Construction scheme of plastering of internal and external walls

First, preparation of construction
(1) Homework terms
1,Agent structure work piece of placements gray unit concerned (build for instance, designing, supervising, unit in charge of construction,etc. confirm together, and sign) . The window frame of the door and needing pre-buried pipeline to be already installed, it is qualified to be and been inspected for acceptance.
2,The falsework used for plastering should be put up first, the shelf will leave the wall 200- 250mm, will put up the foot plank, prevent leaving the dust on the ground, cause the waste.
3,Dig the intersection of concrete and the intersection of wall,etc. and superficial bulge flat, to honeycomb, pitted surface, show reinforcement, loosen part,etc., dig get effect, it use for 1:2. flat 5 cement mortar hierarchically,first class to remove exposing by stiffening rib head and galvanized wive.
4,As to the brick wall, should water one days before plastering drenchedly. As to the wall of building block of aerocrete, because it absorbs water the speed is relatively slow, should advance two days and water, should be above twice every day.
(2) The material is required
1,Cement: 32.5 grades and the above ordinary portland cement or slag portland cement.
2,Sand: Medium sand, the mean grain size is 0.35- 5mm.
(3) Construction appliance
Mortar agitator, gray agitator of paper muscle, platform scale, aperture 5mm sieve, narrow barrow, iron plate, spade, grafter, keeve, ash chute, rubber tube, water spoon, gray spoon, small bucket, watering can, the hawk, wooden trowel, iron trowel, Angle trowel, plastic trowel, big thick stick, the intersection of middle and thick stick, 2m batter stick board, thread board, the Eight Character chi, 5- 7mm thick square mouth batter stick, soft darby, square chi, level made of iron, box chi, wire brush, long woollen brush, Radix Semiaquilegiae brush, whisk broom, powder coil, small white line, chisel, hammer, pliers, nail, stiffening rib checkpost, line falling, rubber overshoes,
Two, qualitative requirement
The qualitative requirement accords with " fitting up project construction quality acceptance specification of the building " (GB50210-2001) Regulation.
Xiang Xu checks the tolerance deviation of the project or accepted value
Top management project 1 Surface at the basic level 4.2.2 one
2 Material assortment and characteristic 4.2.3 one
3 Operational requirement 4.2.4 one
4 Layer of bonding and cover coat quality 4.2.5 one
General project 1 Surface condition 4.2.6 one
2 Detail quality 4.2.7 one
3 Layer requires with interlaminar material and one layer of overall thickness 4.2.8 one
4 It is sewn that cellular 4.2.9 one
5 Drip water line ' Trough) 4.2.10 one
6 Tolerance deviation (mm) Elevation verticality Plaster 4 while being ordinary Advanced to plaster 3
Surface planeness Plaster 4 while being ordinary Advanced to plaster 3
Angle pros of the negative and positive Plaster 4 while being ordinary Advanced to plaster 3
Divide lattice bar into ' Sew) Straightness Plaster 4 while being ordinary Advanced to plaster 3
Dado, suitable for reading straightness of plinth Plaster 4 while being ordinary Advanced to plaster 3

Three, technological process
Subseal Straight, one set of sides, looking for the rule, sticking to gray cake hang Basebead on the wall (set up and mark the muscle) Make corner protector Wipe the cement window board Wipe the dust of bottom Wipe the intercellar layer dust Wipe cement mortar mat coat dust (including cement baseboard, dado etc.) Wipe the mat coat dust of the wall Maintenance
Four, operation process
1,Subseal: It is straight to hang, one set of sides, hit the mound, basebead on the wall, method and wall which wipe processes such as dust and intercellar layer dust of bottom layer,etc. are basically the same while wiping the muscle mortar of paper, but it is gray in bottom spend 1:2 sum intercellar layer dust. or cement be daubed to be lasted mortar for 5 cement mortar, and rub hair one of flat band with the hands by rubing the board. Before the mortar is solidified, sweep the hair with the broom or draw the oblique line alternately at regular intervals with steel trowels on the surface.
2,Wipe cement mortar cover coat: Unless the next day after wipe intercellar layer mortar, be spent 1:2. 5 cement mortar or last thick liquid to last cover coat cement of designing requirement, the thickness is 5- 8mm. First wall wet operate, then thin to blow, make their glue with intercellar layer dust firm by one with mortar, and then wipe for second time, reach the thickness required, wipe off and look for straight after it accepts the body with the nose bar, compact the pressure polish with gray spoon. For prevent, spend by wall, construction match ratio in the material should notice in the course, the water cement ratio can not be too big, control the water cement ratio according to telling somebody what one's real intentions are.
