传统的水泥水玻璃双液注浆材料的优点在于凝胶时间短、早期的抗压强度大，所以在加固软弱地层或堵漏中被广泛的使用。本文在传统材料的基础上，加入了粉煤灰、矿粉等工业废渣，提出一种复合水泥基-水玻璃双液注浆材料，并对新型材料的胶凝性能和28 d抗压强度进行研究，并通过改变水玻璃体积掺量、波美度和矿物掺合料比例来研究浆液凝胶时间及28 d抗压强度的变化规律；当水玻璃体积掺量为25％时，浆液硬化结石体强度最大，使用更大波美度的水玻璃或者配制合适比例的水泥、粉煤灰和矿粉的复合水泥基A液都可以提升双液注浆材料的抗压强度。
Traditional cement silicate double solution grouting material has many advantages which contain the short gel time and large early compressive strength .So this material is widely used in consolidating soft formation or plugging .Based on the traditional material , fly ash and slag in cement-based was added and a kind of new complex cementitions-sodium silicate two-shot grouting materials was put out .This new material's cementing performance and 28 d compressive strength were studied .By changing the sodium silicate content , baume and mineral admixtures to study the variation of slurry's cementing performance and 28 d compressive strength .The compressive strength of stone body is the largest when the dosage of sodium silicate is 25%.Increasing modulus of sodium silicate or cement fly ash slag which are mixed can improve the compressive strength of stone body .
参考文献
| [1] | P. CROCE;G. MODONI.Design of jet-grouting cut-offs[J].Ground improvement,20071(1):11-19. |
| [2] | Peter Persoff;John Apps;George Moridis;Joyce M. Whang.Effect of Dilution and Contaminants on Sand Grouted with Colloidal Silica[J].Journal of geotechnical and geoenvironmental engineering,19996(6):461-469. |
| [3] | 安妮;赵宇;石文广;孙红月;朱汉华.水泥-水玻璃双液浆的特性试验研究及应用[J].铁道建筑,2011(12):128-130. |
| [4] | 陈琳;潘如意;沈晓冬;马素花;黄叶平;钟白茜.粉煤灰-矿渣-水泥复合胶凝材料强度和水化性能[J].建筑材料学报,2010(3):380-384. |
| [5] | 陈剑雄;张兰芳;李世伟.粉煤灰对碱矿渣混凝土性能的影响[J].粉煤灰综合利用,2006(1):15-17. |
| [6] | 李丙明;李兆锋;魏莹;陈洪伟.钢渣-矿渣-粉煤灰复合微粉的活性试验研究[J].硅酸盐通报,2009(3):589-593,604. |
| [7] | 王红喜;张高展;丁庆军;胡曙光;谭顺辉;李勇军.碱激发-工业废渣双液注浆材料性能研究[J].建筑材料学报,2007(3):374-378. |
| [8] | 杨晓光;倪文;张筝;徐丽;王亚利;杨海龙.碱激发对粉煤灰活性的影响[J].北京科技大学学报,2007(12):1195-1199. |
| [9] | 杨米加;陈明雄;贺永年.注浆理论的研究现状及发展方向[J].岩石力学与工程学报,2001(6):839-841. |
| [10] | 李长洪 .松散岩体注浆理论及工程应用研究[D].北京科技大学,2000. |
| [11] | 王广国;杜明芳;苗兴城.压密注浆机理研究及效果检验[J].岩石力学与工程学报,2000(5):670-673. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%