摘要
将一定煅烧制度下所得的轻烧白云石掺入硅酸盐水泥,研究了轻烧白云石对水泥物理、力学性能的影响,同时采用X R D,DT A对水泥的水化性能进行了研究。将掺入轻烧白云石水泥的力学性能与掺入活性氧化镁、石灰石以及白云石水泥的力学性能进行了对比后发现,轻烧白云石的掺入使得水泥能够获得比掺活性氧化镁和石灰石粉更好的力学性能,也显示了优于掺入白云石后水泥的力学性能。
The light-burnt dolomite was obtained according to controlling the calcining system and mixed into Portland cement,result in a cementitious material.The basic physical performance and mechanics performance of the cementitious material has been studied,and the hydrated performance of Portland cement was investigated by X-ray diffraction and DTA methods.At the same time,light-burnt dolomite was compared with active magnesia,limestone and dolomite as the admixture of cement.The results indicated that the strength of cementitious material including light-burnt dolomite was better than the strength of cementitious material including active magnesia and limestone,and superior to the strength of cement adding dolomite.
引文
[1]VUK T,TINTA V,GABROVSIEK R,et al.The effects of lime-stone addition,clinker type and fineness on properties of Port-land cement[J].Cement and Concrete Research,2001,31(1):135-139.
[2]TSIVILIS S,SOTIRIADIS K,SKAROPOULOU A.Thaumasiteform of sulfate attack(TSA)in limestone cement pastes[J].Jour-nal of the European Ceramic Society,2007,27(2-3):1711-1714.
[3]TSIVILIS S,BATIS G,CHANIOTAKIS E,GRIGORIADIS G,et al.Properties and behavior of limestone cement concrete and mortar[J].Cement and Concrete Research,2000,30(10):1679-1683.
[4]TSIVILIS S,CHANIOTAKIS B,BATIS G,et al.The effect ofclinker and limestone quality on the gas permeability,waterabsorption and pore structure of limestone cement concrete[J].Cement and Concrete Composites,1999,21(2):139-146.
[5]TSIVILIS S,CHANIOTAKIS,E,KAKALIA G,et al.An analysisof the properties of Portland limestone cements and concrete[J].Cement and Concrete Composites,2002,24(3-4):371-378.
[6]李步新,陈峰.石灰石硅酸盐水泥力学性能研究[J].建筑材料学报,1998(2):186-191.
[7]杨建森,张祖锦.石灰石硅酸盐水泥性能及其水化研究[J].水泥,1996(10):10-14.
[8]廉慧珍,童良,陈恩义.建筑材料物相研究基础[M].北京:清华大学出版社,1996.
[9]李北星,胡晓曼,陈娟,等.高掺量混合材复合水泥的水化性能[J].硅酸盐学报,2004,32(10):1304-1309.
[10]张月星,陆文雄,王律,等.复合矿物掺合料在水泥中水化机理的试验研究[J].粉煤灰综合利用,2006(3):15-17.
[11]TAYLOR H F W.Cement chemistry[M].Second Edition,1997.
[12]唐小丽,刘昌盛.重烧氧化镁粉的活性测定[J].华东理工大学学报,2001(4):157-160.
[13]刘文萍,熊利芝,彭治国.超细氧化镁的直接沉淀法制备及其表征[J].吉首大学学报(自然科学版),2007,28(2):100-104.