3,The outer wall of large-area wipes construction once, must be ahead of the messenger wire before construction, four large angles and length are greater than the large wall of 6m, pick and dig first in the rugged place, the horizontal direction demands to hang the open line too at the same time, make a parting in every one - storeyed floor, shrink crack (the chink must cram before plastering in the large-area among exterior window frame and wall preventing the outer wall from plastering, prevent the hollowing and infiltrate) . When mat coat plaster, want weight to be unanimous hard, with trowel being first circular to wipe, then draw from head to foot, require the direction to be unanimous, so difficult to leave and wipe the line.
Five, quality problem that should be paid attention to
1,Bind firm, hollowing, crack: Aerocrete wall plaster, most common common fault one of sublevel and bind firm between the matrix, hollowing, crack. The major cause is that the basic unit can not clean clean, water using is eroded, wet and non- enough, does not shave the plain grout. Because the mortar increases in the intensity, setting process, can not produce homogeneously shrinkage stress by oneself, form the desiccation fissure. Innovative approach, can adopt and spray anti-cracking pharmaceutical or apply paint the plain grout which is mixed 107 glue with a brush, increase the cohesive action, reduce the shrinkage stress of the mortar, improve the early tensile strength of mortar, improve and plaster subseal and mortar match ratio are to solve the aerocrete wall and wipe the hollowing of surface, key to the crack. The improvement of mortar surface tensile strength at the same time, it is enough to resist the shrinkage stress on the surface of mortar, after waiting for the mortar intensity to increase, it is enough to bear the influence of shrinkage stress, thus prevent the appearances of the hollowing, dry shrinkage, crack.
2,The coat of plaster is too thick: The thickness of the coat of plaster exceeds the regulation greatly, especially survive once, weigh down the coat of plaster and split. The thickness of the coat of plaster should be controlled through the basebead, keep 15- 20mm. Plaster in conformity with part of one's job, pause operate, each thickness should for 7- 8mm, should wipe second after the first time dust is congealed after all, must guard against surviving once.
3,Door sew, fill dust in or fill dust in to be unureal by the window frame, pre-buried wood brick interval loud, the wood brick becomes flexible, the repeated switch is shaken, the hollowing, crack emerge on both sides of window frame: Should fill doors and windows in, sew, regard one in the charge of special messenger process as, wood brick must pre-buried to build intrablock in the concrete, build the as stated interval by laying bricks or stones to put with the wall. The circumference of architrave with angry concrete wall should be made into a iron concrete pillar, the pre-buried wood bricks are the most appropriate in the pillar.

Construction scheme of plastering of northern indoor wall case
First, basis of compilation
1,Construction drawing and design change file
2," decorations engineering quality acceptance specification of the building " GB50210-2001
3," construction implement use emergency decree " JGJ33- 88
4," safe norm of offering electricity consumption of construction site of the architectural engineering " GB50194- 93
Second, project overview
Unless 1-3 layer beam and plate and concrete wall, unless be whitewashed prismatic face, it is clear up on outer wall to make only,concrete walls non-, entrain the air concrete cypress boards safe whitewash, gig to hand over on the ground, after double-sandwich, wall of the above concrete, column and ceiling are criticized with the putty of white cement, entrain the air the intersection of concrete and the intersection of wall and piece and safe the intersection of cypress and board whitewash pressure polish, ground gig hand over. Entrain the air concrete wall flour brush and adopt the 98ZJ001 interior wall 5, the concrete method is: Brush 801 glue plain cement mortar once, match ratio is gluey for 801: Water =1: 4,15 a thick 1s: 1: 6 cement lime mortar divides plastering twice, 5 a thick 1s: 0.5: 3 cement mortar. Gig to hand over on the ground. Gig and adopt 98ZJ001 floor 1 on the ground, the concrete method combines the layer once for the plain grout, 20 a thick 1s: 2 cement mortar gigs. The outer wall adopts the thermal insulation method inside the wall outside for the thermal insulation, its concrete method is 40mm thick cement mortar expanded perlite heat preservation, its proportion is 1: 2: 4.
Zero - storeyed the intersection of floor and for get rid of, sell at floor department, entry hall and there is special requirement method, carry out according to the 98ZJ001 floor 2 on all ground, brushes the plain grout to combine once, 20 a thick 1s: 2 cement mortar wipes the pressure polish of surface. Shoulder one, shoulder two building floor ground whether the intersection of cement and the intersection of pressure polish and ground look for the slope with the intersection of C20 and detailed the intersection of stone and concrete, hit and wipe and put down at the same time at the same time. Garage the intersection of ramp and ground method the intersection of cement mortar and cover coat and make the intersection of interval and impression pattern of 15cm with the intersection of whorl and stiffening rib.
