| 摘要 |
<p>An improved lighterweight cementitious product made up of an aqueous cementious mixture using cement and expanded shale, clay and slate mix, that can incorporate fly ash, lime, and the weight saving component, which is micronized polystyrene particles having particle sizes in the range of 50 to 2000 microns, and characterized by having water contents in the range of from about 0.5 % to 50 % v/v. The ultra low water compositions can be extruded and can be molded under high pressure.</p> |
