海洋工程再生砖混骨料的性能测试及级配优化  

Performance test and gradation optimizing of marine engineering mixed recycled brick aggregate

作　　者：张博 韦华栋 孟涛[2] 赵羽习[2] 张云财 ZHANG Bo;WEI Huadong;MENG Tao;ZHAO Yuxi;ZHANG Yancai(Ocean Research Center of Zhoushan,Zhejiang University,Zhoushan 316021,China;Zhejiang University,Hangzhou 310058,China;Zhoushan Jinke Resources Recycling Co.Ltd.,Zhoushan 316021,China)

机构地区：[1]浙江大学舟山海洋研究中心,浙江舟山316021 [2]浙江大学,浙江杭州310058 [3]舟山市金科资源再生有限公司,浙江舟山316021

出　　处：《新型建筑材料》2021年第12期98-102,共5页New Building Materials

基　　金：浙江省重点研发计划项目(2020C04013)舟山市科技计划项目(2019C21052)。

摘　　要：通过对海洋工程建筑固废进行分类、并对其组成及相关性能进行测试,得到海洋工程再生砖混骨料的性能特点。结果表明,海洋工程建筑固废组成以废弃混凝土为主,含有部分碎砖,其它杂质含量较少。性能方面,其压碎值偏高,力学性能一般,有害离子含量极少可忽略其影响,空隙率较大,级配较差。根据其性能特点采用最紧密堆积密度试验对再生骨料的级配进行优化,得到海洋工程再生砖混骨料的最佳混合比例,为其在再生混凝土中的应用研究提供参考。In this paper,the performance characteristic of marine engineering mixed recycled brick aggregate was studied by classification and test of the composition and property of marine building waste.It's composed mainly of waste concrete with a small amount of crushed brick.The other impurities are less.In terms of performance,its crushing value is a little larger so its mechanical property is not very good.The content of harmful ion is so less that its effect can be ignored.Its voidage is so larger that its gradation is worse.With the characteristic and experiment of the particle packing density method,it can optimize the gradation of recycled aggregate and obtain the best mix ratio.Thus,it provides a foundation for the application research of marine recycled concrete.

关 键 词：海洋建筑固废 再生砖混骨料 最紧密堆积密度 

分 类 号：TU528.041[建筑科学—建筑技术科学]