Study of used oil on properties of concrete for pavement

• Grant number: 13/04376-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2013
• End date: April 30, 2014
• Field of knowledge: Engineering - Civil Engineering - Transportation Infrastructure
• Principal Investigator: Maria da Consolação Fonseca de Albuquerque
• Grantee: Marcelo Santana
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

The volume of used oil produced in Brazil is ever increasing and, consequently, the disposal of these materials in nature becomes progressively more complicated. According to the Brazilian Association for Awareness, Collection, and Recycling of Waste Cooking Oil (EcoLeo), oil is the biggest polluter of water in the densest regions of Brazil. It is believed that the inclusion of oil for application to the concrete pavements of parking, among others, can be an option for disposal of waste oil, reducing the environmental impact. It has been observed that the addition of oil to the concrete decreases the strength and elastic modulus, but increases the incorporation of air and hence the fracture strain, which means a material is more ductile. This is important for pavement because a material more ductile tends to present bigger difficulty to catastrophic crack propagation and consequently increases the life of the pavement because you can do the maintenance before a sudden rupture. The aim of this work was to study the influence of the addition of vegetable oil on the behavior of the fresh and hardened concrete, assessing the slump, the setting time, modulus of elasticity, amount of displacement of the machine at rupture, and tensile strength in compression and bending. (AU)