机制砂在干混砂浆中的应用.pdfVIP

学兔兔 中国科技核心期刊 新 廉 机制砂在干混砂浆中的应用 章银祥 “z，夏旺 ，王国强 ，张文才 ，刘亚菲 ，田胜力 (1B京市预拌砂浆工程技术研究中心，北京 100041： 2．北京金隅砂浆有限公司，北京 102402) 摘要：天然砂已难以满足干混砂浆行业发展的需求，机制砂可取而代之。结合多年的实践经验，较为详细地介绍了机制铁尾矿 砂、石灰石机制砂的生产工艺、性能特点及其在干混砂浆中应用的相关注意事项：经过烘干、分级处理的铁尾矿砂可全部代替绝大 部分特种干混砂浆中的天然砂；传统砂石料线生产的石灰石机制砂不能全部代替普通砂浆中的天然砂，需要与天然砂复配使用；由 立轴式制砂机、锤式破碎机等组成的专业机制砂线生产的机制砂，经分级后可全部代替普通砂浆中的天然砂；将铁尾矿砂与石灰石 机制砂复配使用，综合效果更好。 关键词：干混砂浆；机制砂；应用 中图分类号：TU528．041 文献标识码：A 文章编号：1001—702X(2015)03—0014—04 AppHcafion ofmanufactured sand in the dry--mixed mortar ZHANGl，w ∞ 。，XIA Ⅲ ，WANGGuoqiangI，ZHANGWencai，LIUr,Cei，TIANShengli (1．BeijingMunicipalResearchCenterofEngineeringTechnologyonPre—mixedMortar，Beijing100041，China： 2．BeijingBBMGMortarCo．Ltd．，Beijing102402，China) Abstract：Natural sand hasbeen difficulttomeetthe needsofthedevelopmentofdry-mixed mortarindustry，itcanbe replaced by manufactured sand．Combined with many years ofpracticalexperience，the paper introduces in detailthe production process，performance chraacteristicsofmanufactured sand ofiron tailingsand limestone，aswellas relevantprecautionsneeding be noted in the application ofdry mixed mortar：the naturalsand in the specialdry—mixed mortra may allbe replaced by the dry and classifyingtails sand．Thenaturalsnad in the nomr aldry—mixed mortarcould allbe replaced by the manufactured limestone sand，which produced by the professionalproduction line consisted ofthe impactorthe hnamaercrusher．Itcan only partially be replaced bythesandproduced bytraditionalproducingline．Itisbetterthatthetailsand thelimestonemanufactured snad are togetherused in the dry-mi