Water shutoff model test in water-rich sandy stratum by phosphoric acid-water glass grout

The rheological behavior of phosphoric acid-water glass grout in different mixing ratios was studied. Grout made of water glass with Baume degree of 20° and 13.4% phosphoric acid by 1:1 volume ratio is found to be more effective in stopping water. Laboratory model test of water shutoff by grouting w...

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Bibliographic Details
Published in:Journal of Central South University 2014-10, Vol.21 (10), p.4014-4020
Main Authors: Yang, Yu-you, Ni, Mao-guang
Format: Article
Language:English
Subjects:
Engineering
Metallic Materials
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Summary:The rheological behavior of phosphoric acid-water glass grout in different mixing ratios was studied. Grout made of water glass with Baume degree of 20° and 13.4% phosphoric acid by 1:1 volume ratio is found to be more effective in stopping water. Laboratory model test of water shutoff by grouting was conducted. Test results show that the diffusion length and water cutoff effect of the grout are significantly improved as the grout head is raised, due to the dilution of underground water, and it takes the grout longer than its gel time to cut off water.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-014-2390-9