硅酸盐学报2012，Vol.40Issue(8)：1139-1142,4.
高贝利特水泥混凝土的断裂韧性
Fracture Toughness of High Belite Cement Concrete
摘要
Abstract
The fracture toughness of high belite cement concrete was investigated. For this purpose, three-point bend tests were carried out on high belite cement concrete and silicate cement concrete, respectively. The double-K fracture parameters were determined. The fracture energy of high belite cement concrete was analyzed based on a pressure---crack-mouth-opening-displacement curve. The results reveal that there is more area covered by the pressure---crack-mouth-opening-displacement curve of high belite cement con- crete than that of silicate cement concrete. This reflects that the high belite cement concrete has a higher adsorptive capacity of load energy and a greater fracture toughness. The fracture energy of high belite cement concrete is greater, resulting in that the initial frac- ture toughness and unstable fracture toughness are 1.17 times and 1.24 times as great as those of silicate cement concrete, respectively The fracture performance of high belite cement concrete is thus better than that of silicate cement concrete.关键词
高贝利特水泥混凝土/断裂参数/三点弯曲试验/断裂能Key words
high belite cement concrete/fracture parameters/three-point bend test/fracture energy分类
化学工程引用本文复制引用
王可良,隋同波,许尚杰,张文生,刘玲..高贝利特水泥混凝土的断裂韧性[J].硅酸盐学报,2012,40(8):1139-1142,4.基金项目
国家“十一五”科技支撑计划（2006BAJ03A09）资助项目 （）