Carry out according to the standard pattern book chosen on the architectural drawing on the ground of bathroom; Wall cement mortar of bathroom finally gigs, Thailand moors the flour of board and brushes the bottom layer as 25mm thick C25 rice stone concrete, the cover coat is a thick 1 of 10mm: 3 cement mortar. Entrain the air the intersection of concrete and the intersection of wall and flour it brushes his method to be the 98ZJ001 interior wall 7: Brush 801 glue once of plain grout, match ratio is gluey for 801: Water =1: 4,15 thick 2s: 1: 8 cement lime mortar, divide and plaster twice, 5 a thick 1s: 2 cement mortar; Bathroom ceiling and safe to moor board, entrain the air concrete hand over the intersection of placement and first of cement mortar, 20cm of powder, at ceiling, its method is that 98ZJ001 carries 4, the concrete board basal plane of stiffening rib is cleaned out, 7 a thick 1s: 3 cement mortar, 5 a thick 1s: 2 cement mortar, the stenciling coating of surface is selected else, the other placements of the ceiling are not whitewashed.
Inner the intersection of corridor and wall make the intersection of cement mortar and maos of wall into, stick to Xiao brick Fang (undetermined) outside ,It entrains the air on the concrete wall and whitewashes the method as the 98ZJ001 interior wall 7, brushes 801 glue once of plain grout, match ratio is gluey for 801: Water =1: 4,15 thick 2s: 1: 8 cement lime mortar, divide and plaster twice, 5 a thick 1s: 2 cement mortar; Last method concrete wall as 98ZJ001 interior wall 6,15 a thick 1: 3 cement mortar, 5 thick cement mortar, flour is brushed to the bottom of the board on the wall; The inner corridor ceiling is not whitewashed.
Cement mortar stair and ground of stair case, the stair needn't be made and defended the drawer, his method is in 98ZJ001 floor 1, the iron concrete floor, plain cement mortar combines the layer once, 20 a thick 1s: 2 cement mortar wipes the pressure polish of surface; The wall is in order to mix the mortar, his method is the 98ZJ001 interior wall 4, 15 a thick 1s: 3 cement mortar, 10 a thick 1s: 2 cement mortar wipes the pressure polish of surface; It is cement mortar to play the leg wire, its method is that 98ZJ001 plays 3, 15 a thick 1s: 3 cement mortar, 10 a thick 1s: 2 cement mortar wipes the pressure polish of surface.
GRC face white cement putty criticized white; GRC board and column, roof beam junction hang and stick the cloth white cement putty of glass filament to criticize white; Thailand moors the board, column, roof beam junction and hangs metal lath and plaster; Entrain the air on concrete wall and brick wall, distribution box placement, column, roof beam junction and hang metal lath and plaster. The ceiling between the roof beam of the key bed whose radius is 17.4 meters and roof beam whose radius is 22.8 meters is whitewashed by mixing the mortar, its method is that 98ZJ001 carries 3, the basal plane of reinforced concrete slab is cleaned out, 10 a thick 1s: 1: 4 cement lime mortar, 2 thick hemp cuts (or paper muscle) The lime, the stenciling coating of surface is selected else.
Third, preparation of construction
1. The material is prepared
( 1) Cement
Project this adopt 32.5 # ordinary portland cement, should have, produce the intersection of factories and conformity certification and reinspect the qualified experimental report.
( 2) Sand
Plastering uses the sand to be preferably medium sand, require the particle to be hard, clean and having no impurity, can't contain harmful substances such as clay, root of the grass, leaf, alkali quality and other organic matter,etc..
2.The machines are prepared
( 1) Mortar agitator
( 2) Main tool: Wooden trowel, iron trowel, steel leather trowel, wooden thick stick, thread board, batter stick, tape measure, sieve, brush and gray tube,etc..
3.Technology prepares
( 1) Familiar with the drawing before plastering, did the model room well and plastered, determined that reached the fine standard to plaster formally through checking.
( 2) Agent structure carry on project check by related departments, can carry on the project of plastering after confirm qualified.
4.Other preparation
( 1) Check, need pre-buried fulgurite, terminal box,etc., position its firm correct.
( 2) Dig the intersection of concrete and component, the intersection of doors and windows and the intersection of lintel,etc. and superficial bulge flat, to honeycomb, pitted surface, surface of concrete showing reinforcement are dug to the effecting, brush plain the intersection of grout and first ' The weight of mixing water is 10% 107 glue) ,Then use 1: 2.5 cement mortar mend, compact while being flat hierarchically, reject the intersection of stiffening rib and head and the intersection of galvanized wive and head that emerge clear to lose.
( 3) Concrete and dust, dirt and spot,etc. entraining the air on the wall of building block of concrete should be removed clean, to the intersection of concrete structure and surface, entrain the air the intersection of concrete and wall should water wet two days before plastering.
