Tuesday, December 20, 2016

Clear water brick wall jointing construction technology

1 scope
The technology standard is applicable to industrial and civil building brick wall jointing construction of water.
2 construction preparation
2.1 material and main equipments:
2.1.1 cement, Portland cement or slag cement, 325 applied to and the varieties, and the label, and the cement which the batch number.
2.1.2 sand, fine sand, a 2 mm before use. Aperture sieve or yarn tension screen.
2.1.3 fly ash: fine through 0.08 mm square hole sieve, sieve allowance is not more than 5%, can replace part of cement used.
2.1.4 major equipment: flat chisel, a hammer, chalk line bag, mortar board, long, short, watering can, small steel drum of the valve of the valve, sieve, xiaoping spade, iron plate, broom, etc.
2.2 operation conditions:
2.2.1 structure engineering has been completed, and after acceptance of quality, reach the qualified standard, install door window frame.
2.2.2 erected scaffolding (or column), do well the safety protection.
3 operation process
3.1 process:
Spring line to find the rules to slit, seams, doors and Windows around seam water to tick off seam, and metope
Cleaning the wall to find bare seam, clean up the walls
With one exclusive foundation hand-eye 3.2: such as scaffolding, should with shelves, with feet hand-eye, should first mortar, clean up dirt in the foot hand-eye, sprinkling water and moist, then use the same as the original brick wall color brick, build by laying bricks or stones hand-eye foot.
To find rules: 3.3 play line from the top down along the vertical seam hung vertically, with a chalk line of the vertical line on the wall, as a vertical line, horizontal seam with brick and stare blankly play line control, every online outside the brick edges, flat chisel picking, carved carved on the deflection should be plaster is lacking. Then brick ground into a fine powder and 107 rubber mix into a paste, brush on the repair of ash layer, so that it is the same color.
Doors and Windows around seam and fill brick windowsill 3.4: before jointing, sew around the doors and Windows plug as a process, with 1:3 cement mortar seam yan and plug. Be consistent in depth. The processing of aluminium alloy door window frame around the crack, according to the design requirements of filling materials, at the same time should be being damaged on windowsill, touch off brick build by laying bricks or stones good, hooked together.
3.5 metope should be watered before jointing, wetting metope.
Tick off seam 3.6:
3.6.1 track: mixing mortar jointing with mortar mixing ratio is 1:1 or 1:1.5 (cement, sand, or 2:1:3 (cement, fly ash, sand), along with it should be paid attention to mix, do not use for the night.
3.6.2 jointing sequence should be top-down, first the horizontal seam, after GouLi seam.
Hooks when the horizontal seam long valve, mortar board her left hand, right hand, and of the valve will grey board to hook in the bottom seam, right hand with sew mortar into inside of the valve, mortar cannot too thin, from right to left to feed grey, along with the hook with mobile mortar board, check after a while, with a push pull move around within the brick joints of the valve, make the slurry inside the seam compaction, pressure light, depth is consistent.
GouLi seam in short valve, available from ash mortar board on a starting point of the valve into vertical seam, also can be grey board on the wall, with short the slurry into the slot of the valve, the valve to move up and down in the seam, the slurry within the seam compaction, and pay attention to the depth and horizontal seam. No request in such as design, general GouAo seam depth is 4 ~ 5 mm.
3.6.3 metope cleaning: after each rack hook the seam, to use broom to clean, metope should be along the seam cleaning, sweep horizontal seam first, after sweeping vertical seam, and constantly shake whisk broom of mortar, reduce pollution.
3.6.4 radar echoes captured jointing metope should be horizontal even vertical, depth, cross stitch lap formation, compaction, pressure light, can not have leakage. Wall MianYang Angle of horizontal Angle to the founder, Yin Angle about vertical seam should be clear, windowsill tiger brick seam to hook on three sides, the corner should be founder.
3.6.5 prevent leak, should be to find a time, in the line of sight barrier. Not easy operation, easy to overlook, if you have lost, leak, should give the fill, fill. Fill after check with local metope should be clean again.
3.6.6 dry weather, we have to have GouHaoDe seam water conservation.
4 quality standards
Strong 4.1 binding, compaction finishing, no cracking and other defects.
4.2 horizontal even vertical, junction, smooth depth width is consistent, without seam.
4.3 seam grey color is consistent, brick surface clean.
5 finished product protection
5.1 when jointing the mortar of splash down, must be clean at all times, are not allowed to be on the shelf to pour slurry and other sundry, in order to avoid splashing dirty walls.
5.2 don't disorderly to tear protective film when filling aluminium alloy door window frame, tick off seam mortar don't pollution door window frame.
5.3 vertical haul high frame around, with plastic film or matting, against pollution of the metope mortar.
5.4 shelf before, first the mortar clean up dirt on the scaffolding.
6 should pay attention to quality problems
6.1 somehow stitched if uneven: hook when vertical seam with no joints connected if, without careful check pressure repeatedly, no sew somehow clean sweep seam.
6.2 door window frame around the plug ash lax: no plug after the door window frame as a procedure, strict requirements, construction is not serious, hook ash only surface, not to plug in.
6.3 nuiko inconsistent depth: mortar joint nib two-tone, operation is not serious, technology is not skilled.
6.4 there are narrow gap and blind stitching: did not check carefully before jointing, no to slit the narrow sewing and blind sewing.
6.5 nuiko leak check: waist line, lintel, le feet first brick and leakage often hook on the side of the door bang brick wall, the operator should be repeated search, found leak check repair in time.
7 quality records
This technology standard should have the following quality records:
7.1 the material of raw material certificate and test report.
7.2 cement factory certificate.
7.3 quality inspection records.

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