Build in as industry elder brother, in quality management the respect also has a demonstrative example effect, 3 bureaus were built to be combed in residential project project in easy occurrence quality common fault and risk, what as quality the canal accuses is strong, summary is quality of substance of residential engineering construction " 10 forbid " , this also is the basis that becomes good project, friends can consult carry out!
3 bureaus are built in " residential project 10 forbid " summary
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The 1, wall outside forbidding inside does not hang steel wire to undertake plasterer between different matrix
Correct example
Before wall body plasterer, 250mm wide steel wire is hanged between different matrix, every edge width is not less than 100mm, blow be bored with child before add set without spin cloth, avoid occurrence break.
2, forbid to use brick, steel tube to seal hole of obligate of the wall outside blocking up
Correct example
Before wall obligate hole closes outside, should undertake wool is handled certaining, junior before obligate hole travel raises a standard, able to read aloud fluently sets dustpan mouth, expand with fine stone concrete beat is close-grained.
The 3, plasterer before forbidding to wearing wall screw aperture to did not undertake be sealinged effectively blocking up reaching waterproof processing
Correct example
Screw of wall shears force seals a standard way:
(1) before screw hole is repaired must first the bushing inside purify screw hole, ram 1:2 can be passed inside screw holedo rigid cement mortar or make epispastic gum, use for many times fill fill to ensure close-grained, two side use inside and outside of room of screw mouth of a cave 1:2Waterproof mortar 2cm seals dry rigid, mortar face is bulgy structural range 2mm.
(2) periphery of outer wall hole divides besmear to brush 1.0mm thick JS is waterproof, besmear brushs limits to be 100 × 100mm. The water pouring test of above has 24 hours after finishing, ensure not leakage.
4, forbid to appear 2 times structural concrete beat realizes an elephant not closely
Correct example
(1) tectonic column is irrigated before building concrete, must raft the tooth of brick wall horse inside tectonic column and pattern plate is irrigated with water asperse wet, the concrete oar material that lest irrigate,builds brings about cobble by adsorption of body of brick wall build by laying bricks or stones to fill in and produce the not close-grained phenomenon such as face of beehive, hemp in column internal resistance.
(2) appropriate is slump of tectonic column concrete 50 ～ 70mm, the bead diameter of cobble is unfavorable be more than 20mm, concrete mixes close to give makings hind in the spot should irrigate inside 1.5h build finish.
(3) brace up when pounding concrete, appropriate is used insert type concrete vibrator, layer of part of one's job brace up pound, vibrating head is followed brace up along with unplug, every time brace up pounded ply should not exceed brace up 1.25 times of dolly. In brace up pound while, the form that uses pattern plate of little weight clap affirms the packing of concrete.
5, forbid to was not installed bury bushing and annulus of shut-off of water beforehand penetrable basement structure
Correct example
Pass through when basement uses rigid and waterproof bushing, solder with reinforcing steel bar fixed, cut off place of reinforcing steel bar to need to reinforce filling solder reinforcing steel bar, consolidate processing.
6, forbid occurrence windowsill and window edge not to have waterproof and tectonic phenomenon
Correct example
The window carries make it of underside of place general lintel on the head outside low inside tall cant, water of leakage of the edge that it is a window sets a structure waterproof.
7, after forbidding occurrence structure, irrigate take pattern plate to prop up a system to was not raised alone set a phenomenon
Correct example
Irrigate after roof build take pattern plate to install the independent system that prop up, when demolishing roof pattern plate, irrigate after take place pattern plate to reach the reservation that prop up to be not demolished.
8, forbid to appear to be buried beforehand seal between bushing and structural floor not close-grained and the phenomenon that produces leakage
Correct example
Second beat is assigned after obligate hole raises a standard, do the test that shut water, ensure fine stone concrete is close-grained, integral sense is good, reduce leakage water phenomenon.
9, forbid indoor service pipe direct from waterproof oppose bank root ministry or cross below the doorsill
Correct example
Toilet service pipe is not gotten direct from guide the wall is crossed, should optional as follows two kinds wear set one of pattern:
(1) toilet service pipe stands outside pitting instead 200mm is returned on the face from body of build by laying bricks or stones wear inside the wall set.
(2) toilet wears the service pipe that return bank to arrange the direction that return bank to bury set a paragraph of distance to go up again return to metope of body of build by laying bricks or stones, do not cross directly pit instead, should control good service pipe to bury establish the position (bend place should be in the place of sectional be placed in the middle that pits instead) , place of leakage of be well versed in is not formed so that be in inside bank instead.
10, forbid group of occurrence kitchen, toilet week and flue root ministry to did not set Tong to guide wall phenomenon
Correct example
Bottom of kitchen, toilet, flue or concrete of circumjacent setting C20 guide wall, guide 50mm of wall width ≥ , high ≥ 100mm, and do not achieve face level under circumjacent ground.
