引用本文摘 ? 要：為研究玻璃粉和鋼渣協同使用對自密實混凝土力學性能的影響，分別以20%、30%和40%的玻璃粉替代水泥，40%、60%和80%鋼渣替代細骨料，制備了9種不同配合比的自密實混凝土試件，通過坍落度試驗、J型環試驗、V型漏斗試驗和L型儀試驗測試了新拌自密實混凝土的工作性，并分析了硬化后自密實混凝土的抗壓強度、劈裂抗拉強度、抗折強度和彈性模量。結果表明，當玻璃粉和鋼渣協同使用時，可以顯著提高鋼渣替代細骨料的比例，替代比例高達80%；自密實混凝土的和易性隨著玻璃粉含量的增加而增大，隨鋼渣摻量的增加而減??；抗壓強度、劈裂抗拉強度、抗折強度和彈性模量隨鋼渣摻量的增加而增加，隨玻璃粉摻量的增加逐漸減小。自密實混凝土中鋼渣和水泥的最佳摻量分別為80%和20%。 Abstract: In order to study the effect of glass powder and steel slag on the mechanical properties of self-compacting concrete, 9 kinds of self-compacting concrete specimens with different mix proportions were prepared by using 20%, 30% and 40% glass powder instead of cement, 40%, 60% and 80% steel slag instead of fine aggregate, respectively. The workability of fresh self-compacting concrete was tested by slump flow test, J-Ring test, V-funnel test and L-box test, and the compressive strength, splitting tensile strength, flexural strength and elastic modulus of hardened self-compacting concrete were analyzed. The results show that when glass powder and steel slag are used together, the substitution ratio of steel slag to replace fine aggregate can significantly increase, and the substitution ratio is as high as 80%. The workability of self-compacting concrete increases with the increase of glass powder content, and decreases with the increase of steel slag content. The compressive strength, splitting tensile strength, flexural strength and elastic modulus increase with the increase of steel slag content, and decrease with the increase of glass powder content. The optimum content of steel slag and cement in self-compacting concrete is 80% and 20%, respectively.
孟繼軍.玻璃粉和鋼渣對自密實混凝土力學性能的影響[J].混凝土與水泥制品,2020(9):88-91. MENG J J.Effect of Glass Powder and Steel Slag on the Mechanical Properties of Self-compacting Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):88-91.