粉煤灰自保温空心砌块砌体抗压性能试验研究
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摘要
粉煤灰自保温空心砌块是一种新型非承重墙体材料,为使其得到推广应用,进行了空心砌块砌体抗压性能试验,分析了砌体裂缝开展及破坏过程,得到了抗压强度和弹性模量的建议计算公式,以及泊松比建议值。试验结果表明:粉煤灰空心砌块砌体的受压破坏过程及特征与其他砌块砌体类似,但具有更大的脆性;抗压强度、弹性模量均小于普通混凝土空心砌块砌体,泊松比取值偏大。
Fly-ash thermal insulation hollow block is a kind of new material for non-load-bearing walls.In order to promote the application of this new material in buildings of seismic area,compressive mechanical performance of fly-ash thermal insulation hollow block masonry was tested and crack and failure progress was analyzed.From the test,the recommended formula of compressive strength and elastic modulus and recommended value of Poisson's ratio was received.The test results show that the failure processes and characteristics of the fly-ash thermal insulation hollow block masonry in compression are similar to that of the other block masonry,however the fly-ash thermal insulation hollow block masonry tend to fail in brittle manner.The compressive strength and elastic modulus are all less than that of the common hollow concrete block masonry,but Poisson's ratio is bigger.
Fly-ash thermal insulation hollow block is a kind of new material for non-load-bearing walls.In order to promote the application of this new material in buildings of seismic area,compressive mechanical performance of fly-ash thermal insulation hollow block masonry was tested and crack and failure progress was analyzed.From the test,the recommended formula of compressive strength and elastic modulus and recommended value of Poisson's ratio was received.The test results show that the failure processes and characteristics of the fly-ash thermal insulation hollow block masonry in compression are similar to that of the other block masonry,however the fly-ash thermal insulation hollow block masonry tend to fail in brittle manner.The compressive strength and elastic modulus are all less than that of the common hollow concrete block masonry,but Poisson's ratio is bigger.
引文
[1]孙伟民,戴薇原,郭樟根,等.新型节能复合混凝土空心砌块砌体抗震性能的试验研究[J].地震工程与工程振动,2006,26(5):136-143
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[3]GB/T 4111-1997.混凝土小型空心砌块试验方法[S].北京:中国建筑工业出版社,1997
[4]JGJ/T 70-2009.建筑砂浆基本性能试验方法标准[S].北京:中国建筑工业出版社,2009
[5]GBfr 50129-2011.砌体基本力学性能试验方法标准[S].北京:中国建筑工业出版礼,2011
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[7]GB50003-2011,砌体结构设计规范[S].北京:中国建筑工业出版社,2011
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[2]吴方伯,陈伟,黄海林,等.新型混凝土横孔空心砌块砌体受压性能研究[J].湖南大学学报(自然科学版),2010,37(11):1-5
[3]GB/T 4111-1997.混凝土小型空心砌块试验方法[S].北京:中国建筑工业出版社,1997
[4]JGJ/T 70-2009.建筑砂浆基本性能试验方法标准[S].北京:中国建筑工业出版社,2009
[5]GBfr 50129-2011.砌体基本力学性能试验方法标准[S].北京:中国建筑工业出版礼,2011
[6]林超,郭子雄,黄群贤,等.不同新型墙材砌体的力学性能对比分析[J].华侨大学学报(自然科学版),2012,33(5):552-556
[7]GB50003-2011,砌体结构设计规范[S].北京:中国建筑工业出版社,2011
[8]孟凡晓,祝英杰,臧晓光,等.高强混凝土空心砌块砌体基本力学性能研究[J].青岛理工大学学报,2007,28(1):10-13
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