| 摘要 |
PURPOSE: A porous building material has micro air bladders and air passages and thereby greatly enhances heat resistance and sound proofing of the building. CONSTITUTION: A porous building material comprises:heat-resisting materials as principal components(20) such as loess, concrete and gypsum; and additional thermoplastic materials(30) such as natural/synthetic resins, green fuels and foam that have the lower heat deflection temperature. The additional thermoplastic materials are selected from the group consisting of waste styrofoam granules, saw dust, rice bran, rice straw, timber particles, coal particles, and mixtures thereof.
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