Waste Soda-Lime Glass As Reinforcement In The Philippine Cohesive Soil

Soil reinforcement is defined as a technique to improve the characteristics of soil. The process includes mixing or blending reinforcing materials to soil to improve its needed properties. There are different methods used in reinforcing soil throughout history, however, some are costly and irreproducible. Waste materials are hazards to the environment; however, they can be helpful when properly mitigated. The problems regarding waste products are on its peak. Soda- lime glasses or soft drink bottles are waste materials and have been proved efficient in reinforcing cohesive soils. They are economical and reproducible. This research study investigates the effect of soda-lime glass powder as reinforcement in cohesive soils. The- sail sample- was clayey which was extracted from Purok 16, Barangay Tinagacan, General Santos City at a depth of one meter below the ground. Four samples were subjected to the following mixtures: soil without glass powder, 90% soil and 10% glass powder, 85% soil and 15% glass powder, and 80% soil and 20% glass powder. These treatments were conducted through a series of tests such as Atterberg Limit Test, Compaction Test, Sieve Analysis, and Unconfined Compression Test. It has been found that the effect of glass powder reinforcement on the physical, index and mechanical properties of soil increases as the percentage of reinforcement increases. Moreover, the test result came up for a conclusion that glass powder is an effective additive in soil reinforcement. Furthermore, the unconfined compressive strength of reinforced soil after the 28th day of curing can sustain loads for construction but is limited for small constructions only, thus the longer the curing period, the higher the compressive and shear strength of the soil attains.