平潭地区弃石再生骨料特性及其对混凝土性能影响  

Characteristics and Influence on Concrete Performance of Reclaimed Aggregate by discard Stone in Pingtang Area

作　　者：郑樑 倪骏鹏 林小青 王智平 林敏 ZHENG Liang

机构地区：[1]平潭综合实验区新兴投资开发有限公司,福建平潭350400 [2]福建省建筑科学研究院有限责任公司,福建福州350108 [3]福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《福建建设科技》2023年第2期77-79,共3页Fujian Construction Science & Technology

摘　　要：通过将平潭地区废弃石板材再生利用,制成粗细骨料并配制水泥混凝土,研究当地弃石特性对再生骨料及其混凝土的影响规律。结果表明,平潭地区废弃石板材多以花岗岩为主,因其再生骨料棱角较多,需通过合适的粒径以及掺量来控制混凝土的质量,试验结果选择5~25mm连续级配的再生粗骨料以及掺量为25%~75%的再生细骨料,最终可获得工作性、强度和耐久性能优良的混凝土,既实现了建材因地制宜,又响应了"绿水青山"方针政策。The influence of the characteristics of the local discarded stone on the recycled aggregate and concrete was studied by reusing the discarded stone plate in Pingtang area to make coarse and fine aggregate and prepare cement concrete.Results show that the Pingtang area abandoned stone slab is mainly granite,because of many edge angles of recycled aggregates,the appropriate particle size and content are needed to control the quality of the concrete.The test chooses 5~25mm continuous gradation of recycled coarse aggregate and 25%~75%of recycled fine aggregate,eventually can obtain high performance concrete with good workability,high strength and durability.It has realized the goal that building materials taken by local conditions and responded to the policy of"clear water and green mountains".

关 键 词：平潭地区 废弃石板材 再生粗细骨料 混凝土 性能 

分 类 号：TU528[建筑科学—建筑技术科学]