【作者】 姚栋才；

【导师】 彭家惠；

【作者基本信息】 重庆大学 ， 材料学， 2002， 硕士

【摘要】 砖由于施工方便、价格低廉等优点而在建筑中广泛应用。但随着建筑节能的发展，传统实心砖已不能满足保温的要求，为了更好地促进重庆市及周边地区建筑节能的开展，必须开发出满足保温要求的新型砖——多孔砖、空心砖。 论文首先针对传统实心砖存在的问题，从环境保护和资源综合利用出发，以页岩、煤矸石为原料制砖，通过页岩、煤矸石制砖中干燥、焙烧试验研究，总结了原料化学成份、颗粒粗细程度、干燥速度、含水率以及焙烧温度等因素对煤矸石多孔砖、空心砖性能的影响。通过ANSYS有限元应用软件对不同孔型、不同孔排列的多孔砖进行力学性能分析，找出影响多孔砖力学性能的因素；探讨了在一定尺寸条件下，多孔砖、空心砖的孔洞排列与孔洞率的变化对砖体传热性能的影响，以此改善砖体的抗压强度和隔热保温性能。最后，通过以上研究对多孔砖、空心砖的生产工艺提出适宜的生产参数，用以指导生产。 另外，论文通过对煤矸石页岩多孔砖砌体局部均匀受压试验，得出了煤矸石页岩多孔砖砌体的局部均匀抗压强度、均匀局压强度提高系数γ等指标。并和现行砌体结构设计规范中的相应指标进行比较，为煤矸石页岩多孔砖砌体结构设计提供依据。试验结果表明：煤矸石页岩多孔砖砌体的局部均匀抗压强度和现行规范中粘土砖相比，煤矸石页岩多孔砖砌体局部均匀抗压强度低于规范值，最后确定均匀局压强度提高系数γ的值≤1.5。更多还原

【Abstract】 Brick was widely applied to the buildings for its advantages of workability in project application and lower cost. However, with the development of energy conservation in buildings, traditional solid brick could not meet need of thermal insulation any longer. In order to promote the development of energy conservation in building in Chongqing and transitional districts, new type brick, perforated brick or hollow brick should be developed as soon possible.In order to overcome the disadvantages of traditional solid brick, to protect environment and to economize resources, the author first recommended the experimental study of drying and firing of Coalstore-shale Fired Perforated Brick. The result assumed the effect of percentage of water content, raw material fineness, temperature and insulation time on property of coalstore-shale perforated or hollow brick. The paper applies ANSYS finite program to analyse Coalstore-shale Fired Perforated Brick’s hole shape, and finds the factors that influence the strength of bricks. The author attempts to explore from the basic principle of heat transfer the effect of the changes of hole arrangements and hole ratios of the perforated (hollow) brick in certain dimensions on the thermal transition of the brick, and to improve the thermal insulation property of the brick on this basis. Finally, the proper parameter of product process is given to direct the production of coalstore-shale fired perforated or hollow brick.Through experiment of uniform local compression strength of Coalstore-shale Fired Perforated Brick Masonry (CFPBM), the author obtains the data of uniform local compression strength and coefficient (r) of uniform local compression of CFPBM. Meanwhile, through contrasting with Code of masonry structure design, the author provides some items for CFPBM structure. The result of experiment shows that uniform local compression strength of CSPBM belows the Code listing strength. At last, the value of Y is defined ≤1.5.更多还原