【正文】 he piece of enlargement concrete structure in every aspect accumulate, outside the Cape department of the Gou piece pack type steel, adoption prepare should the dint method reinforce, glue to stick steel plate to 建筑施工混凝土裂縫的預(yù)防與處理 –9– reinforce, increase to establish fulcrum to reinforce and jet the concrete co mpensation reinforce. 3, concrete displacement method Concrete displacement method is processing severity damage concrete of a kind of valid method, this method be first will damage of the concrete pick and get rid of, then again displacement go into new of concrete or other in mon use displacement material have:Common concrete or the cement sand syrup, polymer or change sex polymer concrete or sand syrup. 4, the electricity chemistry protection method The electricity chemistry antisepsis is to make use of infliction electric field in lie the quality of electricity chemical effect, change concrete or reinforced concrete the environment appearance of the place, the bluntness turn reinforcing bar to attain the purpose of protection method, chlorine salt39。Thorough with pierce through sex of temperature crack general and short side direction parallelism or close parallelism, crack along long side cent the segment appear, in the center more width the size be different, be subjected to temperature variety influence more obvious, winter pare breadth, summer more concrete temperature crack that the heat inflation cause is usually in the center the thick both ends be thin, but cold Suo crack of thick thin variety not too emergence of the this kind crack will cause the rust eclipse of reinforcing bar, the 建筑施工混凝土裂縫的預(yù)防與處理 –6– carbonization of concrete, the anti jelly which lower concrete melt, anti tired and anti Shen ability etc.. Main prevention measure:One is as far as possible choose to use low hot or medium hot water mire, like mineral residue cement, powder ash from stove cement...etc..Two is a decrease cement dosage, cement dosage as far as possible the control is in the 450 kg/m 3 is to lower water ash ratio, water ash of the general concrete ratio control below is improvement the bone anticipate class to go together with, the Chan add powder ash from stove or efficiently reduce water etc. to e to reduce cement dosage and lower water to turn is an improvement concrete of mix blend to process a craft, lower sprinkle of concrete to build is the in addition that the Chan add a have of fixed amount to reduce water and increase Su, slow Ning etc. function in the concrete, improvement the concrete mix to match a thing of mobility, protect water, lower water to turn hot, postpone hot Feng of emergence is the heat season sprinkle to build can the adoption take to establish to hide sun plank etc. assistance measure control concrete of Wen Sheng, lower to sprinkle temperature of build the is the temperature of big physical volume concrete should the dint relate to structure size, concrete structure size more big, temperature should dint more big, so want reasonable arrangement construction work preface, layering, cent the piece sprinkle to build, for the convenience of in spread hot, let up is at great inner part constitution of the physical volume concrete cool off piping, cold water perhaps cold air cool off, let up concrete of inside outside difference in is the supervision which strengthen concrete temperature, adopt to cool off in time, protection is to reserve temperature constringency to is to let up to control, sprinkle proper before building concrete in the Ji rock and old concrete top build a 5 mm or so sand mat a layer or usage asphalt etc. material Tu2 is to strengthen concrete to protect, the concrete after sprinkle build use moist grass Lian in time, hemp slice39。s45 176。t big in match ratio design give settle of use water is the earlier period which strengthen concrete to protect, and appropriate extension protect of concrete construction want to be appropriate extension concrete heat preservation to overlay time, and Tu2 Shua protect to is a constitution the acmodation is in the concrete structure of the constringency sew. Su constringency crack and prevention Su constringency is the concrete is before condense, surface because of lose water quicker but creation of Su constringency crack is general at dry heat or strong wind the weather appear, crack39。Have outside carry the crack that the function cause。 大 連 理 工 大 學(xué) 城 市 學(xué) 院 本 科 外 文 翻 譯 建筑施工混凝土裂縫的預(yù)防與處理 Building construction concrete crack of prevention and processing 學(xué) 院（系）： 建筑工程 專 業(yè)： 工程項目管理 學(xué) 生 姓 名： 陳慶 學(xué) 號： 202032040 指 導(dǎo) 教 師： 張強 完 成 日 期： 2020 年 2 月 10 日 大連理工大學(xué) 建筑施工混凝土裂縫的預(yù)防與處理 –1– Building construction concrete crack of prevention and processing Abstract The crack problem of concrete is a widespread existence but again difficult in solve of engineering actual problem, this text carried on a study analysis to a little bit familiar crack problem in the concrete engineering, and aim at concrete the circumstance put forward some prevention, processing measure. Keyword:Concrete crack prevention processing Foreword Concrete39。t appear crack possibly or as far as p