通过在粉煤灰硅酸盐混合水泥中掺加0.5～4%的氯化钠进行的试验研究表明,氯化钠掺量在1%以下时水泥石早期强度显著提高,具有明显的活性激发和早强作用;在水泥中加入的Cl-约86～90%时,与硅酸盐水泥和粉煤灰形成化学结合状态,4.5～7.7%为游离状态,1.4～5.9%为物理吸附状态;Cl-加入后,水泥石中新形成氯铝酸钙产物,但水泥石中的氯铝酸钙往往与AFm、C-S-H混合生长,未发现单独生成的氯铝酸钙.
参考文献
| [1] | Nevillae A .Chloride attack of reinforced concrete an overview[J].Materials and Structures,1995,28:63-71. |
| [2] | Arya C;Buenfeld N R;New man J B .Factors influencing chloride_binding in concrete[J].Cement and Concrete Research,1990,20:291-300. |
| [3] | Herrision W H .Effect of chloride in mix ingredients on sulfate resistance of concrete[J].Magazine of Concrete Research,1990,152(42):113-126. |
| [4] | Page C L;Short N R;Holden W R .The influence of different cement on chloride_induced corrosion of reinforcing steel[J].Cement and Concrete Research,1986,16:264-272. |
| [5] | Dhir R K;Byars E A .PFA concrete chloride diffusion rates[J].Magazine of Concrete Research,1993,162(45):1-9. |
| [6] | Jin Z Q;Sun W;Zhang Y S .Interaction between sulfate and chloride solution attack of concrete with and without fly ash[J].Cement and Concrete Research,2007,37:1223-1232. |
| [7] | T. Matschei;B. Lothenbach;F.P. Glasser .The AFm phase in Portland cement[J].Cement and Concrete Research,2007(2):118-130. |
| [8] | 王绍东,黄煜镔,王智.水泥组分对混凝土固化氯离子能力的影响[J].硅酸盐学报,2000(06):570-574. |
| [9] | 刘芳,金伟良,张奕.实际混凝土结构中氯离子结合理论对比分析[J].新型建筑材料,2007(06):13-17. |
| [10] | 管学茂,孙国文,王玲,姚燕.高性能水泥基材料结合外渗氯离子能力的测试方法对比[J].混凝土,2005(11):36-39,45. |
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%