Experimental Analysis on the Friction Performance of Improved Soil Stabilized by Lime in Subgrade

With the continuous improvement of transportation infrastructure construction, it not only improves the road traffic conditions, but also promotes the development of the national economy. After many highways are put into use, it is found that although the quality and performance meet the design requirements, the anti-skid performance of the pavement gradually decreases with the wear of vehicles. Therefore, it is considered to add a curing agent in the base material to improve the anti-skid and wear resistance of the pavement. The viscosity of concrete strength is reduced and the internal friction angle is also reduced due to the continuous dry-wet cycle. The above reaction changes prove that the quality of concrete strength can be predicted according to the decline rate of elastic modulus, and the quality and acceptance of subgrade engineering can be technically demonstrated. In this paper, based on the influence of solidified polymer on the quality and performance of pavement base material, according to the physical structure and chemical reaction changes of different polymers on pavement base material, we use different additives such as lime to form adhesion between concrete materials. We hope to improve the wear resistance and permeability of polymer on pavement base material. According to the changing trend of the strength of the pavement base material caused by the different proportions of the stabilizer in the conjugate test, we designed the soil-lime solidification stabilizer. We further optimized the selected materials and the proportion scheme to meet the requirements of the strength, permeability, durability, and other indicators of different roadbeds, which is to improve the wear resistance of the roadbed and form the corresponding material proportion model. Through experimental analysis, from the test parameters and microscopic observation, we prove that the curing agent has a setting effect on the pore structure of the concrete bonding surface, which provides a scientific basis for solving the requirements of complex pavement in highway construction.