Table 3: Non-lateral confined compressive strength.

Grouting type Non-lateral compressive strength (MPa)
3(d) 7(d) 14(d) 28(d)
Cement-sodium silicate slurry (0.8:1) 5.325 6.760 10.614 8.301
Optimized composite slurry (Group 3) 1.814 2.097 2.851 5.085