The use of stabilizers to improve the strength of the soil foundation of roads

Abstract

This article describes the improvements, strength and deformation characteristics of loess soils used in the construction of road pavements with a stabilizer T-RRP. With the help of laboratory analyzes, a recommendation was developed on the use of stabilizers to improve the properties of loess soils used in the calculation of the pavement design. The use of stabilizers in road construction, in particular T-RRP, gives the following advantages: 1. Time savings during construction; 2. Saving ordinary building materials; 3. Shipping costs are eliminated; 4. Saving financial work afterwards; 5. Lack of repair later; 6. Minimal use of machines. 7. Minimal use of working force. The degree of adequacy of the project. Interested enterprises in the project are: LLC «FAYANTRANS», PEC «Avtomagistral», SRRCO «Uzavtoyul». The significance of the final results: the proposed methods of road construction, compared with traditional methods, gives the following advantages: the permissible load on roads constructed with the use of stabilizers in more than doubled compared to roads built in the usual way; reducing the thickness of the pavement by more than 25 % on the soil treated with stabilizers; built with the use of stabilizers roads increase their strength year after year; strength and stability of water-physical properties of clay soils used in the construction of roads, airfields, hydraulic structures; building with the use of stabilizers meets the requirements of ecology since it doesn’t produce harmful effect on groundwater. In addition to the advantages noted above, the use of stabilizers allows: increase the service life of coatings; get savings on maintenance and repair; increase the pace of construction; improve the quality of structures being built.