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1、混凝土裂縫的成因與控制摘要混凝土的裂縫問題是一個(gè)普遍存在而又難于解決的工程實(shí)際問題。?本文從設(shè)計(jì)、材料、配合比、施工現(xiàn)場養(yǎng)護(hù)等方面對混凝土工程中常見的一些裂縫的成因進(jìn)行了分析探討。針對混凝土裂縫產(chǎn)生的原因，在混凝土結(jié)構(gòu)設(shè)計(jì)、混凝土材料選擇、配合比優(yōu)化、以及施工現(xiàn)場的養(yǎng)護(hù)等方面提出了控制裂縫發(fā)展的措施。?依據(jù)相關(guān)文獻(xiàn)，并總結(jié)了混凝土裂縫的處理方法：表面處理法、填充法、灌漿法、結(jié)構(gòu)補(bǔ)強(qiáng)法、混凝土置換法、仿生自愈合法等。???關(guān)鍵詞：混凝土；?裂縫；?成因；控制；AbstractThe?problem?o
2、f?the?concrete?crack?is?a?common?and?difficult?to?solve?practical?engineering?problem.?In?this?paper,?from?the?design,?material,?mix?ratio,?construction?site?maintenance?and?other?causes?of?common?cracks?in?concrete?engineering?are?discussed.?Reasons?f
3、or?concrete?cracks,?the?concrete?structure?design,?material?selection,concrete?mix?design,?and?construction?site?maintenance?and?other?aspects?of?the?development?of?the?crack?control?measures.?According?to?the?related?literature,?and?summarized?the?tre
4、atment?method?of?concrete?crack:?surface?treatment?method,?filling?method,?grouting?method,?structure?method?of?reinforcement,?concrete?replacement?method,?bionic?self-healing.???Keywords:?concrete;?crack;?cause;?control;目錄摘要?··························
5、·······················?IAbstract?·············································??II?1??概述?···············································?1?1.1?課題的提出?........................................?1?1.2?本論文的研究內(nèi)容?........................··········?1?1.3本論文的研究
6、方法?...................................?1?2??裂縫的成因?··························.............32.1?設(shè)計(jì)原因?.........................................?3?2.2?材料原因?..........................................?3?2.3?混凝土配合比設(shè)計(jì)原因?.........................?4?2.4?施工及現(xiàn)場養(yǎng)護(hù)原
7、因?...........................?4?2.5使用原因(外界因素)?.......................?4?3??裂縫的控制措施?························?6?3.1?設(shè)計(jì)方面?.................................?6?3.1.1?設(shè)計(jì)中的‘抗’與‘放’?....................?6?3.1.2盡量避免結(jié)構(gòu)斷面突變帶來應(yīng)力集中?..............?6?3.1.3采用補(bǔ)償收縮混凝土技術(shù)?
8、................?6?3.1.4?設(shè)計(jì)上要注意容易開裂部位?.........?6?3.2?材料選擇?...........................?7?3.3?混凝土配合比設(shè)計(jì)?....................?7?3.4?施工方面?.............................?8?3.4.1?模板的安裝及拆除?................?8?3.4.2?混凝土的制備?.............?8?3.4.3?混
