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1.日本Kasei公司研制出一训用于混凝土路面接缝的塑料制品。这种PVC塑料具有吸水性,它能从混凝土中吸收碱性液体,並使接缝处更加密封。这种塑料还可用于大口径混凝土污水管接头的密封。
1. Japan Kasei Company has developed a plastic product for training concrete pavement joints. This PVC plastic is water-absorbent and it absorbs alkaline liquids from the concrete and makes the joints more sealed. This plastic can also be used to seal large diameter concrete sewer pipe joints.