在东北寒冷地区,对轻量级自绝缘混凝土造的基本机械性能进行实验研究
Bashir H Osman1, Zhongfan Chen2, Abu-Bakre A Elamin3
1Civil Engineering Department, College of Engineering, University of Sinnar, Sinnar, Sudan. bashir00@yahoo.com.
Scientific reports
|August 2, 2025
概括
这项研究优化了使用玄武岩羊毛的自绝缘混凝土块,提高了寒冷地区承载墙的压力和剪切强度. 新区块超过了标准要求,为农村建筑提供了更好的性能.
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.
- 建筑材料 建筑材料
背景情况:
- 优化自绝缘块的机械和热性能对于高效的建筑设计至关重要.
- 现有的混凝土造标准要求对新型复合材料进行验证.
研究的目的:
- 为了优化新型复合材料自绝缘混凝土块的混合比率和机械性能.
- 评估开发块在寒冷气候下适用于承载墙的适用性.
- 建立一个预测模型,用于新的块的压力强度的发展.
主要方法:
- 设计了16个直角实验来研究影响压力强度的因素 (沙子含量,水-水泥比率,矩阵密度).
- 加入玄武岩羊毛作为添加剂,以提高混合比率.
- 进行了机械性能测试,包括压力和剪切强度分析.
- 开发了一种公式来描述压力强度随时间的发展.
主要成果:
- 新的复合材料自绝缘块具有比现有的空心轻质聚合物混凝土块规定的更高的设计压力强度.
- 该块的压力强度适用于寒冷的东北农村地区的两层石承载墙.
- 与普通混凝土空心块的标准相比,在砂接头沿线的剪切强度显著增加.
- 一个拟议的方程准确地预测了新区块体的压力应变曲线.
结论:
- 开发的复合材料自绝缘混凝土块提供了卓越的机械性能和绝热性能.
- 新区块是一个可行的和改进的替代品,用于在寒冷的气候下承重造.
- 这些发现支持新区块在农村建筑中的应用,增强结构完整性和能源效率.
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