Evaluation of soil mechanical resistance by inclusion of polymeric fibers

• Grant number: 16/09677-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2017
• End date: December 31, 2017
• Field of knowledge: Engineering - Civil Engineering - Geotechnical Engineering
• Principal Investigator: Paulo César Lodi
• Grantee: Naiara Pereira Pradela
• Host Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

This work will evaluate the effects of the mechanical strength of two kinds of soils by the inclusion of different sizes and percentages of polyethylene and polypropylene fibres. The soil will be used: (a) typical sandy soil in Bauru (SP) and (b) clayey soil in Piracicaba (SP). The fibres will have lengths of 10, 15, 20 and 30 mm and width 1.5 mm. These are randomly added to the soil in pre-determined percentage of 0.25, 0.50, 0.75, 1.0, 1.5 and 2.0% in relation to dry mass. Compaction tests will be carried out (Normal Energy) to obtain the optimal parameters of the soil. Using these values, the specimens will be molded to perform unconfined tests (with and without fibres). In that way, by comparison of the results, is possible to evaluate the influence that the size and percentage of the fibres can cause in the resistance of the studied soils. (AU)