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刁學優(yōu) （珠海市房屋安全鑒定所，珠海519015）
[摘要] 近年來，早強型水泥引起的混凝土結(jié)構(gòu)工程裂縫問題日漸突出。尤其是采用早強水泥和外加劑、養(yǎng)護不足且配筋不當?shù)谋盟蜕唐坊炷连F(xiàn)澆結(jié)構(gòu)早期裂縫明顯增多，對結(jié)構(gòu)耐久性的影響不容忽視。結(jié)合珠海地區(qū)的工程鑒定實踐對此予以閏釋。
[關(guān)鍵詞] 早強型水泥；外加劑；養(yǎng)護；混凝土結(jié)構(gòu)；早期裂縫；耐久性Reason analysis caused concrete structure crack
Diao Xueyou
(Zhuhai Buildings Appraisal Institute, Zhuhai 519015, China)
Abstract: Concrete structure crack problem caused by high-early-strength cement is outstanding recently. It is obvious that early crack of concrete structure of cast-in-place pumped-commodity concrete using high-early-strength cement and concrete admixture, and under improper curing and reinforcement. Influence over durability of concrete structure should not be ignored. The causes are discussed according to the engineering practice in Zhuhai.
Keywords: high-early-strength cement; concrete admixture; curing; concrete structure; early crack; durability
