Instantaneous deformability of high performance concretes with crushed aggregates

Abstract

The test results presented concern high performance concretes of the w/c ratio 0,28. There have been examined the modulus of elasticity, Poisson’s ratio and limiting strain at the highest compressive stress. The variable factor in the studies is the type of coarse aggregate: crushed basalt, dolomite and granite. The results of the research have been tested statistically – the one-way ANOVA and the LSD test. There is stated the significant influence of aggregate on the tested deformation properties of high performance concretes.

Keywords

• high performance concrete
• crushed aggregate
• relation σ - ε
• modulus of elasticity
• Poisson’s ratio
• limiting strain εc1 at the highest compressive stress