COMPARATIVE ANALYSIS OF CONCRETE WITH OIL RESIDUES AND SETTING TIME RETARDER ADDITIVE FOR PAVEMENT APPLICATION.

Reference Presenter Authors
(Institution)
Abstract
04-023 Sherington Augusto Milani Bigotto Bigotto, S.M.(Universidade Estudual Paulista "Júlio de Mesquita Filho"); Fonseca, M.O.(Universidade Estudual Paulista "Júlio de Mesquita Filho"); Albuquerque, M.F.(Universidade Estadual Paulista);
The volume of oil’s residue produced in Brazil is increasing and consequently the disposal of these materials in nature becomes more complicated. According to the Brazilian Association for Sensitization, Collection and Recycling of Edible Oil Residues (ECOLEO), oil is the biggest polluter of fresh and salt water in the most densely populated regions of Brazil. In addition to the edible oil residue, there is also a large amount of the lubricating oil residue. Usually, concrete applied to parking floors, sidewalks, gutters, walls of partitions on roads and avenues, among others, is an option for the uses of residues of these oils, reducing the environmental impact caused by bad destination of these wastes. In this work the hydration time of the concrete with the addition of cooking oil residue, retardant additive was compared with the concrete with lubricating oil and the conventional concrete. In addition, were performed tests to the setting time, axial compressive strength, modulus of elasticity and flexural tensile strength of the concrete samples with residual oils and with retardant additive. In the samples with retardant additive, there was an increase in axial and diametral compression resistance in relation to the reference concrete, while the traces with the addition of oil residues had their resistance decreased. The flexural tensile strength test presented the best resistance when compared to the reference concrete. The modulus of elasticity decreased for the traces with added oil and increased to the concrete with an addition of the setting time retarder. Setting time increased mainly for concrete with an addition of cooking oil while for the concrete with an addition of lubricating oil residue the increase was small.
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