Fourth, construction craft
1.Technological process of operation
The basic unit clears up Water the wet basic unit Look for the rule Cook the gray cake Bidding muscle ( Basebead) Make corner protector Wipe dust and intercellar layer dust of bottom layer Wipe and set up the foot Wipe the dust of surface Clearance Protection.
2.Subseal is required
( 1) The basic unit is the concrete wall
Pick outstanding concrete of wall flat, go on " Exocarpium Citri Grandis punish " as to very sleek the intersection of concrete and surface ,Clean out surface dust, dirt first, dispose of the greasy dirt in the surface of concrete with 10% water containing soda, thereupon wash lye netly with the fresh water, treat the surface of concrete dry, use 1: 1 cement coarse sand mix water, weigh 20% 107 glue in the mortar, get rid of the mortar the wall with the whisk broom, congeal after all, shed water curing, make cement mortar have higher intensity, it is firm to be connected to concrete wall. The handing over placement during entraining the air on concrete wall and concrete wall, according to standardizing the requirement, adopt and add a layer of 10cm wide enhancement deepings, in order to prevent this part from whitewashing crack.
The vertical, rule side, looking for the rule, sticking to the gray cake, basebead hang.
( 2) The matrix is the brick wall
Subseal: Before plastering, must clean the gray dreg in the wall clean, and it is wet to water.
( 3) The matrix is in order to entrain the air on the concrete wall:
Remove mixed mortar, dust, dirt, oil immersion of the wall,etc. clean before plastering. Lose the angular wall to the wane, use 1: 3: 9 the intersection of Calx and lotion of cement mix mortar, mix cement weigh 20% 107 glue mix thoroughly, wipe flat hierarchically, control thickness should drench water curing after solidifying on the ash layer in 7- 9mm each time.
3.The wall is watered
Employ the pin or watering can to be watered and drenched from top to bottom before plastering ' Less than ones that entrain the air on the concrete wall in immersion of water reach 10mm deeply) ,Generally 2d went on before plastering, no less than 2 times per day.
4.Look for the rule
Plaster grade according to whom design drawing require, level the vertical situation according to the basic unit, make basic reference and use the square ruler side first with a wall. When the room is larger in area, should spring the mean line of cross on the ground first, then press the basic unit the angle and line of the wall springs in planeness. Dark corner of the rule immediately. 100mm hang perpendicular line and spring plumb line, guide and spring the overcast angular two sides wall to plaster in the control line of layer thickness the upturning of wall according to the intersection of wall and angle and line that ground spring and then.
5.Make gray cake, arrangement and mark the muscle
After one set of sides looks for the rule to be done well, so as to cook gray cake (sketch) . Stick the gray cake first and then stick to gray cake while operating, it is easy to play the accurate position of the gray cake to choose, reuse the intersection of batter stick and board look for kind to perpendicular to levelling, the gray cake spends 1: 3 cement mortar is completed and will do 5cm square.
Bidding muscle ( Basebead) ,Use the mortar basebead the same as coat of plaster, the foundation of the basebead should depend on height of the room wall. Operation is to make the mortar about about 30- 50cm wide to take among upper and lower gray cakes, and the above plays gray cake in order to allow to push away and wipe off with the thick stick of nose bar, the angular level of the negative and positive marks the muscle and should link up, and mutual perpendicular. The basebead is finished, could carry on the bottom layer of wall and mark gray homework after being slightly flat.
6.Wipe the cement baseboard
Sprinkle water on the completely moist wall, and rinse the dirt well and wipe the bottom layer with cement mortar, the surface is wiped off with the wooden thick stick ¡À 2m long batter stick, reuse the wooden trowel to rub the hair with the hands, wait to wipe the mortar of cover coat the next day at room temperature, the cover coat adopts 1: 2.5 mortar wipes and puts down pressing.
7.Make corner protector
Indoor corner, oral overt corner of door opening, after using the square chi regulation, the fixed good batter stick board of direct sum hang on both sides of overt corner separately, feel secure and stick to the gray cake make level with cement mortar, treat the mortar slightly dry, reuse plain cement mortar to wipe into the angle of small circle.
8.Wipe dust and intercellar layer dust of bottom
Wash muscle can plaster while being about 4 hour, pay attention to too early or not too late. Brush and mix water and weigh once of plain grout of 107 glue of 20% first before plastering, thickness about 5mm, can't leak and wipe, should press hard, make in the tiny chink of mortar break-in, and then separate into layer, it is flat to compact and wipe, with a tie of basebead, reuse the wooden thick stick or vertical level of batter stick board to shave and look for once, and rub the hair with the hands with the wooden trowel. Then carry on quality examination in an all-round way, check bottom dust wipe, level, negative and positive corner stipulate whole, whether smooth level with dark corner junction, wall roof plate junction after the pipeline, and check planeness of the wall and verticality situation with 2m long scale board.
