再生混凝土承重砌块试验研究
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摘要
通过对常用规格190单排孔再生混凝土砌块的试验研究,找出了影响其抗压强度的主要因素,在此基础上,开发了一种抗压强度较高的240三排孔再生混凝土砌块.通过试验选取几种优化配合比,240三排孔再生混凝土砌块的抗压强度分别能达到MU5.0、MU7.5及MU10.0强度等级,可用于承重及有抗震要求的砌体结构.由于三排孔再生混凝土砌块增加了热传导路径,还具有一定的保温性能.
From the test of the 190 single row recycled concrete hollow blocks,the effect of the main factors of recycled concrete hollow blocks is obviously identified.A new kind of 240 three-row hollow blocks is made on this basis.Its impressing strength can come up to MU5.0,MU7.5 and MU10.0 from the test of right mixture ratio.They can be used in bearing masonry structure and earthquake resistant masonry structure.As the three-row hollow blocks have longer heat conduction route,they have better thermal insulation performance.
From the test of the 190 single row recycled concrete hollow blocks,the effect of the main factors of recycled concrete hollow blocks is obviously identified.A new kind of 240 three-row hollow blocks is made on this basis.Its impressing strength can come up to MU5.0,MU7.5 and MU10.0 from the test of right mixture ratio.They can be used in bearing masonry structure and earthquake resistant masonry structure.As the three-row hollow blocks have longer heat conduction route,they have better thermal insulation performance.
引文
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[2]余晓峰,姚谦峰.再生混凝土密肋复合墙体受力性能试验研究[J].西安建筑科技大学学报:自然科学版,2009,41(12):827-830.YU Xiao-feng,YAO Qian-feng.Mechanical characteristics and analyses of seismic performance of multi-rib slabwall[J].J.Xi′an Univ.of Arch.&Tech.:Natural Science Edition,2009,41(12):827-830.
[3]FARID D,SAID K.The use of coarse and fine crushed bricks as aggregate in concrete[J].Construction and Build-ing Materials,2008,22(22):886-893.
[4]POON C S,LAM L.Use of recycled aggregates in molded concrete bricks and blocks[J].Construction and Build-ing Materials,2002,16(5):281-289.
[5]周贤文.再生骨料混凝土空心砌块的实验研究[J].混凝土,2007(5):89-91.ZHOU Xian-wen.Experimental study on application of recycled aggregates to produce concrete hollow blocks[J].Conrrete,2007(5):89-91.
[6]白国良,张锋剑,刘超,等.地震灾区重建大板组合装配结构体系房屋示范研究报告[R].西安:西安建筑科技大学,西安墙体材料研究设计院,2008.BAI Guo-ling,ZHANG Feng-jian,LIU Chao,et al.The research paper of assembling slabs structural systembuildings in rebuilding quake-hit area[R].Xi′an:Xi′an Research and Design Institute of wall&Roof Materials,Xi′an University of Architecture and Technology,2008.
[7]GB/T 4111-1997混凝土小型空心砌块试验方法[S].北京:中国标准出版社,2003.GB/T 4111-1997Test methods for the small concrete hollow block[S].Beijing:Standards Press of China,2003.
[8]GB 8239-1997普通混凝土小型空心砌块[S].北京:中国标准出版社,1997.GB 8239-1997Normal concrete small hollow block[S].Beijing:Standards Press of China,1997.
[9]GB5001-2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2008.GB5001-2001Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2008.
[10]GB/T15229-2002轻集料混凝土小型空心砌块[S].北京:中国标准出版社,1997.GB/T15229-2002Light aggregate concrete small hollow block[S].Beijing:Standards Press of China,1997.
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