【正文】
ngency of the concrete be subjected to inner part concrete of control, creation very big of pull should dint but creation crack, this kind of crack usually just in more shallow scope of the concrete surface creation. The alignment of the temperature crack usually none settle regulation, big area structure the crack often maneuver interleave。s45 176。t resist its constringency, therefore creation influence concrete Su constringency open the main factor of crack to have water ash ratio, concrete of condense time, environment temperature, wind velocity, relative humidity...etc.. 建筑施工混凝土裂縫的預防與處理 –4– Main prevention measure:One is choose to use stem the Suo value smaller higher Huo sour salt of the earlier period strength or mon the Huo sour brine is strict the control water ash ratio, the Chan add to efficiently reduce water to increment the collapse of concrete fall a degree and with easy, decrease cement and water of is to sprinkle before building concrete, water basic level and template even to soak is in time to overlay the perhaps damp grass mat of the plastics thin film, hemp slice etc., keep concrete eventually before the Ning surface is moist, perhaps spray to protect etc. to carry on protect in the concrete is in the heat and strong wind the weather to want to establish to hide sun and block breeze facilities, protect in time. to sink crack and prevention The creation which sink to sink crack is because of the structure foundation soil quality not and evenly, loose soft or return to fill soil dishonest or soak in water but result in the asymmetry sink to decline with the result that。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。out a problem according to the actual circumstance. In the concrete engineering the familiar crack and the prevention Suo crack and prevention Stem the Suo crack much appear after the concrete protect be over of a period of time or concrete sprinkle to build to plete behind of around a the cement syrup humidity of evaporate would creation stem Suo, and this kind of constringency is can39。Have outside carry the crack that the function cause。s life and property lot of all of crash of engineerings is because of the unsteady development of the crack with the result age science research with a great deal of of the concrete engineering practice certificate, in the concrete engineering crack problem is ineluctable, also acceptable in certainly of the scope just need to adopt valid of measure will it endanger degree control at certain of scope reinforced concrete norm is also 建筑施工混凝土裂縫的預防與處理 –2– explicit provision:Some structure at place of dissimilarity under the condition allow existence certain the crack of at under construction should as far as possible adopt a valid measure control crack creation, make the structure don39。 大 連 理 工 大 學 城 市 學 院 本 科 外 文 翻 譯 建筑施工混凝土裂縫的預防與處理 Building construction concrete crack of prevention and processing 學 院(系): 建筑工程 專 業(yè): 工程項目管理 學 生 姓 名: 陳慶 學 號: 202032040 指 導 教 師: 張強 完 成 日 期: 2020 年 2 月 10 日 大連理工大學 建筑施工混凝土裂縫的預防與處理 –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。s ising 1 kind is anticipate by the freestone bone, cement, water and other mixture but formation of the in addition material of quality brittleness not and all the concrete construction transform with oneself, control etc. a series problem, harden model of in the concrete existence numerous tiny hole, spirit cave and tiny crack, is exactly because these beginning start blemish of existence just make the concrete present one some not and all the characteristic of tiny crack is a kind of harmless crack and accept concrete heavy, defend Shen and a little bit other use function not a creation to after the concrete be subjected to lotus carry, difference in temperature etc. function, tiny crack would continuously of expand with connect, end formation we can see without the aid of instruments of macro view the crack be also the crack that the concrete often say in the engineering. Concrete building and Gou piece usually all take sewer to make of, because of crack of existence and development usually make inner part of reinforcing bar etc. material creation decay, lower rein