水泥的强度等级，指在标准条件下养护28天所达到的抗压强度。我国水泥的强度等级，硅酸盐水泥分为三个等级6个类型，42.5、42.5R、52.5、52.5R、62.5、62.5R，普通硅酸盐水泥分为两个等级4个类型，42.5、42.5R、52.5、52.5R，其他四大水泥分3个等级6个类型。
实验对比表明：与强度等级为32 . 5的纯水泥钢渣混凝土对比，掺入钢渣粉的砼强度略有降低，但能改善混凝土的和易性。
By test analysis compared with strength degree 32.5 of cement, strength of steel slag concrete is slightly decreased, but its fluidity is improved.
本文通过试验确定赛柏斯、耐渗、JL三种水泥基渗透结晶型防水材料对混凝土的强度、抗渗性能和抗冻等级的改变。
The text overpass test to co (?) firm the effect of the three kind of cement based capillary crystalline waterproof material Xypex, Naishen, JL, which can modify the strength.
水泥混凝土路面因其具有强度高、稳定性好以及使用寿命长等优点，所以在高等级公路建设中应用较广泛。
Cement concrete pavement BECause of its high strength, good stability, as well as the advantages of long life, high-grade highway construction in the wider application.
应用推荐