目 录
中文摘要............................................................Ⅰ
Abstract............................................................Ⅱ
1 绪 论 1
1.1 基本概念及使用范围的界定 1
1.1.1 概述 1
1.2 本课题研究的背景与意义 2
1.2.1背景 2
1.2.2 意义 3
1.2.3本课题的研究方法及理论依据 3
1.3课题的研究范围及本文所作的内容 5
2 国内外大流动砂浆材料的发展 6
2.1国内大流动砂浆材料的发展 6
2.2国外大流动砂浆材料的发展 6
3 砂浆组成及其力学性能关系 8
3.1砂浆的组成材料及性能 8
3.1.1组成材料 8
3.1.2材料性质 8
3.2辅助材料性质分析 11
3.2.1减水剂 11
3.2.2粉煤灰 13
3.2.3 增稠剂 14
3.3砂浆材料组成与其力学性能的关系 15
3.3.1减水剂 15
3.3.2粉煤灰 16
4 砂浆流动性的实验研究 19
4.1实验准备 19
4.2实验过程及实验结果 20
4.2.1砂浆配合比对砂浆流动性的影响 21
4.2.2砂的最大粒径对砂浆流动性的影响 22
4.2.3减水剂种类及掺量对砂浆流动性的影响 24
4.2.4胶对砂浆流动性的影响 26
4.2.5粉煤灰对砂浆流动性的影响 29
4.2.6增稠剂对砂浆流动性的影响 31
5 结论 35
致 谢 36
参考文献 37
Abstract
In the constructive projects, building mortar is a very wide used building material. Abroad has achieved to produce a more functional, more various, more serial mortar products. The self-leveling cement mortar is a new material which appeared international in the early of 1980s.
The self-leveling cement mortar is mainly used in the floor work. It can develop into a very flat and hardwearing surface after hardened. It can be pumped work, save labors and working fee and can improve working efficiency and quality.
Above all, good fluidity is a fundamental character of the self-leveling cement mortar. The article mainly discussed about the impact of the kind and dosage of the admixture (such as water-reducing admixture, stiffness admixture and so on), the formulation of the cement mortar, the grading of sands on the fluidity of mortar. It concluded the laws that effected fluidity through testing the stiffness, the spreading and the strength.
Key words: mortar fluidity admixture strength
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