Strength and durability studies of waste nylon cable ties concrete

Abstract

Of late, concrete technology is changing at a fast phase. Concrete is a flexible material and several attempts are being made to incorporate different materials specially industrial wastes as substitutes to the existing ingredients to enhance the quality of concrete. On the other hand environmentally sustainable concrete is in great demand. As plastic waste disposal has become a major problem for the modern day society, concrete has played a vital role as a dumping material. Plastic can either be used in concrete either as a partial substitute for fine aggregate or as an additive.Plastic wastes are present in different forms. This study focuses on use of waste Nylon Cable Ties (NCT) as a partial replacement of fine aggregates (1%, 2%, 4%) and as addition (0.5%, 1%, 1.5%) for M40 grade of concrete. Different tests like flexural, split tension, compression,effects of temperature and permeability test are being carried out. It was observed that 2% replacement of M-sand by waste NCT gives better results compared to 1% and 4% replacement of waste NCT. Addition of 1% NCT gives maximum compression, spilt tensile strength and flexural strength in concrete. When compared to replacement of fine aggregates by waste NCT, addition of waste NCT is found to give better strength.The permeability of the specimens was reduced for both replacement and addition of NCT ties. However permeability was found to be lesser for addition of NCT ties. But the performance of these specimens was not very satisfactory for either replacement or addition of NCT ties.