Study on Permeation Grouting Using Cement Grout In Sandy Soil

Grouting is the process of ground improvement techniques which is used to improvise the foundation where there is loose state of the soil. Grouting can be classified as permeation grouting, compaction grouting or hydraulic fracturing. Permeation grouting is an effective way to send the grout into the ground without disturbing the soil structure. In this investigation, an attempt is made to study the effect of cement grout in improving the bearing capacity of the sandy soil. Cement grout with different ratio of 10:1 ( Water: Cement) , 9:1, 8:1, 7:1, 6:1, 5:1, 4:1 are injected into the soil. Grouting experiment is performed with perforated PVC pipe in a tank of 20cm x 20cm x 20cm sandy soil. To study the improvement in the strength property of the grouted soil the plate load test is performed with 5cm x 5cm plate on the grouted sand after 3 days curing and 7 days curing. The experimental results revealed that the increase in cement content increases load carrying capacity of the sandy soil.