研究了偏高岭土对碱矿渣水泥强度的影响规律和不同养护条件下碱-矿渣-偏高岭土复合胶凝材料(M-AAS)的强度发展情况.结果表明:80%湿度和40℃温度下,掺入适量偏高岭土能提高碱矿渣水泥的强度性能,最佳掺量为20%左右;对于掺20%偏高岭土的碱-矿渣-偏高岭土复合胶凝材料,在80%湿度下,养护温度的提高有利于抗压强度的发挥,但对抗折强度的发挥不利;在80%湿度和20℃温度下,复合材料的抗折强度出现倒缩,对80%湿度养护和水中养护两种养护条件进行适当的组合,强度倒缩现象没有发生.
参考文献
| [1] | Shao-dong Wang et al.Hydration products of alkali activated slag.cement[J].Cement and Concrete Research,1995,25:561-571. |
| [2] | 张育才.对凝石技术本质的探讨[J].昆明冶金高等专科学校学报,2006(01):1-3,15. |
| [3] | H. Xu;J. S. J. V. Deventer .The geopolymerisation of alumino-silicate minerals[J].International Journal of Mineral Processing,2000(3):247-266. |
| [4] | T. Bakharev .Resistance of geopolymer materials to acid attack[J].Cement and Concrete Research,2005(4):658-670. |
| [5] | T. Bakharev .Durability of geopolymer materials in sodium and magnesium sulfate solutions[J].Cement and Concrete Research,2005(6):1233-1246. |
| [6] | Swanepoel JC.;Strydom CA. .Utilisation of fly ash in a geopolymeric material[J].Applied Geochemistry: Journal of the International Association of Geochemistry and Cosmochemistry,2002(8):1143-1148. |
| [7] | J.W. PHAIR;J.S.J. VAN DEVENTER .EFFECT OF SILICATE ACTIVATOR pH ON THE LEACHING AND MATERIAL CHARACTERISTICS OF WASTE-BASED INORGANIC POLYMERS[J].Minerals Engineering,2001(3):289-304. |
| [8] | 李玉香,傅依备,易发成,陈雅斓.碱矿渣-黏土复合胶凝材料水化物粉体对铯离子的吸附[J].硅酸盐学报,2005(10):1184-1188. |
| [9] | Qian Guangren;Li Yuxiang;Y i Facheng;Shi Rongming .Improvement of metakaolin on radioactive Sr and Cs immobilization of alkali-activated slag matrix[J].Journal of hazardous materials,2002(3):289-300. |
| [10] | Luqian Weng;Kwesi Sagoe-Crentsil;Trevor Brown .Effects of aluminates on the formation of geopolymers[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2005(2):163-168. |
| [11] | C Famy et al.Effect of an early or late heat treatment on the microstructure and composition of inner C-S-H products of Portland cement mortars[J].Cement and Concrete Research,2002,32:256-278. |
| [12] | Della M Roy .Alkali-activated cements opporunities and chall-enges[J].Cement and Concrete Research,1999,29:249-254. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%