加气混凝土砌块填充墙裂缝成因及防裂措施

发布时间：2018-06-07 09:49

本文选题：混凝土砌块 + 裂缝　；参考：《青岛理工大学》2013年硕士论文

【摘要】：建筑砌块是现代建筑工程不可缺少的材料,其经由现代工艺,由各种非粘土材料制成。现在主要使用的建筑砌块主要有混凝土砌块、无熟料水泥煤渣混凝土砌块、加气混凝土砌块、轻集料混凝土砌块、蒸气养护的粉煤灰硅酸盐砌块等。随着现代建筑业的不断发展和对建筑速度、质量要求的提高,建筑砌块具有越来越重要的意义和作用。加气混凝土砌块是现在建筑业经过经验积累和技术加工而开发的一种适应社会经济持续发展的新型墙体材料,被广泛用作非承重内外墙体。本文主要研究加气混凝土砌块施工后不同部位产生裂缝的情况,分析其变形特性以及施工工艺对加气混凝土砌块墙体稳定性的影响。通过优化加气混凝土砌块施工工艺,进一步规范加气混凝土砌块施工质量控制,探求加气混凝土砌块填充墙裂缝产生的成因,为加气混凝土砌块的推广和应用提供条件。并根据我公司与青岛理工大学合作进行具体实验所得到的相关数据,提出相应的解决裂缝产生的措施。首先,本文通过对我公司施工的若干个在建项目进行调研,了解设计要求、施工工序及工艺措施,指出各工程施工中存在的缺陷,找出造成加气混凝土砌块填充墙产生裂缝的部位,分析加气混凝土砌块填充墙产生裂缝的原因。课题结合调查结果从加气混凝土墙体裂缝可能产生的原因入手,联合青岛理工大学实验室对本次试验所用的蒸压加气混凝土砌块及其墙体进行物理力学性能试验,着重研究了加气混凝土砌块的出厂龄期、温度、湿度、含水率、受潮后的二次变形以及抹灰砂浆、砌筑砂浆等对加气混凝土砌块及墙体变形的影响。结合调查结果和实验测试结果,提出相应的墙体防裂设计构造措施和施工工艺措施,并对其经济成本的贡献性进行分析。
[Abstract]:Building block is an indispensable material in modern building engineering. It is made of various non-clay materials through modern technology. At present, the main building blocks used are concrete blocks, cement cinder concrete blocks without clinker, aerated concrete blocks, lightweight aggregate concrete blocks, steam cured fly ash silicate blocks and so on. With the continuous development of modern construction industry and the improvement of construction speed and quality requirements, building blocks have more and more important significance and function. Aerated concrete block is a new type of wall material developed by the construction industry through experience accumulation and technical processing. It is widely used as non-load-bearing internal and external wall. This paper mainly studies the situation of cracks in different parts of aerated concrete block after construction, analyzes its deformation characteristics and the influence of construction technology on the stability of aerated concrete block wall. Through optimizing the construction technology of aerated concrete block, the construction quality control of aerated concrete block is further standardized, and the causes of cracks in filled wall of aerated concrete block are explored, which provides conditions for the popularization and application of aerated concrete block. According to the relevant data obtained by the cooperation of Qingdao University of Technology and our company, the corresponding measures to solve the cracks are put forward. First of all, through the investigation and investigation of several projects under construction in our company, the design requirements, construction procedures and technological measures are understood, and the defects in the construction of various projects are pointed out. Find out the position of crack in aerated concrete block filling wall, and analyze the reason of crack in aerated concrete block filling wall. Based on the investigation results and the possible causes of cracks in the aerated concrete wall, the physical and mechanical properties of the autoclaved aerated concrete block and its wall used in this test are tested in conjunction with the laboratory of Qingdao University of Technology. The influences of age, temperature, humidity, moisture content, secondary deformation after moisture, plastering mortar and masonry mortar on the deformation of aerated concrete block and wall are studied emphatically. Combined with the results of investigation and test, the paper puts forward the corresponding design and construction measures of wall crack prevention, and analyzes the contribution of its economic cost.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU754;TU765

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