| 无荷载状况下泡沫混凝土裂缝控制的研究 |
| |
| 引用本文： | 何顺爱,朱晓燕,杨奉源,李瑞恒. 无荷载状况下泡沫混凝土裂缝控制的研究[J]. 新型建筑材料, 2011, 38(10) |
| |
| 作者姓名： | 何顺爱 朱晓燕 杨奉源 李瑞恒 |
| |
| 作者单位： | 四川省非金属复合与功能材料重点实验室,西南科技大学,四川绵阳621010 |
| |
| 基金项目： | 国家科技支撑计划项目(2011BAE14B05) |
| |
| 摘 要： | 研究了水胶比、粉煤灰、PP纤维和高性能膨胀剂对无荷载状况下泡沫混凝土力学性能、收缩性能的影响.结果表明,泡沫混凝土在水化中后期表现为收缩的特征；在水胶比为0.3～0.5时,水胶比越大,最终泡沫混凝土的收缩越小,当水胶比大于0.5或小于0.2时,28 d收缩量都减小.乱向分布的纤维可以略微减小泡沫混凝土的收缩；一定掺量的膨胀剂可以有效地补偿泡沫混凝土变形收缩,在水化早期实现泡沫混凝土无收缩.
|
| 关 键 词： | 泡沫混凝土 水胶比 收缩 膨胀 无荷载 裂缝控制 |
Study on control of foamed concrete crack in no-loading conditions |
| |
| HE Shun 'ai,ZHU Xiaoyan,YA NG Fengyuan,LI Ruiheng. Study on control of foamed concrete crack in no-loading conditions[J]. New Building Materials, 2011, 38(10) |
| |
| Authors: | HE Shun 'ai ZHU Xiaoyan YA NG Fengyuan LI Ruiheng |
| |
| Affiliation: | HE Shun'ai,ZHU Xiaoyan,YANG Fengyuan,LI Ruiheng(State Key Laboratory Cultivation Base for Nonmetal Composite and Function Materials,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China) |
| |
| Abstract: | In this paper,the influences of water to cement(W/C) ratio,fly ash,PP fiber and high performance expansive agent on foamed concrete's strength and shrinkage in non-loading condition were studied.The results show that foamed concrete appeared shrinking in the medium and later hydration process.When the W/C ratio is in rang of 0.3 to 0.5,the greater the ratio,the smaller the final contraction.In other hand,when W/C ratio exceeds 0.5 and less than 0.2,the final shrinkage were all decreased after 28 days.Foam c... |
| |
| Keywords: | foamed concrete water to cement ratio shrinkage expansive no-loading crack control |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
