页岩烧结保温砌块砌体压、剪及其复合受力性能试验研究

发布时间：2018-03-25 19:09

本文选题：页岩烧结保温砌块砌体　切入点：专用砌筑砂浆　出处：《西安建筑科技大学》2013年硕士论文

【摘要】：我国资源相对贫乏，能源资源的长期供应面临着严峻挑战，特别是目前处于加速推进城镇化进程时期，能耗必然越来越高。因此在建筑领域节能降耗，发展绿色环保建筑材料，具有重大意义。页岩烧结保温砌块是一种满足单一墙体材料建筑节能65%要求的新型节能烧结类墙体材料。该砌块采用页岩为主要原材料，保温性能好，具有节约土地资源和降低能耗的双重效应。同时开发了与该砌块配套的专用砌筑砂浆，粘结性能良好，可实现该砌体结构薄灰缝的施工工艺。本文主要针对页岩烧结保温砌块砌体的抗压性能、通缝抗剪性能、剪压复合受力抗剪性能进行试验研究。（1）通过页岩烧结保温砌块及其专用砌筑砂浆的抗压试验研究，得到该类砌块及其专用砌筑砂浆的抗压强度。（2）通过页岩烧结保温砌块砌体抗压性能试验，掌握该类砌体发生受压破坏时的主要特征；根据试验结果分析提出页岩烧结保温砌块砌体的抗压强度平均值计算表达式，并给出了该类砌体抗压强度标准值及设计值的建议取值；结合本次试验数据，提出了页岩烧结保温砌块砌体应力—应变关系表达式，并给出了该类砌体弹性模量和泊松比的实测值。（3）通过页岩烧结保温砌块砌体通缝抗剪性能试验，掌握该类砌体发生通缝受剪破坏时的主要特征；根据试验结果分析得出页岩烧结保温砌块砌体的通缝抗剪强度平均值计算表达式，，并给出了该类砌体抗剪强度标准值及设计值的建议取值。（4）通过页岩烧结保温砌块砌体剪压复合受力抗剪性能试验，掌握该类砌体发生剪压复合受力受剪破坏时的主要特征；根据试验结果分析给出页岩烧结保温砌块砌体的剪压相关曲线，并与其他砌体剪压相关曲线进行了对比；经分析提出了页岩烧结保温砌块砌体剪压复合受力抗剪强度平均值、标准值、设计值的建议计算表达式。通过本文对页岩烧结保温砌块砌体抗压、通缝抗剪及剪压复合受力抗剪试验的研究，掌握了该类砌体的基本力学性能，为页岩烧结保温砌块砌体的后续研究及其相关规范、规程的制定提供了基本的力学性能参数。
[Abstract]:Our country is relatively poor in resources, and the long-term supply of energy resources is facing severe challenges, especially in the period of accelerating the urbanization process, the energy consumption is bound to be higher and higher. Therefore, in the field of construction, energy saving and consumption reduction, the development of green and environmentally friendly building materials, Shale sintered insulating block is a new type of energy saving sintered wall material which can meet the requirements of building energy saving of 65% single wall material. The block uses shale as the main raw material and has good insulation performance. It has the dual effect of saving land resources and reducing energy consumption. At the same time, the special masonry mortar matched with this block is developed, and the bond property is good. It is possible to realize the construction technology of the thin ash joint of the masonry structure. This paper mainly focuses on the shale-sintered insulating block masonry's anti-compression performance, the shear-joint shear resistance and the shear-compression composite shear resistance. 1) the compressive strength of this kind of block and its special masonry mortar is obtained by means of the compressive test study of the shale sintered insulating block and its special masonry mortar. (2) the main characteristics of shale-sintered insulating block masonry under compression failure are grasped through the compression performance test of shale sintered insulating block masonry, and the expression of average compressive strength of shale-sintered insulating block masonry is put forward according to the analysis of test results. The suggested values of compressive strength and design value of this kind of masonry are given, and the expression of stress-strain relationship of shale-sintered insulating block masonry is presented based on the test data. The measured values of elastic modulus and Poisson's ratio of this kind of masonry are given. (3) through shale-sintered insulating block masonry shear behavior test, the main characteristics of shale-sintered block masonry when shear failure occurs; According to the analysis of test results, the average value of shear strength of shale-sintered insulating block masonry is obtained, and the standard value and design value of shear strength of this kind of masonry are given. (4) the main characteristics of shear-compression composite shear failure of shale-sintered insulating block masonry under shear-compression are studied. The shear-compression correlation curves of shale sintered insulating block masonry are given according to the experimental results, and compared with those of other masonry blocks, and the average shear strength of shale-sintered insulating block masonry under shear compression is proposed. Standard value, design value of the recommended evaluation expression. Through the research of shale-sintered insulating block masonry under compression, joint shear and shear compression, the basic mechanical properties of this kind of masonry have been mastered, which is the follow-up study of shale sintered insulating block masonry and its related specifications. The formulation of the rules provides basic mechanical performance parameters.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU364

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