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M. C. Choudhary ¹, Vanita Rai Aggarwal ¹

Affiliations
1 Department of Civil Engineering, M.M. University, Mullana, Ambala, Haryana, IN

Abstract

Concrete is a composite material consisting of cement, water and aggregates. Concrete is sufficiently strong in compression but weak in tension. Concrete is widely used as construction material worldwide. It consumes most of the natural aggregates. Due to high speed in development of infrastructure, the natural aggregates are being fall short off. To ensure long life and sustainability of concrete construction materials, it is the need of the hour to preserve the natural aggregates. One such attempt is to utilize the waste products from industry in the manufacture of concrete. The waste products are fly ash, silica fume, rice-husk, polypropylene, marble powder, foundry sand etc. The necessity of utilization of waste materials as a component of concrete composite can be in the form of either replacement of ordinary Portland cement by a waste having similar cementing properties and fine aggregate having similar composition and waste materials can also be added to concrete composites so as to improve the properties of concrete composite. This will help in management of preservation of natural aggregates, saving in energy for production of cement, utilization of waste which is a problem for thermal power plants as well as industries, saving in greenhouse gas emission, economical construction material, green concrete composite and many more factors.

Keywords

Concrete, Fly Ash, Polypropylene Fibers, Workability, Compressive Strength, Flexure Strength, Split Tensile Strength, Water Absorption, Freeze-Thaw Resistance and Abrasion Resistance.

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Monica Agarwal ¹, Mool Chand Choudhary ¹, Vanita Rai Aggarwal ¹

Affiliations
1 Civil Engineering Department, Maharishi Markandeshwar University, Mullana, Ambala, Haryana, IN

Abstract

It had been a common practice in the ancient communities to reuse valuable left over materials, e.g. metals and building materials from deconstruction of previous thing or property. But the “use-and-throw-away” philosophy had led to depletion of natural resources and pollution of world. This paper presents the use of Recycled Coarse Aggregate and Recron 3S in Concrete to be used for general building construction- residential, commercial and industrial. Replacing Natural Coarse Aggregate (NCA) with Recycled Construction & Demolition (C&D) Waste Aggregate and adding Recron-3S synthetic fibre. Recycled Coarse Aggregate (RCA) replaces NCA by 40% and adding Recron 3S in 0.125% , 0.25% in concrete. The use of RCA from the C & D waste proposes to be a win-win-win situation, as instead of creating big landfill, saving of natural physical topography and reducing the production of Carbon dioxide by half. The aim of this paper is to discuss the use of Recycled Aggregate Concrete (RAC) with Recron 3S fibre in construction industry.

Keywords

Recycled Aggregate Concrete, Recron-3S, Properties, Workability, Compressive Strength, Flexural Strength, Split Tensile Strength, Durability Properties.

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