9.Wipe and reserve pin hole, distribution box, trough, box
The special messenger reserves pin hole, distribution box, trough, box on the wall to remove clean with 5cm wide gray mortar of bottom, it is wet to sprinkle water, wipe pin hole, case, trough, box up right and foursquare, smoothly and levelling by mixing the mortar.
10.Wipe the dust of mat coat
When the dust of bottom nearly has 60%-70% dry, can wipe the dust of mat coat (if should be fully watered wetly at the time of the gray over-drying of bottom) ,Mat coat dust two times survive,it is can't last 3mm thickness not to control,should two people simultaneous operation, namely one first thin to blow one while being thin people, another people wipe flat pressure polish immediately, order first go on, catch all in fact while being inferior, with the intersection of steel and leather trowel being coherent to wipe, pigeonhole first, should not get rid of broken work while constructing, but meet the construction pin hole reserved, it is empty to get rid of the lower surface wall.
11.One constructs in winter
( 1) Issue construct winter, indoor entrain the air the intersection of concrete and the intersection of building block and wall plaster, should take, prevent frostbite thermal insulation measure, grit heat, stir mortar,etc. with hot water, make mortar temperature produced to stir lower than ¡æ5 for instance.
( 2) The ambient temperature of plastering in the indoor is not lower than ¡æ5, use and do the inner thick warm thermal insulation and winter protection work of the room well than in advance.
( 3) Freeze a wall built by laying bricks or stones, should take and unfreeze the measure ahead of time, wait to build body to totally unfreeze, and indoor temperature keeps at over 5 ¡æ, can carry on the indoor and entrain the air on the concrete wall and plaster. Can't plaster on negative temperature and frozen wall.
( 4) One should have the special messenger and is responsible for regular temperature measurement, work such as the winter protection of firing prevention to construct in winter, notice the indoor ventilating as well as notice the dust being lived and can't endure cold.
Fifth, quality and acceptance standard
1.Should check the following files and records at the time of the acceptance of work of plastering:
( 1) Construction drawing, design specification and other design documentations of project of plastering.
( 2) Certificate of conformity of products, examining report of the characteristic, record of acceptance of marching into the arena and reinspecting the report of the material.
( 3) Conceal the record of acceptance of the project.
( 4) Record of constructing.
2.The project of plastering should pay reinspecting to setting time and stability of the cement.
3.Plaster project deal with, conceal the project to go on and confirm while being following:
( 1) Plaster loud enhancement measure while or equals 35mming of the overall thickness.
( 2) Enhancement network measure of the matrix intersection of different materials. (adopt it while strengthening the network, the lap width of strengthening network and every matrix should not be smaller than 100mm)
4.Each test of indoor criticizes and spots check 10% at least.
5.The maturing of lime lotion used for plastering should not be less than 15d in period; The maturing which rubs the thin lime powder that the mat coat uses should not be less than 3d in period.
6.The indoor wall, prismatic face and oral overt corner method of door opening should accord with the designing requirement.
7.Various mortar coats of plaster, should prevent before coagulation from quick-dryingly, water is washed, strike, shake and endure cold, should take measures to prevent staining and damaging after coagulation. The coat of plaster of cement mortar should be in maintenance of the wet condition.
8.Must be bound firmly between coat of plaster and basic unit and between every coat of plaster, there should not be delaminating, hollowing in the coat of plaster, the surface should not explode dust and crack.
The tolerance deviation that generally plasters and method of inspection
One Project Tolerance deviation
(senior to plaster) Method of inspection
1 Elevation verticality 3 Measure one chi of inspections vertically with 2m
2 Surface planeness 3 Use 2m batter stick and clearance gauge inspection
3 The angle of negative and positive is up right and foursquare 3 Measure one chi of inspections with the right angle
4 Divide the lattice bar (sew) The straight line spends 3 to draw 5m line, insufficient 5m draws the open line, checks with the steel straightedge
5 The dado, reining in the suitable for reading straight line of angle to spend 3 to draw 5m line, insufficient 5m draws the open line, checks with the steel straightedge
Sixth, finished product are protected
1.In construction, carriage or carry template, the intersection of foot and the intersection of hand and steel tube, springboard, timber, stiffening rib,etc. at the material, will certainly pay attention to not touching the bad angle and concave broken wall. Heavy wooden thick stick, springboard plaster,etc. don't put in accordance with wall by wall, so as not to crack wall or blow, go out of, print the sore by a lot of wall. Forbid constructors to pedal and step on the architrave, windowsill, avoid damage in the raised angle.
