作者: Jack V. Knowles
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摘要: A construction material light weight as compared to standard concrete yet having excellent thermal insulation qualities. The when processed uses cement, pumice in small size particularized form and/or volcanic ash, scoria form, vermiculite flaked particle and water for the cement. While product may be formed with these ingredients alone a more uniformly predicable produced if, prior mixing of all ingredients, is mixed kerosene on ratio approximately one cubic foot fourth foot. then coat block absorbtion from cement mixture by thereby insure proper curing binder overall mix. Fluffed mineral wool added generally extent some seven eleven percent mix preliminary step fluffed stringy being process enough time wrap around such minimize washing into cavities scoria. If "R" factor main consideration (fluffed) volumetric content increased much fifty greater factor.