钙矾石 meaning in Chinese
entringite
Examples
- The research of compensation for shrinkage in super high - strength concrete by uea
大体积补偿收缩混凝土中延迟钙矾石生成产生危害的条件 - Ettringite in cement hydration products " value k " method of xrd and some accurate results were obtained . this method shows practically significant in studying the formation mechanism and stability of ettringite
摘要本文用x射线衍射法定量分析了水泥水化产物中的钙矾石，得到了较为准确的结果，该方法对研究钙矾石的形成机理和膨胀机理提供了重要的参考依据，具有理论和实际意义。 - The addition of aluminum sulfate caused the chemical shrinkage of cement mortar to reduce a little , but induced net plasma self - shrinkage to grow into expansion . that reason was that ettringite was produced by reaction between aluminum sulfate and hydration products
硫酸铝掺入水泥中，可以使水泥浆的化学收缩有少量的减少，但可以使水泥净浆的自收缩改变为膨胀效应，这是因为其与水泥水化的生成物反应生成了钙矾石。 - In practical uses , the major performances of concrete are associated with the quantities , types and the service conditions of the expansion - admixture . the expansion admixtures of concrete available at present still have many shortcomings , such as the greater quantities required , the non - relevance between developments of concrete strength and durability and expanding speeds of expansion admixture , the evaluation of expanding effects , the def of aft etc . unfortunately , few achievements in these aspects have been obtained all over the world
在实际使用中，膨胀剂类型、掺量及其使用条件对混凝土的主要性能影响很大，现有的膨胀剂存在着实际掺量较大、混凝土强度及耐久性发展与膨胀剂的膨胀速率不协调、膨胀效能如何评价、钙矾石aft相延迟性反应（ def ）等一系列问题，而目前国内外这方面的研究成果较少。 - The major performances of concrete and mortars , which are mixed with different quantities of expansion admixtures under the same mix proportions , are studied systematically and deeply in this work . sulphoaluminate mixed with a type of new expanding component by use of the composite methods are studied in the laboratory , and some achievements have been obtained . the service conditions , the characteristics and the shortcomings of expansion admixture in the concrete engineering are analyzed and summarized based on literatures , and the expanding mechanism of concrete is discussed
本文试图从膨胀剂不同掺量研究其对混凝土和砂浆主要性能的影响，进行了一系列宏观力学性能试验研究；利用差热分析（ dta ） 、扫描电子显微镜（ sem ）等分析手段对钙矾石等水化产物的结晶和生成量、形貌特征进行微观分析；并采用复合方法掺加新型膨胀组分对硫铝酸盐类膨胀剂（ uea ）进行了改性试验研究，根据多因素模糊综合评价方法就各类膨胀剂的主要性能进行综合评价，得出掺加新型膨胀组分pt的膨胀剂性能较优，取得了明显的效果。