混凝土建筑結(jié)構(gòu)裂縫控制的技術(shù)措施
游寶坤
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游寶坤 （中國建筑材料科學(xué)研究院 北京 100024）
[提要] 重點從混凝土干燥、溫差和自生收縮、減水劑的影響、混凝土后期膨脹等方面，分析了混凝土建筑結(jié)構(gòu)裂縫產(chǎn)生的各種原因。提出從材料、設(shè)計施工和維護方面進(jìn)行裂縫控制的技術(shù)措施?？晒氖鹿こ探Y(jié)構(gòu)設(shè)計和施工的工程技術(shù)人員參考。
[關(guān)鍵詞] 混凝土結(jié)構(gòu) 膨脹劑 補償收縮混凝土 裂縫控制The different reasons of cracks emergence in concrete buildings are analyzed especially in the aspects of dry shrinkage, temperature difference, self-shrinkage, affection of water-reducing agent, expansion during later period. The technical measures of crack control are presented from materials, design, construction and maintenance of structure. It can be referred for engineers in design and construction.
Keywords: concrete structure; expanding agents; shrinkage-compensated; crack conrol
