【作者】 吕春明；

【导师】 陆春阳；

【作者基本信息】 广西大学 ， 结构工程， 2002， 硕士

【摘要】 轻骨料混凝土是一种用量较大的新型混凝土，其密度在850kg／m~3至1950kg／m~3之间，由粘土陶粒，粉煤灰陶粒等粗骨料以及常用的砂，水泥，水等材料制作而成。它不但具有质轻的优点，还能提供普通混凝土的强度、抗裂度等力学性能。目前已广泛应用于桥梁以及各种工业民用建筑上。 目前，在广西有关轻骨料混凝土的研究正在起步。本论文是对以粘土陶粒作粗骨料的轻质混凝土板的受力性能进行试验研究。论文从四个方面进行研究：轻骨料混凝土板的正截面承载力，抗裂度，正常使用极限状态下的裂缝宽度和挠度计算。 试验研究结果说明，以南宁市福民节能保温陶粒制品厂生产的陶粒作粗骨料的轻质混凝土板，其受力性能与普通钢筋混凝土板没有什么差别，可以用于工程实际。本文还提出了陶粒混凝土施工中应注意的问题供施工参考。更多还原

【Abstract】 Lightweight aggregate concrete, weighting from 850kg/m3 to 1950kg/m3, is one of the extensively used concretes in the world. It is made of sand, cement and lightweight aggregate, etc. Some of the lightweight aggregates include pumice, stuff, expanded clays(haydite), etc. Lightweight aggregate concrete can provide the same strength as the normal concrete with less weight. At the same time, it has some special virtues that are different from normal concrete, such as high heat preservation, inherent fire resistance, etc.The search of lightweight aggregate concrete began at 70’s in our country. But there is still little experimental information about lightweight aggregate concrete in GuangXi Zhuang autonomous Region, so GuangXi Architectural Comprehensive Design & Research Institute combine with GuangXi University to experiment with this material. This paper bases on the experiment and researches the lightweight aggregate concrete from four aspects. Those include the load carrying capacity of the specimens in the limit state, the cracking load of the specimens, the crack width of the specimens and the deflection of the specimens.The experimental results show that there are few differences in the mechanical properties between normal concrete slabs and lightweight aggregate concrete slabs which are made by haydite as coarse aggregate. At the same time, the haydite concrete proved that it is available in practice. The article also proposes some means in the making of the haydite concrete.更多还原