| 水溶性聚合物对水泥浆体性能的影响 |
| |
| 引用本文： | 严亮,于翔,杨久俊,赵顺波,杨中正. 水溶性聚合物对水泥浆体性能的影响[J]. 混凝土, 2012, 0(3): 113-114,130 |
| |
| 作者姓名： | 严亮 于翔 杨久俊 赵顺波 杨中正 |
| |
| 作者单位： | 华北水利水电学院土木与交通学院;河南工程学院材料与化学工程系;天津城市建设学院材料工程系 |
| |
| 基金项目： | 国家自然科学基金资助项目(50972099) |
| |
| 摘 要： | 采用水溶性聚合物-聚丙烯酰胺对水泥浆体进行改性处理,对比分析了不同掺量的聚丙烯酰胺对新拌水泥浆体的凝结时间、标准稠度用水量、流动度的影响,以及对硬化水泥浆体力学性能的影响。研究结果表明:聚丙烯酰胺增加了水泥浆体标准稠度用水量,降低了水泥浆体的流动度,聚丙烯酰胺对水泥基复合材料的抗压强度无改善作用,但在其掺量为1%时,复合材料28 d的抗折强度提高了9.55%,而且随着其掺量的增加,复合材料的折压比呈增大趋势,其整体韧性得到改善。
|
| 关 键 词： | 聚丙烯酰胺 水泥浆体 性能 |
Effect of water soluble polymer on performance of cement paste |
| |
| YAN Liang,YU Xiang,YANG Jiu-jun,ZHAO Shun-bo,YANG Zhong-zheng. Effect of water soluble polymer on performance of cement paste[J]. Concrete, 2012, 0(3): 113-114,130 |
| |
| Authors: | YAN Liang YU Xiang YANG Jiu-jun ZHAO Shun-bo YANG Zhong-zheng |
| |
| Affiliation: | 1(1.School of Civil Engineering and Communication,North China Institute of Water Conservancy and Hydroelectric Power,Zhengzhou 450011,China;2.Department of Materials and Chemical Engineering,Henan Institute of Engineering,Zhengzhou 451191,China; 3.Department of Materials Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China) |
| |
| Abstract: | Cement paste was modified by water soluble polymer(polyacrylamide).The setting time,water requirement of normal consistency and fluidity of cement paste were analysed respectively with different amounts of polyacrylamide,and mechanical properties of harden cement paste were studied respectively.The results show that,water requirement of normal consistency of fresh cement paste was increased by polyacrylamide,and fluidity of fresh cement paste was also reduced,and the compressive strength of cement-based composite was not improved,however,the flexural strength of composite was increased by 9.55% on the 28 day,when the mixing amount of polyacrylamide is 1%,along with the increase of the admixture of polyacrylamide,the bend-press ratio of composite has an increase trend,and its overall toughness is improved. |
| |
| Keywords: | polyacrylamide cement paste performance |
| 本文献已被 CNKI 等数据库收录！ |
|
