摘要
针对兰新二线高性能混凝土粗骨料碎石供应不足的问题,通过理论分析卵石破碎后破碎面积占表面积的比例关系及破碎粒径变化趋势,结合试验研究,分析对比了碎卵石对高性能混凝土的影响,得出了碎卵石应用的最小粒径、破碎面积等指标,同时提出了分级破碎的粒径要求,研究即为保证沿线混凝土施工质量提供了理论依据和试验论证,又做到就地取材,节约资源和保护环境的双重效益。
According to the supply shortage problem of Lanxin second-line high-performance concrete garvel coarse aggregate,a theoretical analysis study by cushing area ratio of broken relationship and crushing surface particle change trend, analysize and comparisive the influence produced by broken gravel on high-performance concrete, obtained the smallest diameter of broken gravel application and gravel area and other in- dexes,meanwhile,it puts forward the grain diameter requirements of grade crushing,the study not only guarantee the quality of concrete construction along the railway and provides theoretical basis and experiment,but also use local materials, and resourceconservation and environmental protection of double benefit.
出处
《混凝土》
CAS
CSCD
北大核心
2011年第12期90-93,共4页
Concrete
基金
铁道部科技研究开发计划重大项目(2010G019-A)
甘肃省道路桥梁与地下工程重点实验室开放基金(kfjj-10-06)
关键词
高性能混凝土
破碎面
碎卵石
最小粒径
high performance concrete
crushing surface
broken gravel
smallest diameter
作者简介
邢斌（1961-），男，高级工程师。联系地址：乌鲁木齐市新市区北二路201号（830011）联系电话：13609341246
