Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study on Dispersion of Cement Grout in Sand considering Filtration Effect through the EDTA Titration Test
When grouting in a sand layer, the filtration of the layer on cement particles is an important aspect affecting the grout dispersion. However, few laboratory studies have been conducted to investigate the distribution of cement particles along the direction of dispersion. In this study, a group of laboratory tests were conducted by grouting in a sand layer under different levels of pressure. The distributions of cement particles in sand after curing were then measured using the EDTA titration test. The results show that, due to the filtration effect, the cement content along the radial direction of dispersion decreases nonlinearly in a reversed S shape. The filtration effect becomes more obvious when grouting with a higher grout concentration. With the decrease in grout concentration, the filtration effect becomes weak and cement particles could disperse farther in the sand layer, but the cement content in a farther location becomes lower and the improvement of the soil strength is limited. In the end, the measured results were compared with the calculated results according to an existing theoretical study and the trend reasonably matches with each other.
Study on Dispersion of Cement Grout in Sand considering Filtration Effect through the EDTA Titration Test
When grouting in a sand layer, the filtration of the layer on cement particles is an important aspect affecting the grout dispersion. However, few laboratory studies have been conducted to investigate the distribution of cement particles along the direction of dispersion. In this study, a group of laboratory tests were conducted by grouting in a sand layer under different levels of pressure. The distributions of cement particles in sand after curing were then measured using the EDTA titration test. The results show that, due to the filtration effect, the cement content along the radial direction of dispersion decreases nonlinearly in a reversed S shape. The filtration effect becomes more obvious when grouting with a higher grout concentration. With the decrease in grout concentration, the filtration effect becomes weak and cement particles could disperse farther in the sand layer, but the cement content in a farther location becomes lower and the improvement of the soil strength is limited. In the end, the measured results were compared with the calculated results according to an existing theoretical study and the trend reasonably matches with each other.
Study on Dispersion of Cement Grout in Sand considering Filtration Effect through the EDTA Titration Test
Daimao Li (Autor:in) / Xuhui Li (Autor:in) / Yu Hu (Autor:in) / Sizhan Zhang (Autor:in) / Chao Mei (Autor:in) / Hao Wu (Autor:in) / Xiaohui Sun (Autor:in) / Yanbin Fu (Autor:in)
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Cement grout transport within sand with fractal characteristics considering filtration
| Taylor & Francis Verlag | 2019
Remarks on filtration of cement grout
| Engineering Index Backfile | 1965
Evaluation of elementary filtration properties of a cement grout injected in a sand
| Online Contents | 2006
Evaluation of elementary filtration properties of a cement grout injected in a sand
| British Library Online Contents | 2006