標(biāo)題: ASTM C 457-2006 硬化混凝土中孔隙度和孔隙系統(tǒng)參數(shù)的顯微... [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-9-17 09:23 標(biāo)題: ASTM C 457-2006 硬化混凝土中孔隙度和孔隙系統(tǒng)參數(shù)的顯微... C457-98 Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete