- 刘登贤，麻鹏飞，吴 鑫，陈浏全，周楷文，谭先长
２０18年第1期
摘要
引用本文
摘 要：为了将工业副产品锂渣应用到混凝土中，试验分析了锂渣的物相成分和化学组成，先将锂渣单掺取代水泥，再将锂渣分别与矿渣、粉煤灰双掺到混凝土中，研究锂渣对混凝土工作性能、力学性能、耐久性的影响。结果表明，锂渣取代10％~20％的水泥后，混凝土和易性良好，但锂渣掺量大于20%时，随着锂渣掺量的增大混凝土黏稠度增大。粉煤灰与锂渣双掺时，混凝土的工作性好于锂渣与矿粉双掺；锂渣掺量在10%~40%时，符合混凝土早期凝结时间要求；混凝土吸水率随着锂渣掺量的增大先增大后减小，并随着养护龄期的增加而降低；采用锂渣与矿粉、粉煤灰双掺技术，有助于提高混凝土的长期抗氯离子渗透性能。
Abstract: To apply lithium slag(a kind of industrial by-product) in concrete, the phase composition and chemical composition of lithium-slag are analyzed. Firstly, the cement is replaced with single doped lithium slag. Then the influence of lithium slag on the workability, mechanical properties, durability of concrete is carried out with the lithium slag and slag, fly ash respectively double mixing. The result shows that when the dosage is 10%~20%, it can improve the workability of concrete. But when the dosage is more than 20%, concrete viscosity increases with the increasing of lithium-slag content. The workability of lithium-slag and fly ash mixed is better than that of the mixture of lithium slag and mineral powder. When the dosage is 10%~40%, it can conform to the requirements of the setting time of the early concrete. The water absorption of concrete increases first then decreases with the increase of lithium-slag content, and reduce with the increase of curing age. Using the double mixing technology of the lithium-slag and ash, fly ash can improve the chloride resistance permeability of concrete.
刘登贤,麻鹏飞,吴鑫,等.高性能锂渣混凝土的研究及应用[J].混凝土与水泥制品,2018(1):96-100.
LIU D X,MA P F,WU X,et al.Study and Application of High Performance Lithium-slag Concrete[J].China Concrete and Cement Products,2018(1):96-100.
