混凝土废浆料活性再激发试验
Experiments on Re-Exciting the Activity of Waste Concrete Slurry
  
中文关键词:混凝土  激发试验  废浆料  砌块砖  强度提高
英文关键词:concrete  exciting experiments  waste concrete slurry  block brick  improvement in strength
基金项目:
作者单位
冯鑫 中铁建设集团有限公司混凝土分公司北京100040 
摘要点击次数: 117
全文下载次数: 44
中文摘要:
      目前国内大部分混凝土搅拌站都安装了砂石分离系统,可以分离出部分砂石料进行二次利用,但清洗沉淀的水泥浆体通常作为生产垃圾清运出站。本试验基于一种已投入使用的沉淀废料生产砌块砖方案对其进行改进提高,尝试将分离沉淀浆体中残留的活性成分激发,优化砌块砖产品的力学性能。试验选用三种化学试剂进行试验(Ca(OH)2,NaOH,Na2SO4),通过与基准组对比,分析不同类型激发剂对抗压强度的影响。最终结果显示:无机碱组分对水泥、废浆料砂浆体系早期强度激发作用明显,硫酸钠盐因本身激发化学反应机理与碱组分不同,其激发效果优于碱组分。
英文摘要:
      At present,most of the concrete mixing stations at home have sand-stone-separating systems, which can separate part of the sand and gravels from waste concrete slurry for recycling,but the cement paste subsided is usually discharged as production waste.The present experiment of ours is based on the scheme of producing block bricks with subsided waste,which is already put into production and which is improved by reexciting the activity of the remaining ingredients in the separated slurry,and optimizing the mechanical properties of the bricks produced.The experiments are performed with three chemical reagents\[Ca (OH)2,NaOH and Na2SO4\],with the effects of the different reacagents on the compressive strength analyzed by comparing them with the baseline group.The final result shows that the inorganic alkali components have obvious effects of reexcitation on the earlier strength of cement and waste slurry,and owing to its own chemical reexciting mechanism different from that of alkali components,the stimulating effect of the sodium sulfate salt is better than that of alkali components.
冯鑫.混凝土废浆料活性再激发试验[J].国防交通工程与技术,2017,15(4):8~10
查看全文  查看/发表评论  下载PDF阅读器
关闭
你是第707747访问者     谢谢你对本刊的关注与支持

版权所有《国防交通工程与技术》编辑部
编辑部地址:河北省石家庄市北二环东路17号石家庄铁道大学 联系电话:0311-87935805  E-mail: gfjt@stdu.edu.cn
本系统由北京勤云科技发展有限公司设计