11. Allow a few days for the sand to set then repeat the grouting process. 12. Its sky-blue tiled walls are stained and badly in need of grouting . 13. Compensations-grouting process " was applied. 14. Jet grouting is a specialty contracting business. 15. After a second grouting and refill operation, the embankment was deemed leak-free. 16. Soil Mechanics and Bachy Soletanche were responsible for the chemical grouting and for tunnelling work. 17. As pressure increased over time, the tunnel grouting failed and seepage more than quadrupled. 18. Another solution can be rock grouting pressure pumping portland cement slurry into weak fractured rock. 19. Grouting and patching may be required to fill any voids, holes, cracks or imperfections.20. Grouting developed as a repair technique.