<p>This invention relates to a formulation with the addition of low density additives of volcanic ash, hollow ceramic microspheres or a combination of microspheres and volcanic ash or other low density additives into cementitious cellulose fiber reinforced building materials. This formulation is advantageously lightweight or low density compared as compared to current fiber cement products without the increased moisture expansion and freeze-thaw degradation usually associated with the addition of lightweight inorganic materials to fiber cement mixes. The low density additives also give the material improved thermal dimensional stability.</p>
申请公布号
DE60129538(T2)
申请公布日期
2008.04.10
申请号
DE2001629538T
申请日期
2001.03.09
申请人
JAMES HARDIE INTERNATIONAL FINANCE B.V.
发明人
GLEESON, JAMES A.;PARADIS, KALYNNE H.;SLOANE, BRIAN P.;MELMETH, DAVID L.;SELIGMAN, DEAN M.