EXPERIMENTAL STUDY ON PROPERTIES OF STRENGTH AND DEFLECTION FOR STEEL FIBER REINFORCED SELF-COMPACTING CONCRETE AT EARLY-AGE

被引:0
作者
Liu, Gui-feng [1 ]
Chen, Zheng-fa [1 ]
机构
[1] Shandong Univ Technol, Jinan, Peoples R China
来源
PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON THE CONCRETE FUTURE | 2008年
关键词
steel fiber; self-compacting concrete; compressive strength; bending ability;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Based on some tests about the relationship between the age and the compressive strength, fracture ability, the properties of steel fiber reinforced self-compacting concrete(SFRSCC) are studied. Test ages are 12hours, 24hours, 3, 7 and 28 days. Based on the force-deflection relationship obtained from the three point bending notched beam tests, the stress-crack opening relationship of the SFRCC (sigma-w trilinear diagram) was determined, the influence of distinct stages on the fracture parameters was analyzed by using the FEM methods. The results indicate, steel fiber increased the compressive strength of self-compacting concrete, the strength and Youngs modulus would increase with the SFRSCC age. The post-peak strength value decreased sharply with the age. The trilinear diagram could express exactly the developments of force-displacement.
引用
收藏
页码:251 / 256
页数:6
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