Saturday, December 10, 2016

Ceramic Mosaic floor construction technology

Ceramic Mosaic floor construction
1 scope
The technology standard is applicable to industrial and civil building ground shop sticks ceramic Mosaic (Mosaic) the ground surface.
2 construction preparation
2.1 material and main equipments:
2.1.1 cement: more than 425 ordinary Portland cement and slag Portland cement, should have the factory certificate.
White cement, silicate, 425 white cement.
2.1.2 sand, coarse sand and medium sand, unavailable to sieving silt content is not more than 3%.
2.1.3 ceramic Mosaic: after entry should be unpacking inspection specifications, colors, shapes, such as the quality of the paste meets the design requirements and the provisions of the relevant standards.
2.1.4 major equipment: small, half barrel, broom, bucket, feet, hand shovel, iron float, big, in the bar, small bar, sieve, narrow trolley, wire brush, watering can, hammers, hardwood clappers (240 mm x 120 mm x 50 mm), alloy sharp chisel, flat chisel (16 a K8 K6 alloy steel welding with phi), sheet steel operation, dial plate (200 mm * 70 mm * LMM), small desktop grinding wheel.
2.2 operation conditions
2.2.1 wall plaster finished and have good + 50 cm level elevation lines.
2.2.2 casing has been done through the ground, tube hole used pisolite concrete block close-grained.
2.2.3 design requirements to do the waterproof layer, has completed implicit inspection procedures, and finish the water test and inspection procedures done.
3 operation process
3.1 process:
Cleaning brush at the grass-roots level, elastic line - cement, mud to cement mortar screed-coat, water layer - >
The shop is stuck ceramic Mosaic - repair - brush, jie paper to dial the seam, water irrigation sewing and curing
3.1.1 cleaning at the grass-roots level, elastic line: will be cleaned up at the grassroots level surface hair skin will sweep off,. To play the level elevation line on the wall.
Cleaning brush 3.1.2 cement slurry: good uniform ground water, then use broom brush evenly spread cement slurry (water cement ratio 0.5). Area not too large, the brush should work closely with laying mortar screed-coat of next working procedure, brush with slurry with cement mortar.
Cement mortar screed-coat 3.1.3 do:
3.1.3.1 screed: will be subject to metope + 50 cm level elevation lines, measured surface elevation, horizontal line do ash cake, grey for the bread on the ceramic Mosaic of skin. Then screed, in the middle of the room every 1 m screed. Have a floor drain according to the design requirements of slope to find slope, screed should be radiated in the direction of the floor drain.
3.1.3.2 screed, with 1:3 dry hard cement mortar (to handle the kneading dough, moist degree ground), laying thickness of about 20 ~ 25 mm, with large poles (the reinforcement) mortar leveling, wood float solid, smooth. Has a slope of floor drain room according to the design requirements to the water.
3.1.4 find founder, elastic line: leveling layer with good after 24 h or compressive strength to l. 2 mpa, after on the leveling layer width size measurement room, play cross the line of control in the center of the room, according to the design requirements of design combined with ceramic Mosaic per size, calculate the shop is stuck by the number of sheets, not the entire should be left to the edge, not to clear.
3.1.5 do cement combining layer: on the mortar screed-coat, after water wet, wipe a 2 ~ 2.5 mm thick layer of cement combining (appropriate mixing cement weight by 20% of 107 glue), should wipe with stick, area is not too big.
3.1.6 spread ceramic Mosaic: appropriate whole shop with continuous operation at a time, if time can't spread room, must be cut after if qi, clean up the ashes. Specific operation should be in the slurry when not spread ceramic Mosaic begins when the initial setting should be on the back (clean), from the inside to the outside along the line of control, the auxiliary turns up the side of the paper, first show mosaics to line, immediately after the good affix ceramic Mosaic shop (paper up); Followed by hand on paper paving, using word (people stand on the board), make the slurry into the Mosaic tile seam, until the paper reveals the watermark brick joints. Continue to when the shop is stuck not stepping on the paved Mosaic, should the operation back.
3.1.7 dressing: after the whole set, mat board on Mosaic, people standing on the plate repair around the edges, and the door of the Mosaic tile ground and other ground then wake is fixed, the guarantee if straight.
3.1.8, jie paper brush water: after the shop is followed by a brush on paper evenly water, room temperature over 15 ~ 30 min paper and wet (e.g., not wet may continue to sprinkler), at this point you can start jie paper, paper and keep the hair clean.
3.1.9 dial seam (completed before final set in the slurry should be combined with layer) : jie after paper, timely check whether nuiko evenly, nuiko were not straight, dial down gently with small rely on foot than the operation, straightening, and after the adjustment Mosaic using wood board parker (using a hammer plate parker), and paste filling have fall off, the lack of the Mosaic of particles. Floor drain, pipe mouth around the place such as Mosaic, according to slope shop try to cut in advance to do Mosaic in conformity with the nozzle set closely. In the above dial the seam in the process of adjustment, to check the flatness in 2 m by feet at any time, deviation not more than 2 mm.
