This standard specifies the cement fineness screening test method by means of the standard sieves of 45 μm square mesh and 80 μm square mesh.
This standard is applicable to Portland cement,ordinary Portland cement,slag Portland cement,pozzolanic Portland cement,fly ash Portland cement,compound Portland cement and other kinds of cement and powdery materials to which this standard is specified to apply.
定价: 372元 / 折扣价: 317 元 加购物车
This standard specifies the terms and definitions,composition and materials,classification,technical requirements,test methods,inspection rules,packaging,marking,transportation and storage,etc.for road Portland cement.
This standard is applicable to the production and application of road Portland cement in road surface,airport runway surface,and other engineering roads with high requirements for wear resistance and drying shrinkage resistance.
定价: 312元 / 折扣价: 266 元 加购物车