mbt laarzen anq mlq zhyz zvu

asbryobvrz

,[link widoczny dla zalogowanych]
After pouring with construction design and construction techniques method

To prevent the leakage of plasma, or concrete loose. Back strip on both sides should be cut off by reinforced steel mesh stent by the structure of the form designer to determine both sides of the section, when the basement waterproofing requirements, the underground water with not retained after the raft straight. Construction unit should assign specific responsibility to maintain cleanliness inside the back strip to prevent Yue poured with the steel corrosion, or reinforced by bending, step bends. ■ pouring belt closure Shih T before the band should be poured after the debris clean up, make steel rust 『== _ = for, and two cases?} Has drilled a three-Ning Shi, Tu Ilj0 interface agents, with concrete poured after the two continents should be higher than the increase of concrete strength grade level, and the expansion agent by mixing the micro-shrinkage-compensating concrete pouring. Concrete pouring back strip, should be controlled on both sides of the environmental temperature is low dry time of coagulation on the pouring temperature, and should attended. After pouring with concrete pouring has been completed, should pay attention to good conservation. After construction with the closed pouring time,[link widoczny dla zalogowanych], generally speaking, after pouring the contraction zone, not less than two months,[link widoczny dla zalogowanych], usually considered the shrinkage deformation of concrete at this time has completed more than 60%; on the small settlement of casting tape, such as high-rise building should be main structure of the cap and then poured with concrete after pouring, which called the first high-rise building construction, the first settlement, to release part of the difference between top and skirt settlement; or observation under the settlement, when the construction of tall buildings to a certain height, if the settlement of small high-rise buildings, estimated between top and skirt in a settlement of the differences within the control,[link widoczny dla zalogowanych], we also can bring back strip of concrete pouring. Before any closed water zone, the structure the designer should be clearly stated on the drawing back strip should not be allowed within a certain range near the piling construction materials, construction load limits, and do a good job on both sides of the back strip temporary support. This is especially so many of the works, the construction of the template with quick release system, but also to pay attention this time around after the supporting cast with quality, to prevent the removal of the template over lemma, due to support loose, causing structural displacements after cracking three pairs poured some of the construction process with the specific requirements of 3,1 on the back strip of concrete and construction requirements (1) after the pouring of concrete with the post-pouring, you should use no shrinkage of the concrete irrigation reality. No shrinkage of concrete using expansive cement mixing can also be used with the expansion of the role of mixing additives with ordinary cement mixing. The strength of concrete before pouring concrete at least the same or improved level. (2) after the pouring of concrete with the outpouring of time after the pouring, the latter should be taken to different types of pouring water with a different time. Stretching back strip according to the shrinkage of concrete poured to complete the first time may be. Different varieties of cement, different water-cement ratio, curing conditions of different temperature difference between the contraction of concrete to complete the time-dependent, generally carried out after construction, water 60d, in the schedule calls for the urgent and special difficulties, should not be less at 30d. After the settlement should be poured with the general stability in the sound of building settlement, and then poured with concrete after pouring. 32 pairs with a poured concrete after construction requirements (1) the form of back strip joints, should be strictly according to the construction drawings, construction joint construction to use plug board plug board, depending on the interface installed in the convex form of the Bill. In the post carefully before pouring concrete cleaning, washing, cutting hair, the concrete must be vibrated at the dense, to meet the design strength of the concrete grade standards. Especially the basement floor should pay more attention to the construction required to improve its structural waterproof ability to avoid saying water phenomenon (2) after the first pouring of concrete poured band is completed, should be to the protection, care of the Department should cover, surrounded by IIf Zhu Zhen envelope from the tincture of masonry building envelope, preventing the accumulation of garbage back strip and the construction process is difficult to clean up contaminated steel, stampede. (3) after pouring part of the back strip of concrete must use non-shrink concrete, mixed with some of the best conditions early strength agent, ratio of pre-construction examination, mixing should seriously and carefully poured dense mix, but also note that after pouring water conservation. (4) after pouring the slab with a cross in the post-coagulation ± not pouring water before a long period of both sides of the cantilever structure, stress state, the cross during the construction and support within the template can not be removed after the poured concrete must be designed intensity reaches 75% of its intensity, by the removal of top-down order. Pouring concrete in the back strip, after a certain period of time to go to monitoring, and data with the settlement observation i have recorded on file. In short, the back strip (slit) the design, construction, is to ensure effective connectivity an important part of the structure, now in addition to implementing the requirements of existing specifications, but also depending on the engineering properties, characteristics,[link widoczny dla zalogowanych], effects, carefully designed, well construction, to ensure the integrity of each project, perfect and use, in order to achieve the real purpose of improving project quality. TECHNOLOGY INFORMATION SCIENCE & TECHNOLOGYINFORMA_rIuN