不同细度粒化电炉磷渣粉对水泥性能影响与改良
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摘要
对不同粉磨细度、不同品质的电炉磷渣粉对水泥性能影响及其活性改良进行了研究比较。结果表明,磷渣粉比表面积由300 m~2/kg增至600 m~2/kg,水泥后期强度显著提高,磷渣粉中玻璃体含量高和P_2O_5含量较低时水泥28 d强度与同掺量矿渣水泥强度接近,90 d时甚至超过矿渣水泥;随着磷渣粉比表面积增大及其掺量的增加,水泥凝结时间显著延长;磷渣粉细度变化对水泥胶砂流变性没有较大影响,水泥与外加剂相容性有所改善;磷渣粉中少量钙质和硅铝质改良材料的掺加,可显著缩短磷渣水泥凝结时间,有利于促进水泥早期及后期强度的发展,并可有效降低混凝土收缩率。
The Effect of granulated furnace phosphorus slag powder with different fineness and different quality on property of cement and improvement of activity of cement were studied. The results showed that with increasing of specific surface area of phosphorus slag powder from 300 m~2/kg to 600 m~2/kg, the later strength of cement would be significantly improved.When the phosphorus slag powder had high noncrystal material content and low P_2O_5 content, the 28 d strength of cement approached to the 28 d strength of cement with the same slag content, and the 90 d strength of cement exceeded that of slag cement. With the increasing of the phosphorus slag powder specific area and phosphorus slag powder content in cement, the setting time of cement was increased significantly, and it had little effect on the rheologic property of cement mortar and improved the compatibility of cement with additive. The addition of a small amount calcium and silicon aluminum modified materials could shorten the setting time of cement and improve the early and late strength of cement, and it could reduce concrete shrinkage efficiently.
The Effect of granulated furnace phosphorus slag powder with different fineness and different quality on property of cement and improvement of activity of cement were studied. The results showed that with increasing of specific surface area of phosphorus slag powder from 300 m~2/kg to 600 m~2/kg, the later strength of cement would be significantly improved.When the phosphorus slag powder had high noncrystal material content and low P_2O_5 content, the 28 d strength of cement approached to the 28 d strength of cement with the same slag content, and the 90 d strength of cement exceeded that of slag cement. With the increasing of the phosphorus slag powder specific area and phosphorus slag powder content in cement, the setting time of cement was increased significantly, and it had little effect on the rheologic property of cement mortar and improved the compatibility of cement with additive. The addition of a small amount calcium and silicon aluminum modified materials could shorten the setting time of cement and improve the early and late strength of cement, and it could reduce concrete shrinkage efficiently.
引文
[1]冷发光,冯乃谦.磷渣综合利用的研究和应用现状[J].中国建材科技,1999(3):43-46.
[2]曹庆明.磷矿渣-新型混凝土掺合料的应用[J].水力水电科技进展,1999,19(2):61-63.
[3]陈霞,曾力,方坤河.关于磷渣粉应用问题的探讨[J].混凝土,2007(2):41-44.
[4]林育强,李家正,杨华全.磷渣粉替代粉煤灰在水工混凝土中的应用研究[J].长江科学院报,2009,26(12):93-97.
[5]刘冬梅,方坤河,杨华山.磷渣掺合料及其对水泥水化性能的影响[J].水泥工程,2007(2):74-77.
[6]翟红侠,缪绍锋.磷渣硅酸盐水泥水化反应机理研究[J].合肥工业大学学报,1998,21(2):132-136.
[7]胡鹏刚,徐德龙,宋强,等.磷渣掺合料对水泥混凝土性能的影响及机理探讨[J].混凝土,2007(5):48-52.
[8]魏莹,李兆锋,李丙明,等.磷渣对水泥混凝土性能的影响及机理探讨[J].硅酸盐通报,2008,27(4):822-826.
[9]宋中南,石云兴.矿物微细粉复合效应对混凝土工作性与流变性能的影响[J].混凝土,2003(l):16-18.
[10]徐浩.超细磷矿粉对混凝土性能的影响[J].施工技术,2003,32(4):22-23.
[11]高培伟,张德成,冯乃谦.磷渣超细粉对高性能混凝土强度与耐久性的影响[J].山东建材学院学报,1998,6(S1):130-134.
[12]刘秋美,曹建新,杨林谦.磷渣粉对高性能混凝土强度与耐久性的影响[J].混凝土,2007(6):54-62.
[13]陈明,孙振平,刘建山.磷渣活性激发方法及机理研究进展[J].材料导报,2013,27(11):112-116.
[14]徐迅,卢忠元,严云.磷渣粉对硅酸盐水泥水化特性的影响[J].材料导报,2008,22(12):336-339.
[15]曾力,戈雪良.磷渣粉在复合胶凝材料中的水化特性[J].武汉大学学报(工学版),2010,43(3):336-339.
[16]戈雪良,陆采荣,梅国兴.磷渣粉颗粒分布对水泥胶凝体系力学性能的影响[J].材料导报,2016,30(6):140-144.
[17]史才军.磷渣活性激发的研究[D].南京:南京工学院,1987.
[18]毛良喜.磷渣水泥的研究[D].南京:南京化工大学,1997.
[2]曹庆明.磷矿渣-新型混凝土掺合料的应用[J].水力水电科技进展,1999,19(2):61-63.
[3]陈霞,曾力,方坤河.关于磷渣粉应用问题的探讨[J].混凝土,2007(2):41-44.
[4]林育强,李家正,杨华全.磷渣粉替代粉煤灰在水工混凝土中的应用研究[J].长江科学院报,2009,26(12):93-97.
[5]刘冬梅,方坤河,杨华山.磷渣掺合料及其对水泥水化性能的影响[J].水泥工程,2007(2):74-77.
[6]翟红侠,缪绍锋.磷渣硅酸盐水泥水化反应机理研究[J].合肥工业大学学报,1998,21(2):132-136.
[7]胡鹏刚,徐德龙,宋强,等.磷渣掺合料对水泥混凝土性能的影响及机理探讨[J].混凝土,2007(5):48-52.
[8]魏莹,李兆锋,李丙明,等.磷渣对水泥混凝土性能的影响及机理探讨[J].硅酸盐通报,2008,27(4):822-826.
[9]宋中南,石云兴.矿物微细粉复合效应对混凝土工作性与流变性能的影响[J].混凝土,2003(l):16-18.
[10]徐浩.超细磷矿粉对混凝土性能的影响[J].施工技术,2003,32(4):22-23.
[11]高培伟,张德成,冯乃谦.磷渣超细粉对高性能混凝土强度与耐久性的影响[J].山东建材学院学报,1998,6(S1):130-134.
[12]刘秋美,曹建新,杨林谦.磷渣粉对高性能混凝土强度与耐久性的影响[J].混凝土,2007(6):54-62.
[13]陈明,孙振平,刘建山.磷渣活性激发方法及机理研究进展[J].材料导报,2013,27(11):112-116.
[14]徐迅,卢忠元,严云.磷渣粉对硅酸盐水泥水化特性的影响[J].材料导报,2008,22(12):336-339.
[15]曾力,戈雪良.磷渣粉在复合胶凝材料中的水化特性[J].武汉大学学报(工学版),2010,43(3):336-339.
[16]戈雪良,陆采荣,梅国兴.磷渣粉颗粒分布对水泥胶凝体系力学性能的影响[J].材料导报,2016,30(6):140-144.
[17]史才军.磷渣活性激发的研究[D].南京:南京工学院,1987.
[18]毛良喜.磷渣水泥的研究[D].南京:南京化工大学,1997.