新型泡沫混凝土复合砌块的应用研究

发布时间：2018-05-29 05:21

本文选题：砌块 + 新型墙体材料　；参考：《长沙理工大学》2013年硕士论文

【摘要】：目前，全球的能源问题日益严峻，，关于如何更好地利用与节约能源成了专家与学者所关注的问题。单一材料的砌块形式很难满足建筑节能保温方面越来越苛刻的要求，因此新型保温砌块的提出与发展迫在眉睫。通过采用不同材料复合这种形式，充分利用不同材料的优点，成为了新型保温砌块发展的新思路。本文总结了大量现有新型复合保温砌块的构造形式，通过观察对比发现大多数新型砌块构造上都没有很好的阻断热桥，大大降低了砌块的保温性能。因此本文提出一种“三明治”形式的新型复合夹芯砌块（下文简称FCB砌块），其两侧采用普通混凝土板，芯材采用低密度泡沫混凝土，彻底的阻断了砌块内的热桥；以普通混凝土板来提供砌块的强度，而泡沫混凝土则提供砌块优秀的热工性能。针对FCB砌块的构造特点，参照现行相关标准对墙体材料的试验方法，对其进行大量的试验与研究。通过抗压强度试验、两向抗折强度试验、劈裂抗拉强度试验以及连接性能试验来评定FCB砌块的力学性能；通过测量砌块密度、含水率以及计算与预测FCB砌块的热工性能来评定FCB砌块的基本物理性能；通过软化性试验、抗冻性试验以及干燥收缩试验来评定FCB砌块的耐久性；通过砌体抗压强度试验、砌体沿通缝抗剪强度试验以及膨胀螺栓拉拔强度试验来评定FCB砌块的使用性；并针对实验中所出现的问题，提出了针对FCB砌块的改进措施。同时为使FCB砌块能够更好在工程中得到运用与推广，总结了其在工程使用中的一些建议，并总结并编制了该砌块的工程施工构造图集。
[Abstract]:At present, the global energy problem is becoming more and more serious. Experts and scholars pay close attention to how to make better use of and save energy. The single material block form is difficult to meet the increasingly demanding requirements of building energy conservation and thermal insulation, so it is urgent to propose and develop the new thermal insulation block. It is a new idea for the development of new insulation block to make full use of the advantages of different materials by using different materials. This paper summarizes a large number of existing structural forms of new composite thermal insulation blocks, and through observation and comparison, it is found that the thermal bridges are not blocked well in most of the new blocks, which greatly reduces the thermal insulation performance of the blocks. Therefore, this paper presents a new type of sandwich block (hereinafter referred to as FCB block), which uses ordinary concrete slab on both sides and low density foam concrete on both sides of the block, which completely blocks the hot bridge in the block. Ordinary concrete slabs are used to provide the strength of blocks, while foam concrete provides excellent thermal properties of blocks. According to the structural characteristics of FCB block, a large number of tests and studies have been carried out on the wall material according to the existing test methods of relevant standards. The mechanical properties of FCB block were evaluated by compressive strength test, two-direction flexural strength test, splitting tensile strength test and connection performance test, and the density of block was measured. The basic physical properties of FCB block are evaluated by moisture content and the thermal performance of FCB block, the durability of FCB block is evaluated by softening test, freezing resistance test and drying shrinkage test, and the compressive strength test of masonry, The shear strength test along the opening joint of masonry and the tensile strength test of expansion bolt are used to evaluate the serviceability of FCB block, and the improvement measures for FCB block are put forward in view of the problems in the experiment. At the same time, in order to make FCB block better be applied and popularized in engineering, some suggestions in engineering application are summarized, and the construction map of this block is summarized and compiled.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU522.3

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