中文摘要：

针对宜春地区的锂长石矿粉、通过“锂云母固氟重构综合提取碳酸锂技术”提取碳酸锂之后产生的灰色锂云母渣和通过“变温碳化法”制备碳酸锂产生的白色锂云母渣进行研究。此3种粉末均作为掺合料以掺量10％、20％、30％和40％掺入水泥胶砂试件，且同条件下浇筑和养护掺有粉煤灰和硅灰的水泥胶砂试件作为对比组。标准养护至规定龄期后进行抗折和抗压试验；试验结果表明：锂长石矿粉的掺人极大的降低了胶砂试件的抗折强度和抗压强度；白色锂云母渣作为掺合料具有明显的优势，掺量在20％以内时，掺白色锂云母渣胶砂试件早期强度优于掺有其他掺合料的试件，后期强度亦与掺粉煤灰试件相当，且优于掺其他掺合料的试件。掺灰色锂云母渣试件虽早期强度具有优越性，但后期强度却不具优势。

英文摘要：

The aim of this experiment is to validation the feasibility of lithium - feldspar powder,gray lepidolite slags and white lepido- lite slags from Yichun as themineral admixtures.The gray Lepidolite slags is the by -product of ＂The technology of comprehensive extraction of lithium carbonate from lepidolite after reconstruction and fluorine - fixing treatment＂, and the white lepidolite slags is the by - product of ＂carbonization in variable temperature＂ .Preparing 3 groups of cement mortar samples for the three kinds of mineral ad- mixtures, each groups contain 4 samples with the dosages of 10%, 20%, 30% and 40% respectively. Besides, under the same condition, pouring and maintaining the other cement mortar samples which contains the fly ash and silica fume as the control groups. The test pieces is kept still to the determinate time by adopting a standard curing method, and then to test the flexural and compressive strength. Research results show that the infiltration of the lithium - feldspar powder reduce the flexural and compressive strength of the cement mortar sample greatly. Compared with lithium - feldspar powder, the white lepidolite slags as the mineral admixtures has obvious advan- tages in that when the dosages is within 20%, the result is that the samples contain the white lepidolite slags is better than any other sampies at early strength,though at late stage its strength is just the same as the sample which contain the fly ash,and it＇s still better than other samples.The gray lepidolite slags ones have remarkable superiority in the early strength ,but do not in the late strength.