A method of manufacturing a porous cementitious product, which method comprises: forming a cementitious premix; casting the premix in a desired configuration; generating gas bubbles within the premix; and curing the premix, wherein gas bubbles are generated and/or collapsed at specific locations within the premix in order to produce a porosity profile along a cross-section of the product such that the product comprises a relatively low density core region and higher density outer regions.A method of manufacturing a porous cementitious product, which method comprises: forming a cementitious premix; casting the premix in a desired configuration; generating gas bubbles within the premix; and curing the premix, wherein gas bubbles are generated and/or collapsed at specific locations within the premix in order to produce a porosity profile along a cross-section of the product such that the product comprises a relatively low density core region and higher density outer regions.
申请公布号
CA2553198(C)
申请公布日期
2012.08.07
申请号
CA20042553198
申请日期
2004.01.15
申请人
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
发明人
MAK, SWEE LIANG;SHAPIRO, GENRIETTA;RITCHIE, DAVID JAMES BELL;BANKS, RODNEY WILLIAM;QUICK, GEOFFREY WILLIAM