再生混凝土技术及其配合比设计方法  

TECHNOLOGY AND MIX DESIGN ON RECYCLED CONCRETE

作　　者：史巍[1] 侯景鹏[1] 

机构地区：[1]大连理工大学土木系,大连116023

出　　处：《建筑技术开发》2001年第8期18-20,共3页Building Technology Development

摘　　要：使用废弃混凝土块代替天然骨料配制再生混凝土技术 ,因具有明显的环境效益、经济效益和社会效益 ,正逐步受到人们的重视。本文阐述了再生混凝土技术的概念 ,再生混凝土的基本性质 ,并针对再生骨料吸水率较大而导致再生混凝土强度离散性大的特点 ,提出基于自由水灰比之上的再生混凝土配合比设计方法 ;并同普通混凝土配合比设计方法比较 ,分析了该方法对发展混凝土强度的优越性及工程上的经济性 。The technology of using recycled aggregate from demolished concrete debris to take the place of virgin gravel and sand aggregate in concrete,having better environmental,economic and social benefits,is gradually gaining popularity.In this article,the concepts concerning recycled aggregate concrete are defined and the characteres of recycled aggregate concrete are discussed.The author also points out the issue of the method mix design based on free water cement ratio in order to solute the problem of larger water absorption and analyze its advantages on developing the compressive strength of recycled aggregate concrete,and compared with the mix design method of common concrete.The author also suggest this method of mix design should be widely used in the other concretes. \[

关 键 词：再生骨料 再生混凝土 自由水灰比 配合比 

分 类 号：TU528.59[建筑科学—建筑技术科学]