Study on Hydration Properties of Microwave-Activated Lithium Slag Based Cement
In order to improve the utilization rate of lithium slag in cement-based materials,effects of different microwave power on pozzolanic activity of lithium slag were investigated.The results showed that microwave treatment promoted the decomposition of gypsum and spodumene in the lithium slag improved the pozzolanic activity of the lithium slag,and more hydration products were formed in the lithium slag-cement composite system.With the increase of microwave power,the second heat release peak of lithium slag composite cement hydration appeared in advance,and the peak value increased,the total heat release from hydration also increased significantly.Compared with cement mortar incorporated with raw lithium slag,the compressive strength of lithium slag composite cement mortar activated by 40%power microwave increased by 15.2%,5.0%and 13.1%at 3 d,7 d and 28 d,respectively.