氧化镁膨胀剂在海工混凝土中的应用  

Application of Magnesia Expansion Agent in Marine Concrete

作　　者：储腾跃 闵强 徐可 纪宪坤 曹华 

机构地区：[1]武汉固立达建筑科技有限公司,湖北武汉430083 [2]武汉源锦建材科技有限公司,湖北武汉430083 [3]武汉三源特种建材有限责任公司,湖北武汉430083

出　　处：《混凝土世界》2022年第9期79-81,共3页China Concrete

摘　　要：针对高温高湿环境中混凝土开裂严重的现象,以地处热带某护岸加高工程为例,通过对比空白混凝土与掺加氧化镁膨胀剂的补偿收缩混凝土,观察研究了混凝土的裂缝发展情况。结果表明,使用氧化镁膨胀剂配制的补偿收缩混凝土,很好地补偿了混凝土的收缩,抑制了裂缝的产生与发展,对混凝土的抗裂起到了较好的效果。In view of the serious phenomenon of concrete cracking in high temperature and humidity environment,taking a bank revetment heightening project located in the tropics as an example,the development of concrete cracks was observed and studied by comparing the blank concrete with the shrinkage compensating concrete mixed with magnesium oxide expansion agent.The results show that the shrinkage compensating concrete prepared with magnesium oxide expansion agent can compensate the shrinkage of concrete well,inhibit the generation and development of cracks,and has a good effect on the crack resistance of concrete.

关 键 词：海工混凝土 氧化镁膨胀剂 补偿收缩混凝土 混凝土裂缝控制 

分 类 号：P75[天文地球—海洋科学] TU528.042.4[建筑科学—建筑技术科学]