再生粗骨料在高强泵送混凝土中应用的试验研究.pdf
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全国中文核心期刊 钎癯.正蟓柑拇
再生粕骨米斗在高强泵送混凝土中
应用的试验研究
李超b:,刘福田2,董全文,,谢慧东,
(1.山东华森混凝土有限公司。山东济南250101;
2.济南大学,山东济南250100;
3.济南市建筑工程质量与安全生产监督站,山东济南250013)
摘要:通过对再生粗骨料各项性能试验研究,分析再生粗骨料掺量对高强泵送混凝土性能的影响。通过进一步改善配合比,将
再生粗骨料代替天然粗骨料掺量提高到300/,0,高强泵送再生粗骨料混凝土各项性能指标能够满足施工技术要求,并通过扫描电镜
分析高强泵送再生粗骨料混凝土的微观结构。。
关键词:废弃混凝土;再生粗骨料;高强泵送混凝土
中图分类号:TU528.53,X799.1文献标识码:B 文章编号:1001-702X(2011)04-0012-03
on of coarse in concrete
Experimentalstudyapplicationrecycled aggregatehighstrengthpumped
LIC/zoo’”,LIUFutian2,DONG
Quanwen3,XIEHuidor珂
ProvincialHnasenConcrete
(1.Shandong Co.1ad.,Jinan250101,Shandong,China:
2dinah
University,Jinan250100,Shandong,China:
Centerfor and inProductionof
33inan SupervisionSafety BuildingEn百neefing,Jinan250013,Shandong,China)
Quality
Abstract:Basedonthe onthe of coam effectof
recycled aggregate,the coar∞aggre-
experimentalstudy properties recycled
contentonthe of concretewas further the the肛
gate performancehish-strengthpumped analyzed.Byimprovingmix,increasing
ratioof coarse contentto30%,a ofindicatorsof
placement recycled aggregate variety hi曲-strengthpumpedrecycleda路Tegate
concretecallmeetthetechnical for electron mierostmetureofthe
requirements scanning
construction.By microscopy,the
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