Results 271 to 280 of about 154,207 (310)

Nature of compression strength in concrete

Magazine of Concrete Research, 1992
A compression strength theory for concrete based on the capillary porosity of binder paste in concrete and the intrinsic tensional strength of the CSH gel is presented. The capillary pores were modelled as spheres of equal radius and the tensional stress peak on the surface of the voids was calculated using a FEM program.
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Compressive Strength Reduction of Concrete Subjected to Hydrostatic Compression

Applied Mechanics and Materials, 2012
An experimental study of the damage behavior of two kinds of concrete with different strength grades has been performed using 100mm cubes subjected to increasing hydrostatic loading history, namely, the isotropic compression at high pressure. The compressive strength and ultrasonic velocity are measured before and after loading history, respectively ...
Jing Zhou Lu, Lin Chen, Xu Zhu, Na Xu, Gao Lin   +4 more
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Prediction of compressive strength of concrete

Matériaux et Constructions, 1974
The paper, which summarises a survey and an analysis of empirical strength laws, was undertaken with a view to formulating a strength law interrelating the water-cement ratio-which determines the porosity of the hardened cement-paste-and Powers's Gel/Space ratio, giving the relative strength of the cement stone.
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Strain of High-Strength Concrete at Peak Compressive Strength

Advanced Materials Research, 2012
The paper discusses the strain of high-strength concrete (HSC) at peak compressive strength for a wide range of compressive strength. A large volume of selected experimental data has been collected from existing literature and then analyzed. Particular emphasis has been given to studying the effects of concrete compressive strength and the types of ...
Zhao Hui Lu, Yan Gang Zhao, Zhi Wu Yu
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Predicition of concrete compressive strength

2008
A compressive strength of concrete is considered as its basic material property. The conventional practice is that other mechanical and physical properties are brought into correlation with the compressive strength. Therefore, the prediction of compressive strength has always been of the greatest importance.
Mikulić, Dunja, Gabrijel, Ivan, Milovanović, Bojan   +2 more
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High-Strength Concrete Properties Derived from Compressive Strength Values

Cement, Concrete, and Aggregates, 1995
Abstract The determinations of modulus of elasticity and flexural and splitting tensile strengths often involve complicated testing procedures compared to compressive strength testing. These properties can be estimated using existing relationships between them and compressive strength values.
KH Khayat, JA Bickley, RD Hooton
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Compressive Strength of Concrete Masonry Beams

ACI Structural Journal, 2012
This study investigates the compressive strength of beams in concrete masonry construction. Concrete masonry construction comprises concrete block units and mortar joints in horizontal (bed joints) and vertical directions (head joints). The compressive force in beams acts in the direction parallel to the bed joint.
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Compressive Strength of Concrete Masonry Prisms

ACI Journal Proceedings, 1986
Experimental tests on prisms and constituent materials (mortar, grout, and hollow-core concrete blocks) are used to calibrate linearly elastic finite element models for hollow and grouted concrete ma­ sonry prisms. These finite element models are then used to develop simplified relationships which closely predict the compressive strengths and failure ...
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Strength of Concrete Under Biaxial Compression

ACI Journal Proceedings, 1965
A CRITERION FOR FAILURE OF CONCRETE UNDER COMBINED STRESSES HAS BEEN STUDIED BY TESTING CONCRETE CUBES TO FAILURE UNDER BIAXIAL COMPRESSION. FROM THE RESULTS OF THESE TESTS, CORRELATIONS BETWEEN THE OCTAHEDRAL NORMAL AND SHEAR STRESSES AND THE PRINCIPAL STRESSES IN DIMENSIONLESS FORM WERE OBTAINED.
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Prediction of compressive strength of concrete

AIP Conference Proceedings, 2023
M. Satish Varma, Akshitha Jain, B. Hemanth, J. Satwik, A. Bhaskar Sai   +4 more
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