3.1.10 crack seal: dial the seam after the second two days (or slurry layer combination after the final set), with the whitewater mud or with Mosaic color brush seam of cement slurry, dip cotton silk, slurry from the inside out along the seam, rubbing brush, brush so far, and in a timely manner to clean up the ashes on the surface of the Mosaic, prevent the pollution to the surface.
3.1.11 maintenance: ceramic Mosaic floor seam after 24 h, should be covered with sawdust room temperature curing (or covered with plastic film), the curing time shall not be less than 7 d, and is not allowed here.
3.1.12 winter construction: interior operating temperature shall not be lower than + 5 ℃, the sand can not have frozen blocks, Mosaic tile surface can not have frozen phenomenon. Maintenance phase surface must be covered.
4 quality standards
4.1 ensure project: ceramic Mosaic varieties, specifications, color, quality must meet the design requirements, the combination of surface and base must be strong, no empty drum.
4.2 the basic items:
2 surface clean, design clarity, colour and lustre is consistent, uniform seam, peripheral straight, ceramic jin brick no crack, Angle and lack of stare blankly phenomenon.
4.2.2 floor drain slope comply with the design requirements, not water, no water, the floor drain (pipe) attaches tight and firm, no leakage.
Holdings the line that play a base surface is clean, uniform seam formation, highly consistent, combined with the strong, the wall thickness is appropriate.
4.2.4 and pectin edge materials in a variety of surface and size meet the requirements of the design requirements and construction specifications edges tidy and smooth.
4.3 allowable deviation project, are shown in table 7-9.
Ceramic Mosaic surface allowable deviation table 7-9
Will project allowable deviation (mm) test method
1 the surface roughness in 2 m by 2 feet and wedge feeler check
2 seam straight line 3, 5 m, less than 5 m's line and the ruler quantity check
3 joint wedge feeler check and quantity of the height difference of 0.5 feet
4 kicking sewn straight line 3, 5 m, less than 5 m's line and the ruler quantity check
5 plate gap width is not more than 2 feet quantity check
Note: items are 5, such as the design requirements, should be checked according to the limits in the table.
5 finished product protection
5.1 after the ceramic Mosaic set shop, insert is more, if the other process should be spread mulch on surface to protect it.
5.2 application of plate cutting ceramic Mosaic, banned on has been paved surface operation.
5.3 cart operation should pay attention to protect the ground of the doorframe and completed, door frame is easy to be touch the part of the car should be package. Car ground to add cushion board.
5.4 don't touch in the process of moving a variety of pipeline operation, nor the mortar and the ceramic jin brick drops in Ann up floor drain pipe.
6 should pay attention to quality problems
6.1 not straight seam, uneven: before operation should choose ceramic Mosaic, length, width of the same whole Zhang Jin brick is used in the same room, dial the seam at the seam line to pull through, will straight line of bricks.
6.2 surface empty drum: base must be cleared before making the leveling layer, water wet, mortar screed-coat, after finishing room may not be in want closed, prevent pollution, ground effect with the surface of the bonding. Spread ceramic Mosaic, the slurry layer with Mosaic pavement operation at the same time, which increases with the increasing brush shop, may not be the area of the brush is too large, to prevent slurry drying effect caused by empty drum.
6.3 ground leakage: toilet, bath rooms on the ground floor board, water and other pipe done, the hole should be blocked close-grained, and add a sleeve, and then do the waterproof layer, the acceptance of nozzle area is tight integration with the waterproof layer, after waiting for water qualified to do the leveling layer. Mosaic tile surface should be done after the completion of secondary storage test.
6.4 surface pollution: wipe seam should be more than at any time will be clean, when after the surface finish must be covered, in case of other workers operating pollution.
6.5 cut around the floor drain Mosaic tile sets of irregular: make a leveling layer should be looking for a good floor drain slope, when after the large shop, shop floor drain again around the Mosaic, according to floor drain diameter calculation in advance good Mosaic blocks (around the floor drain is radiate with shop), to carry on the processing, try again after shop is suitable for formal shop.
7 quality records
This technology standard should have the following quality records:
7.1 cement factory certificate.
7.2 ceramic Mosaic factory certificate.
7.3 waterproof ground concealment acceptance record and storage.
7.4 ceramic Mosaic floor subentry project quality rating record.

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