Experimental Study on the Time-dependent Relationship Between Compressive Strength and Elastic Modulus and Constitutive Model of Early-age Manufactured Sand Concrete
Experimental Study on the Time-dependent Relationship Between Compressive Strength and Elastic Modulus and Constitutive Model of Early-age Manufactured Sand Concrete
In order to study the time-dependent relationship between compressive strength and elastic modulus and the constitutive model of early-age manufactured sand concrete under uniaxial compression,cube compressive strength test,static compressive elastic modulus test and uniaxial compressive stress-strain curve test were conducted on 8 groups of C60 manufactured sand concrete specimens of different ages,and many existing research models were referred to.The relationship model between compressive strength and elastic modulus and the piecewise stress-strain constitutive model of early-age manufactured sand concrete under uniaxial compression are established.The results show that the time-dependent relationship model between compressive strength and elastic modulus and the piecewise stress-strain constitutive model are in good agreement with the experimental data,and can better describe the mechanical properties of early-age C60 manufactured sand concrete under uniaxial compression.
关键词
早龄期/时效关系/分段式/本构模型
Key words
early age/time effect relationship/segmented/constitutive model
维普
万方数据