大孔轻质保温砌块的研发

发布时间：2018-11-09 16:34

【摘要】：大孔轻质保温块是一个以火山渣,砂子为主要原料,以水泥为胶凝材料,经搅拌、振动、加压成型的轻质保温砌块。该砌块的块型及材料在国内均为首次提出,因此,相关研究资料、规范及技术指标较少。根据我国建筑节能现状,本文进行了砌块材料配合比设计和砌块加工生产方面的研究。对砌块墙体的热工性能、隔声性能、抗结露性能和抗裂性能等进行了分析,并给出了相关结论和建议。论文主要成果如下：1.本文以水泥、砂子、火山渣为主要原料,通过选用不同的混凝土配合比进行砌块抗压强度试验,确定了强度等级为MU5级,密度等级为1000级的砌块的混凝土配合比,该砌块适用于建筑外墙的填充墙及潮湿状态下的建筑内墙,但不得用于建筑的承重墙。本文给出了砌块强度为4.4MPa,砌块密度等级为800的砌块的混凝土配合比。以上两种砌块的混凝土配合比均需进一步调整,提高砌块的强度；2.确定了大孔砌块的生产工艺和JK泡粒混凝土的浇筑工艺。对大孔砌块生产过程中的材料选择、混凝土搅拌工艺、成型过程进行了分析,提出了可供选择的养护工艺并给出了砌块质量控制要求。对浇筑后泡粒混凝土的大孔砌块进行了抗压强度试验并进行了分析；3.本文对大孔砌块墙体的热工、隔声、抗裂等性能进行了分析,可以得出：密度等级为1000的大孔砌块砌筑的墙体可以满足寒冷地区4层以上建筑的热工性能要求,其他性能满足规范要求；密度等级为800的大孔砌块热工性能满足严寒地区(C)9层以上建筑的要求,不能满足严寒地区(C)4-8层建筑的热工性能要求。对大孔砌块墙体的隔声性能进行了理论分析。通过计算最小热阻分析了大孔砌块墙体的抗结露性能。
[Abstract]:Macroporous lightweight thermal insulation block is a light thermal insulation block with volcanic slag sand as the main raw material and cement as the cementitious material after stirring vibration and pressure forming. The block type and material of this block are proposed for the first time in China, therefore, there are few related research materials, specifications and technical indexes. According to the present situation of building energy saving in our country, this paper studies the design of mix proportion of block materials and the manufacture and production of block. The thermal performance, sound insulation, dew resistance and crack resistance of block wall are analyzed, and the relevant conclusions and suggestions are given. The main achievements are as follows: 1. In this paper, cement, sand and volcanic slag are used as the main raw materials, and the concrete mix ratio of concrete blocks with MU5 grade and density grade 1000 is determined by selecting different mix ratio of concrete to carry out compressive strength test of block. The block is suitable for filling walls of external walls and interior walls under damp conditions, but shall not be used for load-bearing walls of buildings. In this paper, the concrete mix ratio of concrete blocks with a strength of 4.4 MPA and a density grade of 800 is given. The concrete mix ratio of the above two blocks needs to be further adjusted to improve the strength of the block; 2. The production technology of macroporous block and the pouring technology of JK foamed concrete are determined. The material selection, concrete mixing process and forming process in the production process of large-hole block are analyzed. The optional maintenance technology is put forward and the quality control requirements of the block are given. The compressive strength test and analysis of the macroporous concrete blocks after pouring are carried out. 3. In this paper, the thermal, sound insulation and crack resistance properties of large hole block wall are analyzed. It is concluded that the wall built by large hole block masonry with density grade 1000 can meet the thermal performance requirements of buildings above 4 stories in cold area. Other performance meets the specification requirements; The thermal performance of the large-hole block with density grade 800 can meet the requirements of (C) 9-storey buildings in severe cold areas, and cannot meet the thermal performance requirements of (C) 4-8-story buildings in severe cold areas. The sound insulation performance of large-hole block wall is theoretically analyzed. By calculating the minimum thermal resistance, the anti-condensation performance of large-hole block wall is analyzed.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU522.3

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