Improvement of Bearing Capacity with Cement, Lime and Brick Waste in Soft Soils for Foundation Purposes

The project improves the bearing capacity with brick waste, cement grout and limewater in soft soils for foundation purposes in a 10,110.00 m² area located in Jr. Humboldt in the district of Chilca due to the large presence of fine soils in that locality. The population builds informally on these poor soils without knowing the dangers that this can cause on their homes. In order to reach the objective of the investigation, the physical and mechanical properties of the soil of the district of Chilca were determined by means of tests of granulometry, specific weight, consistency limits and direct shear, then the admissible bearing capacity was found through Terzaghi's method. It was found that the soil had more than 50% of fines, being a clayey and silty soil with an average low bearing capacity of 0.75 kg/cm². When the soil was treated with 15% of brick waste, the bearing capacity improved with a value of 0.82 kg/cm², with 15% of limewater a value of 0.85 kg/cm² was obtained and finally with 15% of cement grout a value of 0.90 kg/cm² was obtained, gaining up to 23.29% compared to the standard sample. Finally, 15% of cement grout was the recommended treatment to be used because that percentage was the best option to obtain the highest bearing capacity compared to brick waste and limewater, but to achieve better results, it is recommended to use cement grout from 15% onwards.