| 摘要 |
Inorganic materials such as sand, gravel stone chippings, silicate, asbestos, mica, feldspar etc. may be mixed with e.g. cement, gypsum, chalk and/or alkali silicate and water and polyethylene or polypropylene or polypropylene spheres, and allowed to set, to produce a cellular product useful for building etc. with good heat resistant, acoustic and thermal insulation and water resistant properties. A binder may be included, the mix may be moulded before setting and heat may be used to speed up the process. |
