×

缓凝作用 meaning in Chinese

delayed coagulation
set retarding

Examples

  1. The result shows , for this composite cement system , retarding action of dihydrate gypsum is more obvious than that of anhydrite , meanwhile , anhydrite tends to cause setting time short and water needed increased
    结果表明:二水石膏对该种复合体系水泥的缓凝作用比硬石膏明显,硬石膏易引起复合体系水泥急凝和需水量增大。
  2. The shrinkage reducing rate can reach to 70 % at the 7th day , and the shrinkage reducing rate can reach to 40 % at the 28th day . it doesn ’ t reduce the intension of the concrete . it can have an ability of 10 18 % of reducing water rate
    通过对比试验发现,聚丙烯酸盐类减缩剂的最佳掺量为水泥质量的1 . 2 % , 7天减缩率可达70 % , 28天减缩率可达40 % ,且不降低混凝土的强度,具有10 18 %的减水率,有一定的缓凝作用
  3. Abstract : based on composite testing of naphthalene superplasticizer and different retarders as well as retarding water reducer , in which the overall amount of admixture is certain , this paper analyzes the influence of these multicomponent admixtures on flowability of neat cement 、 retarding action and development of strength of colloidal mortar . the result shows that compatibilities of different components are different , and composition effects are also different
    文摘:在总掺量一定的情况下,就萘磺酸盐高效减水剂与不同缓凝组分、缓凝型减水剂等复合后对水泥净浆流动度、缓凝作用、胶砂强度发展等性能的影响作用进行了试验分析,结果表明各不同组份复合的相容性不同,复合效应也存在差别。
  4. Through the analyzing the macro - structure to micro - structure , the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion , and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca , hinders the dissolve of hemihydrate . formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group , which also retards the formation and growth of crystallization center
    通过宏观到微观的分析,笔者认为,柠檬酸的缓凝作用的原因主要在于柠檬酸与钙形成络合离子,影响了二水石膏晶体的晶核长大过程;多聚磷酸钠与钙形成某种复盐,对于石膏晶体的溶解、成核和长大过程均有强烈的阻碍影响;骨胶则在于胶体对半水石膏的包裹和活性基团的化学吸附,使二水石膏晶体的成核和长大困难。

Related Words

  1. 缓射
  2. 缓燃
  3. 缓卫
  4. 缓利
  5. 缓凝
  6. 缓诘
  7. 缓斜面
  8. 缓检年限
  9. 缓释片剂
  10. 缓存目录
  11. 缓凝水泥浆
  12. 缓凝油井水泥
  13. 缓判
  14. 缓跑径
PC Version

Copyright © 2018 WordTech Co.