GT抗裂剂性能研究  

Study of the Performance of GT Anti-cracking Agent

作　　者：路永华[1] 邵运达[1] 张普[1] 项道阳[1] 张力俊[2] 

机构地区：[1]北京工业大学建筑工程学院,北京100022 [2]中国建筑材料科学研究院,北京100024

出　　处：《北京工业大学学报》2007年第2期166-169,共4页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(50408004)

摘　　要：针对混凝土开裂的原因,研究了一种GT混凝土抗裂剂,以达到改善混凝土的抗裂性能同时避免或减轻混凝土开裂的目的．GT抗裂剂是由CSA高效膨胀剂与聚合物按一定比例复合而成的．研究了掺加GT高效抗裂剂胶砂试件的力学性、胀缩性等与抗裂相关的性能．结果表明,GT抗裂剂是一种比较理想的抗裂材料,对抑制砂浆开裂效果显著．Allusion to the crack of concrete, the authors studied on GT anti-cracking agent to improve the character of anti-cracking or release the crack of the concrete. GT anti-cracking agent is a novel concrete anticracking agent made of CSA high efficiency expansive agent and polymer at a certain ratio. Experiments have been done to investigate the anti-cracking related properties such as the mechanical properties, shrinkage, expansion, early age shrinkage of the mortar specimens with the addition of GT anti-cracking agent. The results demonstrat that GT anti-cracking agent is an optimistic anti-cracking material and has a remarkable effect on suooressing the cracks of cement mortar.

关 键 词：膨胀剂 胀缩性 抗裂剂 

分 类 号：TU528[建筑科学—建筑技术科学]