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

作　　者：朱然 徐俊 占羿箭 ZHU Ran;XU Jun;ZHAN Yijian(Shanghai Construction Group Co.,Ltd.,Shanghai 200080,China;Shanghai Engineering Research Center of Mega Structure High Performance Concrete,Shanghai 200080,China)

机构地区：[1]上海建工集团股份有限公司,上海200080 [2]上海高大结构高性能混凝土工程技术研究中心,上海200080

出　　处：《建筑施工》2020年第11期2108-2110,2116,共4页Building Construction

基　　金：上海市科学技术委员会科研项目课题(18DZ2282600);上海建工集团股份有限公司科研项目课题(17YJKF-13,19YJKF-17)。

摘　　要：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.

关 键 词：轻骨料混凝土 弹性模量 预测模型 成熟度 粉煤灰 水胶比 

分 类 号：TU528[建筑科学—建筑技术科学]