Performance of slag-fly ash based alkali activated concrete for paver applications utilizing powdered waste glass as a b
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International Journal of Pavement Research and Technology Journal homepage: www.springer.com/42947
Performance of slag-fly ash based alkali activated concrete for paver applications utilizing powdered waste glass as a binding ingredient Shriram Marathe*, I. R. Mithanthaya, B. M. Mithun, Sahithya Shetty, Akarsh P. K. Department of Civil Engineering, NMAM Institute of Technology, Nitte, Karkala Taluk, Udupi District, Karnataka, India Received 8 July 2019; received in revised form 24 July 2020; accepted 27 July 2020
Abstract
In the present scenario, there is a huge requirement of quality concrete for paver applications. The production of green and sustainable concrete has become a must to substitute the ordinary Portland cement (OPC) concrete. It is an eminent fact that the manufacture of OPC re quires the burning of its raw materials which lead to a huge amount of carbon dioxide liberation; also, it requires a large amount of energy dissipation. The concrete produced using alkali activation has become renowned methods to replace the conventional OPC, which gives an answer to find a way to generate env ironmentally friendly concrete. In the current study, pavement quality concrete (PQC) is produced using alkali activation. The main focus of the wo rk is to study the effect of powdered glass as a binding ingredient in Alkali-Activated Concrete (AAC) mixes. The alkaline activator used to activate the binder was sodium hydroxide solution dispersed in liquid sodium silicate. The utilization of industrial dissipate materials such as Ground Granulated Blast Furnace Slag (GGBS), fly ash, and waste glass powder was used as the binding ingredients, and stone crusher dust was used as fine aggregates. The experimental investigation showed that a PQC can be easily produced using alkali activation of industrial wastes satisfying its strength requirements. It was behavi ng better under fatigue, showing its relevance in usage as a pavement construction material. Keywords: Pavement Quality Concrete, GGBS, Glass powder, Alkali activation, strength, Fatigue Performance
1. Introduction The rapid increase in the industrialization and urbanization across the globe has led to the simultaneous increase in the standard of living of the people and an increase in the consumption rate of the people. This high consumption rate has led to a rapid decrease in the natural resources, which is a cause of concern in terms of sustainability of resources, also, the increase in the consumption rate has led to a considerate increase in the waste generated throughout the world. The society that is obsessed with consumption produces a massive amount of waste, this huge amount of waste generated creates a massive pressure to not only manage waste but, to cope with it in a more sustainable manner [1]. As per the general definition of waste, it is any material, element or a by-product which is eliminated or discarded as no longer useful or required after completion of a process. The major byproducts are considered to be objectionable and unavoidable in the
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