砖体积为1243.38cm^31、2450/1243.38＝1.97g/cm^33、含水2800-2450＝350g，吸水率350/2450＝14.3%2、空隙体积等于水体积 350g/1g/cm^3=350cm^3空隙率350/1243.38＝28.1%
