複合則理論を用いたコンクリートのヤング係数の推定式に関する研究

概要

論文の詳細を見る
For high-strength and high-fluidity concrete, the water-cement ratio and the volume fraction of aggregate is lower than conventional concrete. In order to clarify systematically the deformation of these concrete, it is necessary to consider the effect of the volume of constituents in concrete. In this study, the estimation formula of modulus of elasticity of concrete was derived on the basis of a two-phase composite material model through experiments on the compressive strength and secant modulus of cement paste and concrete specimen with a same water-cement ratio respectively. The following conclusions may be drawn : 1) the relationships between cement-water ratio and modulus of elasticity of cement paste and concrete specimen were expressed by comparatively simple equations. 2) the elastic modulus of cement paste can be explained as a function of the cement-water ratio, and that of aggregate as a function of its absorption. 3) the proposed equation is able to estimate the compressive secant modulus of both normal and high strength concrete.
社団法人日本建築学会の論文
2004-02-28