RELATIONSHIP BETWEEN STRENGTH AND DEFORMATION CHARACTERISTICS OF HIGH-STRENGTH SELF-COMPACTING CON-CRETE

he paper provides data on the strength and deformation characteristics of heavy self-compacting concrete classes B30-B100 with a cubic compressive 36.5-114.8 MPa. It has been established that values prism (36.2-104.2 MPa) are 42-64% higher than normalized given in building code Russian Federation SP 63.13330.2018. The static modulus elasticity for high-strength concretes B80-B100 44.1-48.1 GPa exceed by 5-12% ultimate strains range from 261×10-5 to 326×10-5 value 200×10-5 Complete diagrams have constructed. nonlinearity these ones decreases increasing strength. descending branch σ-ε diagram is observed only class below B55 total relative compres-sive strain 403.3 × 10-5 under loading level 0.85Rb. Concrete B55-B100 no branch. Previously dependencies refined analytical description stresses at any stages structures.