Guar gum derivatives are used as retention and drainage AIDS, as well as dry strength agent in the papermaking industry. The potential application in the future is pointed out.

论述了瓜儿胶衍生物在造纸湿部作为助留助滤剂、增强剂的应用，并指出今后的发展前景。

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The slag grinding fineness, additives of exciting agent, modifier kind and quantity, which influence the dry contractibility and strength of slag cementing material, have been studied.

研究了矿渣的粉磨细度、激发剂的掺量、改性剂的种类与掺量对矿渣胶凝材料的干燥收缩性能及强度的影响。

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The influence of shrinkage-reducing agent, polypropylene fiber and expansion agent on strength and dry shrinkage of the concrete were systematically tested.

系统测试了单掺聚丙烯纤维、单掺膨胀剂和双掺聚丙烯纤维与膨胀剂对混凝土空心砌块抗渗性能和湿胀干缩的影响规律。

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