Effect of Cement on Geo-Technical Characteristics of Granular Soil

The study evaluated the chemical stabilization of sand with cement toward application in improving sub-base of road, as constructive alternative of low cost. The study was carried out with natural available sand from the Jabalpur(MP) region, in this non-cohesive material sand is pre-dominant, and Ordinary Portland cement(OPC) is used as stabilizing agent as a quantity of 4%, 6%, 8%, 10% under dry weight of sand. Unconfined compressive strength tests were conducted with curing period of 7 days and modified proctor test is conducted for different % of cement. The sand- cement mixture presented higher unconfined compressive strength (UCS) than the locally available soil reaching a highest value of 2.21mpa with the cement quantity of 10%. In many cases locally available aggregate not meeting the specification and aggregates that meet the specifications may be imported to the site at considerable expenses. The use of locally available granular soil as aggregates in flexible pavement and any other field of construction is one of the best alternate to reduce the cost of construction and a lack of quality aggregate sources. Among various methods of Stabilization of soils to improve strength and durability often relies on additives such as cement, lime, fly ash etc. among various available stabilization techniques, Cement stabilization is one of the best option as it suits to granular soils.