- 劉登賢，麻鵬飛，吳 鑫，陳瀏全，周楷文，譚先長
２０18年第1期
摘要
引用本文
摘 要：為了將工業副產品鋰渣應用到混凝土中，試驗分析了鋰渣的物相成分和化學組成，先將鋰渣單摻取代水泥，再將鋰渣分別與礦渣、粉煤灰雙摻到混凝土中，研究鋰渣對混凝土工作性能、力學性能、耐久性的影響。結果表明，鋰渣取代10％~20％的水泥后，混凝土和易性良好，但鋰渣摻量大于20%時，隨著鋰渣摻量的增大混凝土黏稠度增大。粉煤灰與鋰渣雙摻時，混凝土的工作性好于鋰渣與礦粉雙摻；鋰渣摻量在10%~40%時，符合混凝土早期凝結時間要求；混凝土吸水率隨著鋰渣摻量的增大先增大后減小，并隨著養護齡期的增加而降低；采用鋰渣與礦粉、粉煤灰雙摻技術，有助于提高混凝土的長期抗氯離子滲透性能。
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.
劉登賢,麻鵬飛,吳鑫,等.高性能鋰渣混凝土的研究及應用[J].混凝土與水泥制品,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.
