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- W2387111387 abstract "In order to study the rule of cube compressive strength,uniaxial compressive strength,splitting tensile strength,static compression elastic modulus and uniaxial compressive stress-strain curves of concrete at early age,the loading test for the system and test data analysis were performed. The change rule of mechanical indexes with the age and the conversion relationship with the cube compressive strength were summarized. Through fitting the related parameters,the sectional fitting formula of compression stress-strain curve was proposed,and the fitting results are in good agreement with the experimental data. The results showthat both strength and elastic modulus of C40 concrete at early age nonlinearly increase with the age.The 7 d is the watershed between growth changes. With increasing the age,the peak strain decreases and the brittleness becomes larger. Furthermore,the shape of uniaxial compression stress-strain curve of concrete at early age is similar to that of full age concrete." @default.
- W2387111387 created "2016-06-24" @default.
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- W2387111387 date "2015-01-01" @default.
- W2387111387 modified "2023-09-27" @default.
- W2387111387 title "Mechanical property experiment and uniaxial constitutive model for concrete at early age" @default.
- W2387111387 hasPublicationYear "2015" @default.
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