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| 高贝利特水泥混凝土的断裂韧性 | |
| 引用本文： | 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. |
| 作者姓名： | 王可良 隋同波 许尚杰 张文生 刘玲 |
| 作者单位： | 1. 山东省水利科学研究院,济南,250014 2. 中材国际工程股份有限公司,北京,100080 3. 中国建筑材料科学研究总院,北京,100024 4. 济南德利泰建材科技公司,济南,250010 |
| 基金项目： | 国家“十一五”科技支撑计划 |
| 摘 要： | 为研究高贝利特水泥混凝土的断裂性能,通过三点弯曲梁试验,比较了高贝利特水泥混凝土与硅酸盐混凝土的双K断裂参数。结合载荷–裂口张开位移曲线分析,探讨了高贝利特水泥混凝土的断裂能。结果表明：高贝利特水泥混凝土载荷–裂口张开位移曲线下覆盖的面积大于硅酸盐水泥混凝土,混凝土对载荷能量有较高的吸收能力,断裂能大,断裂韧度大;高贝利特水泥混凝土的起裂韧度和失稳韧度分别是硅酸盐水泥混凝土的1.17倍和1.24倍。高贝利特水泥混凝土的断裂性能优于硅酸盐水泥混凝土的。 |
| 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 |
Fracture Toughness of High Belite Cement Concrete |
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| WANG Keliang,SUI Tongbo,XU Shangjie,ZHANG Wensheng,LIU Ling.Fracture Toughness of High Belite Cement Concrete[J].Journal of The Chinese Ceramic Society,2012,40(8):1139-1142. | |
| Authors: | WANG Keliang SUI Tongbo XU Shangjie ZHANG Wensheng LIU Ling |
| Affiliation: | 1.Shandong Provincial Water Resources Research Institute,Jinan,250014,China;2.Sinoma International Engineering Co., Ltd.Beijing 100102,China;3.China Building Materials Academy,Beijing 100024,China;4.Jinan Delitai Building Materials Company,Jinan 250010,China) |
| 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. |
| Keywords: | high belite cement concrete fracture parameters three-point bend test fracture energy |
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