装配式钢结构住宅中陶粒墙板配合比的理论与试验研究

发布时间：2018-05-12 01:00

  本文选题：钢结构住宅 + 陶粒混凝土　； 参考：《太原理工大学》2017年硕士论文

【摘要】：近年来,随着社会的不断进步,我国住宅产业正处于上升时期,每年新建的城乡住宅建筑面积均超过10多亿平方米。在老旧建筑拆除时,也制造了大量建筑垃圾,若能采用钢结构住宅体系则可实现标准化、产品化,组织进行工业化生产,节水、节地、节能、节材,符合环保要求及可持续发展等特点。目前缺乏与钢结构住宅配套的维护体系材料问题仍是限制其发展的主要因素。本文根据钢结构住宅结构体系特点,研发适合于钢结构住宅体系的围护材料。本文将以陶粒为粗骨料,自燃煤矸石人工砂或珍珠岩为细骨料,配制出满足钢结构住宅体系要求的轻骨料混凝土。主要内容如下:(1)以粒径为5mm-20mm的粉煤灰陶粒为粗骨料,试配出五种强度的混凝土,可以满足钢结构住宅不同跨度墙板的使用要求。(2)以混凝土满足和易性、强度的同时表观密度最小为目标,以粒径为5mm-30mm的页岩陶粒为粗骨料,通过15种配合比的对比试验,配制出表观密度不大于900kg/m~3超轻页岩陶粒混凝土。(3)将三种陶粒以不同体积掺量比例,以自燃煤矸石破碎、筛分得到自燃煤矸石人工砂或珍珠岩作为细骨料,掺入减水剂、增稠剂等外加剂,在混凝土满足和易性、强度的基础上,表观密度最小为目标,配制出一系列轻质高强的混凝土,并且探索不同材料对混凝土的影响。(4)考虑火灾发生,研究墙板材料—陶粒混凝土在高温下的力学性能。本文分别进行了陶粒混凝土在200℃与400℃下的耐火实验。
[Abstract]:In recent years, with the continuous progress of the society, the housing industry in China is on the rise, every year more than 1 billion square meters of new urban and rural residential building area. When the old buildings were demolished, a large amount of construction waste was also produced. If the steel structure housing system could be adopted, it could be standardized, produced, organized into industrial production, saved water, saved land, saved energy, and saved materials. Meet the requirements of environmental protection and sustainable development and other characteristics. At present, the shortage of maintenance system material for steel structure residence is still the main factor restricting its development. According to the characteristics of steel structure housing system, this paper develops an enclosure material suitable for steel structure housing system. In this paper, the lightweight aggregate concrete, which meets the requirements of steel structure housing system, is prepared with ceramsite as coarse aggregate, spontaneous combustion coal gangue artificial sand or perlite as fine aggregate. The main contents are as follows: (1) with fly ash and ceramsite of 5mm-20mm diameter as coarse aggregate, five kinds of strength concrete can be used to meet the use requirements of different span wall slabs of steel structure residence. At the same time, the minimum apparent density was taken as the target, and the shale ceramsite with particle size of 5mm-30mm was used as coarse aggregate. The apparent density is not greater than that of 900kg/m~3 ultra-light shale ceramsite concrete. (3) the three kinds of ceramsite are broken up with spontaneous combustion coal gangue in different volume ratio, and the artificial sand or perlite of spontaneous combustion coal gangue is obtained as fine aggregate and water reducing agent is added. On the basis of concrete satisfaction and easiness, strength and apparent density minimum, a series of lightweight and high strength concrete is prepared, and the influence of different materials on concrete is explored. The mechanical properties of wall slab material-ceramsite concrete at high temperature were studied. The fire resistance experiments of ceramsite concrete at 200 鈩，

本文编号：1876396