| 摘要 |
A cementitious composition for the molding of relatively light-weight, heat-insulative, nailable, structural units such as bricks, blocks, roof decking, etc. The composition comprises an inorganic cementitious settable admixture within which is incorporated a significant proportion of a waste polyethylene consisting substantially of polyethylene derived from the reclamation of cellulosic fiber from fiberboard to which a polyethylene coating material was previously adhered. Additionally, the composition comprises a significant proportion of industrial waste commonly termed stack dust and/or fly ash as aggregate.
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