• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>New Progress on Roller Compacted Concrete Dams >Influential Factors of Air Content in RCC
【24h】

Influential Factors of Air Content in RCC

机译：碾压混凝土中空气含量的影响因素

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Influence on air content in roller compacted concrete (RCC) was analyzed by experiments. The influencing factors are hardness of water, adding order of air entraining admixture (AEA), kind and dosage of AEA, set retarding super plasticizer and content of rock powder. Test results show that when the hardness of water in construction sites was increased, bubbling potential of AEA would be affected, along with reduce of air content of RCC. In comparison with the soft water of the hardness of 132. 14mg/L, medium hardness water with the hardness of 156. 33mg/L was able to reduce 0. 95% of air content of RCC. Air content was increased when AEA is added after high efficiency water reducing agents with retardation setting. Effect of air entraining of rosin AEA was generally good and that of synthetic detergents and saponin AEA were less effective. If dosage of AEA was increased within a certain limits, air content of RCC would raise. Dosage of high efficiency water reducing agents with retardation setting ranged rom 0.6% to 1.0%, its VC value reduced from 10.1s to 4.6s. Air content firstly increased, before gradual reduce. When rock powder of crushed sands was increased, effect of air entraining of would be reduced. When content of rock flour increased by 1% air content would reduce by 0.1%.
机译：通过实验分析了对碾压混凝土（RCC）中空气含量的影响。影响因素是水的硬度，引气剂的加入顺序，AEA的种类和用量，缓凝型超级增塑剂的含量以及岩粉的含量。测试结果表明，当增加施工现场水的硬度时，会影响AEA的鼓泡潜能，同时降低RCC中的空气含量。与硬度为132. 14mg / L的软水相比，硬度为156. 33mg / L的中硬度水能够降低RCC空气含量的0. 95％。在具有阻滞设定的高效减水剂之后加入AEA时，空气含量增加。松香AEA的引气效果通常很好，而合成洗涤剂和皂苷AEA的效果较差。如果在一定范围内增加AEA的剂量，RCC的空气含量将会增加。延迟设定的高效减水剂的用量范围从0.6％到1.0％，VC值从10.1s降低到4.6s。空气含量先增加，然后逐渐减少。当增加碎砂岩粉时，会降低夹带空气的效果。当岩粉含量增加1％时，空气含量将减少0.1％。

著录项

  • 来源
  • 会议地点 Guiyang(CN)
  • 作者

    Wei Ding; rnYanyan Li; rnQiuwen Zhang;

  • 作者单位

    Li Keliang@R-D High Technology Co., Nanjing Hydraulic Research Institute, 34 Hujugan Road Nanjing, 210024, China--Chen Zurong@R-D High Technology Co., Nanjing Hydraulic Research Institute, 34 Hujugan Road Nanjing, 210024, China--Lin Quan@R-D High Technology Co., Nanjing Hydraulic Research Institute, 34 Hujugan Road Nanjing, 210024, China--Wang Yi@R-D High Technology Co., Nanjing Hydraulic Research Institute, 34 Hujugan Road Nanjing, 210024, China--Wen Jinbao@R-D High Technology Co., Nanjing Hydraulic Research Institute, 34 Hujugan Road Nanjing, 210024, China--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 挡水坝;
  • 关键词

    roller compacted concrete; air content; influential factors; air-entraining admixture;

    机译：碾压混凝土;空气含量;影响因素;引气剂;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号