2.Plaster and pay attention to protecting built-in fitting,etc. on the wall at the same time at the same time, should notice the electric wire box on the wall, hot-water heating apparatus reserve the hole and opening of collinear through-wall of air conditioner etc. at the same time, closing in that don't be random.
3.Remove falsework, springboard, high horse at the stool, want light to dismantle putting down gently, and it is neat to pile up, so as not to break the doors and windows cupboard, touch bad wall and raised angle.
4.Finish wiping the ash layer before condensing and hardening, should prevent one from being dry, water is washed, strike, shake and push, in order to guarantee the ash layer W.P. and there is enough intensity.
Seventh, safe item
1,Enter the construction site and put on the crash-helmet, observe on-the-spot various rules and regulations.
2,The construction appliance should be finished and checked before using, forbid the machines tape " disease " Operate, guarantee the machines use in normal condition, give full play to mechanical efficiency, guarantee the safety in production.
3,Construct electricity consumption must operate by professional electrician, forbid, draw, connect electric wire arbitrarily while being private, must install the drain protector, and accomplish " a machine, a floodgate, a protection " with charged machines .
5,Pay attention to falling while constructing. Prevent injuring others and injuring by others cross homework.
6,Must use and protect the articles correctly at the scene of building site.
Eighth, civilized construction
1,On-the-spot material have, pile up, take in good order, waste material should taking-in and putting out reaches to the appointed place in time, and accomplish the material of engineering to the limit, it is clear to try the field best the material, can't put the constructional rubbish arbitrarily.
2,Stop the phenomenon of long flowing water, altar lamp that is kept burning day and night, protect survey mark and scene other construction markers well conscientiously. And do the finished protection work well and prevent the finished product from destroying and causing doing over again and other economic losses.
Scheme of construction of plastering of the outer wall
First, basic situation of basic unit of wall:
This engineering structure has been built up already for more than two years, its dust of surface area is more, the necessary large-area is washed before plastering. The surface planeness of the engineering structure is poor; Internal and external wall elevation verticality deflection relatively big, according to survey, obtain the amount of deflection of fruiting between 1.1~1.9cm, the majority, in 1.3~1.7cm, so the one that constructed and is looked at to plastering this time is unusual. The surface should be smooth, clean and connecting Cha to level to plaster ordinarily. Advanced to plaster the surface should be smooth, clean, the color is even, wipe the line, it is sewn that cellular and the gray line should be clear and esthetic. Plastering on the surface around corner protector, pin hole, trunking box should be neat, smooth; The pipeline is postern to plaster on the surface and should be levelled. In order to guarantee the quality of plastering of this project, specially make this special construction scheme.
Second, material is chosen:
1,The cement chooses ordinary portland cement No. 325.
2,Sand choose medium sand to be above, (particle loud to reduce the crack, produce sand)
3,Gao Qiang binder choose the intersection of this city and building constructor, produce 901 the intersection of Gao Qiang and binder, binder this bind degree to be better, (no matter glue time, cohesive strength, wet warm operation,etc. and can accord with the demands for this project after all) .
Third, homework terms:
1,It is qualified to already the agent structure of the placement of plastering check,
2,The falsework used for plastering should be put up, the shelf poles and leaves the wall 200~250mm in vivo.
3,Dig and put down the concrete surface bulge. To the honeycomb, dog hole, pitted surface, show reinforcement, loosen and dig partly,etc. to the effect, use 1: It is flat to mend 2.5 cement mortar hierarchically, remove exposing stiffening rib head and aluminum wire,etc..
4,As to the brick wall, should water drenchedly before plastering.
Fourth, gray mat coat operation process of wall mortar:
1,Subseal: Remove attached objects such as the dust, dirt, alkali membrane, mortar of the wall,etc., should sprinkle water wetly. To construct too sleek the intersection of concrete and wall with the intersection of steel and template, can adopt the intersection of wall and scarifying or with method that gush out, sweep 1: 1 cement mortar disperse and spray to the wall evenly ' Should mix the intersection of cement and the intersection of quantity and 10% 901, use after the even mixed binder in the cement mortar) ,Carry on bottom layer plaster homework just after forming hard, in order to strengthen the intersection of bottom layer and the intersection of intermediate layer and dust and adhesion of the wall.
