Abstract
In this paper, a method for predicting Young's modulus of cementitious composites produced by extrusion moulding is proposed. The applicability of the method was examined by three series of experiments. After the Young's modulus of matrices of composites are predicted, Young's modulus of composites are predicted by Hashin-Hansen equation, which is formed on the basis of Self-Consistent Approximation (S. C. A model) for finding composites mechanism on elastic modulus. Furthermore, it is clarified in case of extrusion moulding that Young's modulus of matrices are deeply influenced by visco additives and fiber additives as well as cement water ratio and degree of hydration. As the result of this experiment, predicted values are nearly equal to tested ones. Therefore, it is possible to predict Young's modulus of cementitious materials produced by extrusion moulding.
