portland cement

基本解释

The Portland Cement Association, an industry group, said it would review the proposal.
行业协会波特兰水泥联合会称，它已经审阅了这份建议稿。
"I think our industry could be effectively pushed out of?California, " says Jim Repman, CEO of the California Portland Cement Co.
加州波特兰水泥公司的首席执行官吉姆·雷普曼(Jim Repman)也怀有同样的忧虑：“我个人认为我们的企业会十分有效地被驱离加州。”
Slurry of the common portland cement can be of the same functions of many kinds of special cement by adding additives.
常用硅酸盐水泥通过外加剂改性可以获得与多种特种水泥同性能的水泥浆液。

Portland cement is a material that holds together the sand and crushed stone in concrete.
The idea is to replace some of the portland cement traditionally used in making concrete.
The Portland Cement Association says the gas from the limestone is reabsorbed as concrete ages.

This synthetic chalk could substitute for some of the Portland cement now used in construction.
FORBES: Thought Leaders

a cement that hardens under water and is made by heating a slurry of clay and crushed chalk or limestone to clinker in a kiln

水泥
This paper studied the damage , fracture , fatigue and water fracture mechanics of Portland cement concrete pavement with the twin shear theory, minimum energy dissipation theory and fractal theory combination. The main research contents and results of the thesis are as follows:1 .
本文采用双剪理论、最小耗能原理和分形理论研究混凝土路面的损伤、断裂、疲劳和水破坏机理，并应用这些研究结果于水泥混凝土路面结构设计及维修分析，主要研究内容及结果如下： (1)采用双剪理论和最小耗能原理研究混凝土路面损伤直到断裂破坏的过程，首次采用双剪理论与最小耗能原理建立混凝土路面双剪强度准则，导出破坏准则的参数b值，证明目前采用的混凝土路面破坏准则可行，建立考虑损伤的混凝土路面应力分析方法。
土木建筑工程
波特兰水泥
硅酸盐水泥
普通水泥