[1]张小刚,王学志,孙荣书,等.层面对带裂纹碾压混凝土强度断裂参数影响[J].深圳大学学报理工版,2007,24(3):240-245.
 ZHANG Xiao-gang,WANG Xue-zhi,SUN Rong-shu,et al.Effect of interface to strength and fracture parameters of RCC with cracks[J].Journal of Shenzhen University Science and Engineering,2007,24(3):240-245.
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层面对带裂纹碾压混凝土强度断裂参数影响()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第24卷
期数:
2007年3期
页码:
240-245
栏目:
土木建筑工程
出版日期:
2007-07-30

文章信息/Info

Title:
Effect of interface to strength and fracture parameters of RCC with cracks
文章编号:
1000-2618(2007)03-0240-06
作者:
张小刚1王学志2孙荣书2黄志强3
1)深圳大学土木工程学院,深圳市土木工程耐久性重点实验室 ,深圳 518060;
2)辽宁工学院土木建筑系,锦州 121001; 3.沈阳工业大学建筑工程学院,沈阳 110023
Author(s):
ZHANG Xiao-gang1WANG Xue-zhi2SUN Rong-shu2and HUANG Zhi-qiang3
1)College of Civil Engineering,Shenzhen Municipal Key,Laboratory on Durability of Civil Engineering,Shenzhen University Shenzhen 518060,P.R.China
2)Department of Civil Engineering,Liaoning Institute of Tecnology,Jinzhou 121001,P.R. China
3)School of Architecture,Shenyang University of Technology,Shenyang 110023,P.R.China
关键词:
碾压层面等效强度断裂韧度宏观裂纹碾压混凝土
Keywords:
rolled compacted interfaceequivalent strengthfracture toughnesscrackrolled compacted concrete
分类号:
TV 313;TU 528.01
文献标志码:
A
摘要:

研究层面对带裂纹碾压混凝土强度和断裂参数的影响,发现层面存在使等效强度随削弱度增大递减.单缝和双缝的削弱度分别为0.1、0.2和0.3时,其等效强度分别降低了13.37%、37.44%、46.96%和16.52%、25.46%、19.99%,表明层面对等效强度影响随削弱度的增加而加大,层面对单缝的影响比其对双缝的影响大.由于层面存在,层面间隔4 h,层面不作处理时,碾压混凝土断裂韧度降低了17.85%;层面间隔4 h,层面处理方式为铺10 mm的粉煤灰水泥砂浆时,断裂韧度降低5.67%.

Abstract:

The study discussed the effect of interface on the strength and fracture parameters of the RCC with cracks. The results show that the interface caused the decrease of equivalent strength with the increas of weakened degrees.The equivalent strengths of single saw specimens with weakened degrees of 0.1,0.2 and 0.3 decrease 13.37%,37.44% and 46.96%,and those of double saw specimens with the same weakened degrees decrease 16.52%,25.46% and 19.99%, respectively.It indicates that the influence of interface on the equivalent strength become greater with the increasing of weakened degrees,and the effects of interface on the single saw specimens are bigger than those of double saw specimens.Because there is an interface,fracture toughness of the rolled compacted concrete(RCC) decreases 17.85% in the case of four hours interval of interface and nonfreatmeat and 5.67% in the case of four hours interval of interface and 10 mm fly ash cement mortar laid on interface.

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更新日期/Last Update: 2007-12-06