Lightweight concrete roof tiles and similar products
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United States of America Patent
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-
Dec 7, 1993
Issued Date -
N/A
app pub date -
Sep 24, 1992
filing date -
Aug 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lightweight concrete product in the form of a concrete roof tile is made from a cementitious mixture comprising a porous lightweight aggregate, an hydraulic cement, water, an agent for enhancing, flexural strength and an agent for enhancing the water retention capacity of the lightweight aggregate, the proportions being such that the product has satisfactory impact and flexural strengths.
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Cited Art Landscape
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