On Determining Elastic Modulus of Lightweight aggregate by Numerical Method

• Main Authors: Yu, Huei Yuan, 游輝淵
• Other Authors: Yen Tsong
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/24327553989772587221

碩士 === 國立中興大學 === 土木工程學系 === 86 === Abstract The elastic modulus (E) of lightweight aggregate has important effects on the strength and the mechanical properties of lightweight aggregate concrete. On the determination of the E value of concrete, the empirical equations and the predicted formulas derived basing on the composite materials theory are often adopted. These methods have been evaluated to be inconvenient or impractical. This study presents firstly the method of numerical analysis to simulate the distribution situation of aggregate in concrete, and then establishes the relationship among the elastic modulus of concrete, mortar, aggregate and the content of aggregate in concrete. This relationship is then utilized for evaluating the E value of light aggregate according to the test data. The results show that it is appropriate to predict the modulus of elasticity of lightweight aggregate by the proposed method of numerica