2,One set of sides, hanging straight: Wipe bottom layer, in front of the dust, must look for good rule, four square making level, standing lining, hanging frank springing datum lining by ruler angle gauge first. It is the intermediate and advanced while plastering, can use the thread board first, check the wall to level, vertical intensity, and is controlling the overt corner up right and foursquarely and crossing the song (can use the square ruler side) Situation under,it plaster to confirm roughly behind thickness (the most last 7mm book) Carry on the hanging wire, (call the line) As to advanced to plaster, should can spring cross curve as directrix in ground first room rule side first, and combine the wall to level, the vertical intensity is roughly fixed. Wall plaster thickness, go on, claim line " fight the mound " ," hit the mound " When should make by one of mounds standards respectively at being at corners about first,then last perpendicular line to last wall inferior horn two standard by plumb bob, the open line among two standards of corner left and right sides, do several pieces of mortar mound every about 1.2~1.5 meters and every benefit from head to foot at overt corner,etc. on the doors and windows.
3,Wall basebead ( Type the column) : After the mortar mound is formed hard, use the mortar the same as coat of plaster, make and make the mortar about 30~50mm wide to take among upper and lower mortar mound, and the above lower mortar mound is accurate, it is flat to push away with the nose bar. Basebead ( Type the column) Should wait for it could go on, stop up surface, plaster homework after being slightly dry finish.
4,Make corner protector: From frame to space of wall, use square ruler behind the side according to the intersection of mortar and mound and door, the fixed good batter stick board of direct sum hang on both sides of overt corner separately. Wipe out the corner protector of cement mortar, and put out the angle of small circle with the overt corner trowel and utilize the position beyond both sides 50mm of overt corner of batter stick board finally, excise, remove the surplus mortar with 40o oblique angle.
5,Wipe dust and intercellar layer dust of bottom layer: Wipe the dust of bottom layer under the wet situation of the wall, to the surface of concrete wall, should brush and sweep grout once first, brush and wipe the dust of bottom layer at the same time at the same time. The dust of bottom layer should adopt 1: 1: 6 cement blends the mortar ' Or according to designing requirement) The thickness is 5~7mm. Treat the dust of bottom layer slightly dry, wipe the intercellar layer dust with the same mortar again, the thickness should be 7~9mm. If the intercellar layer dust is too thick, then the part of one's job, all over daubing, then with the basebead (hit the fence) It is accurate, wipe off and look for straight with the nose bar, and it rubs flat to rub the board with the wood. After it rubs flat that the intercellar layer dust is wiped. In conformity with its vertical, planeness of complete inspection, the angle of negative and positive is up right and foursquare, along straight. Discover the problems, take, mend in time ' Or do over again) Treatment.
6,Wipe and cover the cover coat: The cover coat wipes the paper muscle dust: After the intercellar layer is up to 70% dry ' Can not be soft when but there is finger mark by hand-pressing) ,Can wipe the paper muscle dust and cover the cover coat (such as spacing interval overlength, at the time of the gray over-drying of intercellar layer, should sprinkle water wetly) . The thickness of gray mat coat of rib of the paper can't be greater than 3mm, it is flat to compact wiping while plastering. Treat the mortar slightly dry " Accept the body " (namely waste pressing through gray spoon gray slurry layer will not be turned into a lake) When, should compact in time, and the dry and wet intensity of visual mortar is pressed, very smooth with the end of Herba Typhae water of gray spoon, make the cover coat finer and smoother and smoother. Placements such as wall and dark corner of overt corner of entrance to a cave of window,etc. should push away suitably very smoothly with the angle trowel of the negative and positive separately. Wipe the paper muscle dust and cover the cover coat to bind firmly, there can't be spoon mark, bubble, paper one and seam inequality phenomenon, the dark corner that intersects with the wall or roof beam should become a straight line.
Fifth, wall wipe cement mortar operation process:
1,Subseal: Sets of side, frank cooking the gray cake, playing mound, basebead on the wall ' Type the column) , method and wall which wipe process of dust and intercellar layer dust of bottom layer,etc. are basically the same while wiping the muscle mortar of paper, spend 1:2 sum intercellar layer dust. last sand coating foam 5 cement mortars or cements and with lasting boarding and rubing with the hands dry to bring hair piece, before the mortar is solidified, sweep the hair with the broom or draw the oblique line alternately at regular intervals with steel trowels on the surface.
2,Wipe cement mortar cover coat: Unless the next day after wipe well intercellar layer mortar, be spent 1:2. 5 cement mortar or last mortar to last cover coat cement of designing requirement, thickness 5~8mm, first wall wet operate, then thin to blow with mortar, get, make it glue with intercellar layer dust firm, and then wipe the second, reach the thickness required and wipe off wanting to see that wait until it with the nose bar " Accept the body " And then, compact the pressure polish with gray spoon.
