基于成熟度理论的单掺粉煤灰轻质混凝土弹性模量预测新模型

A New Model for Predicting Elastic Modulus of Lightweight Concrete with Singly Mixed Fly Ash Based on Maturity Theory

以成熟度理论为基础,以湿表观密度、粉煤灰掺量、水胶比、水泥强度以及成熟度为自变量,建立了显式快速预测单掺粉煤灰轻骨料混凝土弹性模量计算模型。研究表明,新建模型的计算结果能够较好吻合试验结果,可用于对轻骨料混凝土弹性模量的预测,为后续轻骨料混凝土弹性模量的预测以及实际工程的运用提供了基础。

On the basis of maturity theory,an explicit and rapid prediction model for elastic modulus of lightweight aggregate concrete with single fly ash is established by taking wet apparent density,fly ash content,water binder ratio,cement strength and maturity as independent variables.The study show that the calculation results of the new model are in good agreement with the test results,and can be used to predict the elastic modulus of lightweight aggregate concrete,which provides a basis for the subsequent prediction of elastic modulus of lightweight aggregate concrete and the application of practical engineering.