发明名称 |
Cloth faced form for forming concrete |
摘要 |
Concrete forms comprising a first cloth sheet permitting surplus water and air contained in concrete cast in the form to pass therethrough but capable of blocking the passage of the concrete, a second cloth sheet permeably secured to the first sheet, permitting the surplus water and air to pass between and through the first and second sheets and to be absorbed into the second sheet as well as the first sheet, and a support plate to which the second sheet is bonded as by adhesive or thermal bonding acting through only part of the thickness of the second sheet, leaving as water and air permeable throughout the remainder of the second sheet, all of the first sheet, and the interspace therebetween, such being effective as flow paths for surplus water and air to exhaust from the concrete cast in the form to thereby shorten the cure time and improve the strength of the concrete when cured.
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申请公布号 |
US4787597(A) |
申请公布日期 |
1988.11.29 |
申请号 |
US19880162228 |
申请日期 |
1988.02.29 |
申请人 |
KABUSHIKI KAISHA KUMAGAIGUMI |
发明人 |
YOKOTA, TAKAYOSHI;HORIYA, SHIGEKAZU;TANAKA, KENJIROH |
分类号 |
E04G9/10;(IPC1-7):E04G9/10;B28B7/36 |
主分类号 |
E04G9/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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