| 摘要 |
<p>PURPOSE:To easily mold a lightweight material for buildings by adding cement and a proper volume of water to a main material which is a mixture composed of vegetable or vegetable fibers and coal ash and subjecting the mixture to pelletization or by smearing the main material with aq. cement slurry. CONSTITUTION:The vegetables, for example, chaff, cotton flower hulls, corn cores, etc., or vegetable fibers, for example, straw and sugar cane fibers, yarn dust, fabric dust, chips, pulp, cotton scrap and coconut shellfibers, etc., and the coal ash are mixed. The mixing ratio is settable as desired at >=10wt.% coal ash. This mixture is used as the main material and cement is added as a binder at 10-30wt.% of the total weight and as a standard measure, 20wt.% suffices. A proper volume of water is further added thereto and the mixture is pelletized by a high-speed mixing pelletizer. The light weight material for buildings is thereby easily and economically produced without calcination.</p> |
