【導(dǎo)讀】些預(yù)防、處理措施。由于混凝土施工和本身變形、約束等一系列問(wèn)題，硬化成型的混凝土中。呈現(xiàn)出一些非均質(zhì)的特性。微裂縫通常是一種無(wú)害裂縫，對(duì)混凝土的承重、防滲。及其他一些使用功能不產(chǎn)生危害。但是在混凝土受到荷載、溫差等作用之后，微。部的鋼筋等材料產(chǎn)生腐蝕，降低鋼筋混凝土材料的承載能力、耐久性及抗?jié)B能力，影響建筑物的外觀、使用壽命，嚴(yán)重者將會(huì)威脅到人們的生命和財(cái)產(chǎn)安全。工程的失事都是由于裂縫的不穩(wěn)定發(fā)展所致。受的，只是要采取有效的措施將其危害程度控制在一定的范圍之內(nèi)。少裂縫的數(shù)量和寬度，尤其要盡量避免有害裂縫的出現(xiàn)，從而確保工程質(zhì)量。較大的表面干縮變形受到混凝土內(nèi)部約束，產(chǎn)生較大拉應(yīng)力而產(chǎn)生裂縫。狀或網(wǎng)狀淺細(xì)裂縫，寬度多在，大體積混凝土中平面部位多見(jiàn)，干縮裂縫通常會(huì)影響混凝土的抗?jié)B性，引起鋼筋。影響混凝土塑性收縮開(kāi)裂的主要因素有水灰比、混凝土的凝。度變化影響較為明顯，冬季較寬，夏季較窄。

　　

【正文】 lipse, the reinforcing bar physical volume of the rust eclipse inflation, cause concrete bulge crack, the crack of this kind type much is a crack lengthways, follow the position of reinforcing bar of prevent measure from have:One is assurance reinforcing bar protection the thickness of the is a concrete class to go together with to want is a concrete to sprinkle to note and flap Dao airtight is a reinforcing bar surface layer Tu2 Shua antisepsis coating. 3 Crack processing The emergence of the crack not only would influence structure of whole with just degree, return will cause the rust eclipse of reinforcing bar, acceleration concrete of carbonization, lower durable and anti of concrete tired, anti Shen according to the property of crack and concrete circumstance we want differentiation to treat, in time processing, with assurance building of safety usage. The repair measure of the concrete crack is main to have the following some method:Surface repair method, infuse syrup, the Qian sew method, the structure reinforce a method, concrete displacement method, electricity chemistry protection 2021級(jí)工程管理專業(yè)英語(yǔ)科技文獻(xiàn)翻譯 14 method and imitate to living from heal method. Surface repair the method be a kind of simple, familiar of repair method, it main be applicable to stability and to structure loading the ability don39。t have the surface crack of influence and deep enter crack of processing measure that is usually is a surface in crack daubery cement syrup, the wreath oxygen gum mire or at concrete surface Tu2 Shua paint, asphalt etc. antisepsis material, at protection of in the meantime for keeping concrete from continue under the influence of various function to open crack, usually can adoption the surface in crack glue to stick glass fiber cloth etc. measure. Infuse syrup, the Qian sew method Infuse a syrup method main the concrete crack been applicable to have influence or have already defend Shen request to the structure whole of repair, it is make use of pressure equipments gum knot the material press into the crack of concrete, gum knot the material harden behind and concrete formation one be whole, thus reinforce of in mon use gum knot material has the cement the syrup, epoxy, A Ji C Xi sour ester and gather ammonia ester to equalize to learn material. The Qian sew a method is that the crack be a kind of most in mon use method in, it usually is follow the crack dig slot, the Qian fill Su in the slot or rigid water material with attain closing crack of in mon use Su material has PVC gum mire, plastics ointment, the D Ji rubber etc.。In mon use rigid water material is the polymer cement sand syrup. The structure reinforce a method When the crack influence arrive concrete structure of function, will consideration adopt to reinforce a method to carry on processing to the concrete structure reinforce medium in mon use main have the following a few method:The 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 reinforce, increase to establish fulcrum to reinforce and jet the concrete pensation reinforce. Concrete displacement method Concrete displacement method is processing severity damage concrete of a kind of 2021級(jí)工程管理專業(yè)英語(yǔ)科技文獻(xiàn)翻譯 15 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. 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。s withdrawing a method, alkalescence to recover a method is a chemistry protection method in three kinds of in mon use but valid advantage of this kind of method is a protection method under the influence of environment factor smaller, apply reinforcing bar, concrete of longterm antisepsis, since can used for crack structure already can also used for new set up structure. Imitate to living from legal more Imitate to living from heal the method be a kind of new crack treatment, its mimicry living creature anization secrete a certain material towards suffering wound part auto, but make the wound part heal of function, join some and special position(such as contain to glue knot of the liquid Xin fiber or capsule) in the concrete of the tradition the position, at concrete inner part formation the intelligence type imitate to living from heal nerve work system, be the concrete appear crack secrete a parts of liquid Xin fiber can make the crack re heal. 4 Conclusion The crack is widespread in the concrete structure existence of a kind of phenomenon, it of emergence not only will lower the anti Shen of building ability, influence building of usage function, and will cause the rust eclipse of reinforcing bar, the carbonization of concrete, lower the durable of material, influence building of loading ability, so want to carry on to the concrete crack earnest research, differentiation treat, adoption reasonable of the method carry on processing, and at under construction adopt various valid of prevention measure to preventi