Effect of Chemical Agents and Hydrogen Potential (pH) of Sandy Soils on Continuous Foundations in Housing Modules

Díaz-García G.; Cesar Chinchay Castillo P.; Antonio Sebastian Vergaray P. · Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology (2025) · DOI: 10.18687/laccei2025.1.1.1722

Resumen

The influence of chemical agents in soft soils on the durability of continuous foundations in social housing modules is a topic of growing importance. This study experimentally analyzed the chemical composition of soil samples, evidencing acidity levels such as the hydrogen potential (pH), chlorides, and sulfates. Furthermore, the compressive strength of the extracted cores from the continuous foundation was evaluated, showing adequate results despite a slight decrease compared to optimal standards. Additionally, carbonation tests revealed a pH above 9.5, demonstrating good resistance to corrosion by carbon dioxide (CO2). These findings underscore the necessity of conducting preliminary soil evaluations prior to construction, highlighting the importance of appropriately selecting materials to ensure structural durability. Overall, the results indicate that under the studied conditions, sandy soils with negligible moisture have minimal influence on the deterioration of concrete foundations, thereby ensuring the stability of buildings in such areas. This research paves the way for future investigations into the interaction between concrete and different soil types in contexts with aggressive chemical agents.

Instituciones: Universidad César Vallejo