关于新型膨胀超细水泥泥泥的性能和工程应用的研究
Xiao Feng1, Xiaowei Cao2, Lianghao Li1
1School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, China.
Materials (Basel, Switzerland)
|November 27, 2024
概括
新型膨胀性超细水泥泥被开发出来,以解决出血和设置时间等问题. 这些增强的泥显示出强度的提高和体积的显著扩张,可以有效地加强层和修复建筑物.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 建筑技术 建筑技术 建筑技术
背景情况:
- 超精细水泥具有很高的性,耐用性和粘合强度,使其适用于增强,维修和环境工程.
- 传统的超细水泥泥面临着诸多挑战,包括高出血率,延长定时间和整合体体的体积收缩.
研究的目的:
- 开发新的膨胀超细水泥泥,以改善建筑维修和层层增强的性能.
- 分析膨胀剂 (UEA),减水剂 (FDN-C) 和加速剂 (TIPA) 对泥流动性,定时间,强度和体积膨胀的影响.
主要方法:
- 研究了不同比例的超细水泥与膨胀剂UEA,烯基减水剂FDN-C和三烯胺加速剂TIPA.
- 评估了泥的特性,包括出血率,流动性,初始设置时间,压力强度和体积膨胀率.
- 在现场进行水和砂层的处理,以评估在现实条件下的性能.
主要成果:
- 随着加速剂剂量增加,初始设置时间减少了多达33.68%.
- 合并体的压力强度增加,在三天后达到8.11 MPa,在28天后达到6.93 MPa.
- 新型泥的体积膨胀率从负 (传统) 转变为正 (0.41%-1.33%),显著改善了层层不透性.
结论:
- 开发的膨胀超细水泥泥有效缓解出血和设置时间的问题.
- 这些新型泥具有增强的压力强度和显著的体积膨胀,对于结构完整性至关重要.
- 该材料在层层增强和建筑维修方面展示了实际应用,其证据是提高了层层不透性和检查孔的成功率.
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