Sixth, construction attentive matters
1,The avoiding of common fault of engineering quality
( 1) Plaster in the hollowing, crack on the entrance to a cave of the doors and windows, wall,etc.. Its major cause and countermeasure produced have the following several points: A, door window frame two frontier fortress dust tight, wall pre-buried wood brick interval too big or wood brick loosen, turned on or off and shake by the doors and windows, produce the hollowing, crack at circumference of window frame of the door. Should pay attention to the intersection of door and window frame fill in, sew, work, arrange for special messenger responsible for, stop up, densify; B, basic unit can not clear up clean or deal with improperly, the wall is not watered completely, after plastering, the moisture in the mortar is very fast the basic unit ' Or bottom dust) Absorb, should clear up conscientiously and water ahead of time; C, base deflection are relatively great, has plastered once the thick, dry minification is relatively larged, should make level hierarchically. Each thickness should be 7- 9mm. (Note: Generally plaster, the total high-level vertical deviation of elevation should accord with " install the test stone of engineering quality in the building " (GB301- 88) Table 5 of China, regulation of 3, 9, and 6, 1, 11. Plasters and does not check to an up right and foursquare one angle of negative and positive in intermediate. D, mortar, raw material to improperly use, should formulate required mortar according to different basic unit, strengthen the work of use and management to the raw material at the same time.
( 2) Plaster on the cover coat and bubble, wipe the line, bloom (explode the gray son) . Major cause and countermeasure produced have the following several points: A, wipe cover coat behind the dust, mortar has not charge ink on the pressure polish yet, therefore appear the bubble phenomenon. Comparatively common hour for the concrete in the basic unit. B, bottom dust are too dry, has not watered, after wiping the cover coat dust, the moisture is sucked by the bottom layer soon, therefore the pressure polish of having no enough time, so remain and wipe the line. .
( 3) It is not smooth, with out of plumb, not up right and foursquare negative and positive angle to plaster on the surface. Its major cause and strick precaution countermeasure are: Half-hearted to hang vertical, one set of sides and send the mortar mound, basebead before plastering, or spacing interval passes short overlength behind the basebead. It is not smooth to cause the quilt damage of the basebead, surface ( 3) It is not smooth, with out of plumb, not up right and foursquare negative and positive angle to plaster on the surface. Its major cause and strick precaution countermeasure are: Half-hearted to hang vertical, one set of sides and hit the mortar mound, basebead before plastering, or spacing interval passes short overlength behind the basebead. Cause basebead not smooth the damage, surface, basebead and coat of plaster shrink differently, therefore produce ruggedly, the negative and positive angle is out of plumb, non- up right and foursquare.
( 4) Connect Cha obviously or inconsistently on the entrance to a cave of the doors and windows, wall, equilateral dust, mainly leaving the construction joint at will cause while operating. Leaving the construction joint should try hard to separate one, preferably leave and locate in the position the place or door window frame of dark corner,etc..
( 5) Plaster indignantly after the pipeline. Mainly the work is half-hearted and careful, has not made level hierarchically, pressure polish.
2,Safe technical measure:
(1)It should be steady and firm that wooden stool, metal falsework,etc. used while plastering in indoor are erected, the skip distance of the falsework can't be greater than 2m, it is not too centralized to pile up materials on the shelf, should not exceed two people's homework at the same time in the foot plank of the same skip distance.
(2)Forbidden to set up the foot plank on implements such as the doors and windows, washing basin,etc..
3,The products are protected
(1)While pushing the dolly or carrying the supplies, should pay attention to not colliding with corner, architrave,etc.. Nose bar and iron the intersection of shovel,etc. and tool don't by on the wall coat of plaster that is just finished.
(2)Should pay attention to dismantling putting down gently lightly while removing and constructing with the falsework, don't break doors and windows and wall.
(3)Want, protect fittings, the intersection of curtain and hook that install already at the good wall ' Cover) , insdie plants such as raceway, box,etc., cleaning with water clean in time to affixed, polluted by the mortaring.
(4)The coat of plaster should prevent water from washing, striking, shaking and pushing before condensing and hardening.
(5)It is not stopped up that protect places such as the good floor drain, excrement tube,etc..
(6)The mortar glued on the window frame of the door should be cleaned out in time.
One Project Tolerance deviation (mm) Method of inspection
Plaster ordinarily Advanced to plaster
A elevation verticality 43 measures one chi of inspections vertically with 2m
2 superficial planeness 43 uses 2m batter stick and clearance gauge inspection
3 negative and positive angles are up right and foursquare 43 measures one chi of inspections with the right angle
4 fen lattice bar ( Sew) The straight line spends 43 to draw 5m line, insufficient 5m draws the open line,
Check with the steel straightedge
Plaster in the basic unit
Plaster in the middle level
Plaster in the surface layer
Wall at the basic level
Ornamental tolerance deviation that plasters and method of inspection