基于回归分析法的再生混凝土龄期抗压强度变化曲线模拟

Regression Analysis on Compressive Strength Change Curve of Recycled Aggregate Concretes in Age Periods

通过室内实验对再生混凝土各龄期内抗压强度进行了测定;应用回归分析法,参考普通混凝土对龄期曲线模拟的基本理论,采用三次幂函数对再生混凝土的龄期与抗压强度发展规律进行了模拟﹒通过与实测数据的对比、极差调整等途径确定了各参数获取方法﹒

In this paper the compressive strength of recycled aggregate concretes during each age period is measured through laboratory experiments;The age periods and comprehensive strength development laws of the recycled aggregate concretes are simulated by virtue of applying a regression analysis method and adopting a cubic function in reference to the basic principle of the curve simulation for common concretes during age periods;and by virtue of methods such as comparison of measured data,and range adjustment and so on,methods for acquiring various parameters are determined.