| 摘要 |
A non-toxic, fire-retardant building material can be made on site, largely from available materials, without special tools or processes. The material cures through natural evaporation, without the application of artificial heat. The cured material has been tested to withstand a direct flame in excess of 1500° C. and is durable as most lightweight aggregate materials of similar thickness when formed into a structural panel or product. The material may be diluted by water as it is mixed and is suitable for spray application. The material has been successfully used as an exterior wall coating or a roof coating and has shown very desirable increase in "R" factor insulation ratings as well as providing a good fire retardant layer. The material is a is a mixture of water and cellulose fibers, both of which can be comprised of readily available materials at the job site, such as the available water supply or natural water and scrap shredded paper, including newspaper or other discarded paper or cardboard materials. The water and cellulose fiber is mixed to form a slurry and calcium, alumina, salt and ammonia are added. Pigments and aggregates may be added for appearance.
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