矿渣颗粒对砂浆强度的影响

Effects of Slag Particles on the Strength of Mortar

研究了矿渣颗粒(KZP)以不同比例替代河砂时,对砂浆流动度和强度的影响规律。结果表明,采用矿渣替代河砂,砂浆的3 d、7 d抗折强度和抗压强度降低;28 d抗压强度降低,但有一个先降低、后平缓增加的变化;而28 d抗折强度变化不大。用矿渣颗粒替代河砂能较大程度地提高7 d和28 d的强度增进率。

Here is a study on the affected changing regularity of the fluidity and strength of mortar, when slag particles take the place of river sand in different proportions. The results indicate that when slag is use to substitute for river sand, the 3 - day and 7 - day flexural strengths and compressive strengths of mortar are lowered. There is a change of a 28 - day reduction of compressive strength, but then a smooth increase. Using slag particles to take the place of river sand can raise the 7 - day and 28 - dayr strength increasing ratios to certain great degree.