Subgrade stabilization between the Ancos and El Porvenir highways, incorporating lime and cement in the district of Santa Rosa, Ancash. (#1858)

Authors

Paredes Bautista, Edwar Jesus

Abstract

This study focuses on improving the stability of the subgrade of the road between Ancos and El Porvenir, in the district of Santa Rosa, Áncash, by incorporating a mixture of lime and cement to reduce the low cohesion of the soil during the rainy season. The problem arises from the deterioration of the terrain during humid periods, compromising the safe transit of people and vehicles. The main objective is to analyze the impact of stabilization on soil cohesion and bearing capacity by evaluating changes in consistency limits and the California Bearing Ratio (CBR).The methodology follows a quantitative and experimental approach, with laboratory tests using different percentages of lime and cement to measure changes in soil plasticity, density, and strength. Two representative soil types were selected: one clayey-sandy and another highly plastic. The results show that the addition of lime and cement reduces plasticity and significantly improves the CBR, especially in clayey-sandy soils. However, in highly plastic soils, the effectiveness is more limited, suggesting the need for complementary treatments to achieve significant improvements.