橡胶粉掺量对砂浆强度的影响

论文编号:TM145   论文字数:24076,页数:43

 摘 要

 本论文首先介绍了当前国内外外墙外保温发展现状以及应用状况，接着阐述固体废弃物在外墙外保温中用作保温砂浆掺料的应用情况，同时提出以废旧轮胎再加工后为掺料的橡胶混凝土的性能以及当前的发展现状，以环保和节能为出发点，介绍橡胶水泥砂浆在外墙外保温中用作保温砂浆的可行性和作用机理。通过一系列的试验表明掺入橡胶粉的砂浆试块的抗压强度、抗折强度有所降低，但同时添加适量的甲基纤维素醚以及木质纤维素，可以提高砂浆的保水性和工作性，从而减少橡胶砂浆的抗压强度和抗折强度的下降值。

关键词：橡胶砂浆；外墙外保温；抗压抗折强度；甲基纤维素醚；木质纤维素

Abstract

 This article firstly introduces the currently development status and the application status of exterior insulation around the world. Then it elaborates the application of solid waste used on exterior insulation as the admixture of insulation mortar. At the same time, it introduces the performance and the currently development status of rubber concrete, which uses the reprocessed waste tires as its admixture. Starting the point at the environmental protection and energy conservation, it introduces the feasibility and mechanism of rubber cement used on exterior insulation as insulation mortar. A series of tests indicate that the compressive strength and the flexural strength of mortar blocks which incorporate rubber are reduce to some extent. However, adding some methyl cellulose ether and lingo-cellulose at the same time can increase the water retention and performance of mortar, so it can decrease the drop of value of the compressive strength and the flexural strength of rubber mortar.   

Keywords：rubber mortar; exterior insulation; compressive strength and flexural strength; methyl cellulose ether; lingo-cellulose

目  录
中文摘要 I
英文摘要 II
目录 III
1 绪论 1
 2  外墙外保温 1
 2.1 外墙外保温发展概况及组成体系 1
 2.2 固体废弃物在外墙外保温中的利用 4
3 废旧橡胶粉的应用现状 5
 3.1 废旧轮胎橡胶粉的分类 5
  3.2 我国橡胶粉的应用状况 5
  3.3 国外利用废旧轮胎的多样性 9
4 橡胶混凝土的性能及发展现状 10
  4.1 橡胶混凝土概述 10
  4.2 橡胶混凝土性能 10
        4.2.1 工作性能 11
        4.2.2 物理性能 11
        4.2.3 抗疲劳性能 13
        4.2.4 抗冲击性能 13
        4.2.5 减震性能 14
        4.2.6 隔声性能 14
 5 橡胶水泥砂浆的外墙外保温作用机理 14
 6 外掺料对橡胶混凝土性能的影响 15
  6.1 纤维素醚 16
  6.2 减水剂 17
  6.3 木质纤维素 18
7 实验设计 20
 7.1 试验原材料 20
 7.2 试验配合比 22
 7.3 试件制作及养护 23
8 橡胶砂浆的力学性能 23
 8.1 抗折强度试验 23
 8.2 抗压强度试验 29
 8.3 总结 34
9 总结与展望 35
 9.1 本文总结 35
 9.2 展望 36
致谢 37
参考文献 38