混凝土表面点状爆裂问题案例分析  

Case Analysis of Single Point Burst on Concrete Surface

作　　者：常慧 Chang Hui(Shanghai Jianke Technical Assessment of Construction Co.Ltd.,Shanghai 201108)

机构地区：[1]上海建科检验有限公司,上海201108

出　　处：《江西建材》2024年第8期284-287,共4页

摘　　要：文中针对某项目混凝土表面出现大面积点状爆裂现象,通过现场取样对病害部位混凝土进行强度体积稳定性和X射线荧光成分分析(XRF)等项目检测和分析,结果表明,病害部位存在游离氧化钙(f-CaO)的潜在危害,而f-CaO较大可能是不合格钢渣所致。A large area of concrete surface point like cracking occurred in a certain project's concrete structure.Through on-site sampling,strength volume stability and X-ray fluorescence composition analysis(XRF)tests were conducted on the affected concrete.The results showed that there is a potential danger of free calcium oxide in the affected area,and the large amount of free calcium oxide may be caused by the use of unqualified stel slag in the concrete.

关 键 词：混凝土 点状爆裂 F-CAO 钢渣 

分 类 号：TU528[建筑科学—建筑技术科学]