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Permeable liner having concrete setting retardant
Permeable liner having concrete setting retardant
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机译:具有混凝土防凝剂的透水衬里
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摘要
There is disclosed an article useful for producing concrete with textured patterns which includes a membrane of water permeable material having a pattern prepared on one side thereof with a water soluble retardant for the setting of cement and with the retardant pattern completely covered with a waterproof film that is bonded to the membrane immediately adjacent the retardant pattern. There is also disclosed a method for preparing concrete to have a pattern on its surface employing the article.
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