Some observations on elastic properties of plain concrete

Abstract The elastic properties of plain concrete are important for understanding its behaviour. They are mainly affected by type of aggregate, concrete strength, age and curing history. Sustained loading also seems to be important. Experimental data are presented to illustrate these effects. Evidence is consolidated to confirm that the modulus of elasticity and Poisson's ratio in tension are equal to those in compression. It is shown that the Bache Nepper-Christensen model for concrete strength works well when adapted to moduli of elasticity.