Sustainable efficiency of slag with waste fibres and crushed white glass as aggregates in conventional concrete VM. Sounthararajan a,⇑ , A. Rajarajeswari b , A. Praveen Kumar c a Department of Civil Engineering, CMR Technical Campus, Kandlakoya, Medchal Road, Hyderabad 501401, Telangana, India b Department of Civil Engineering, TKR College of Engineering and Technology, Meerpet, Hyderabad 500097, Telangana, India c Department of Mechanical Engineering, CMR Technical Campus, Kandlakoya, Medchal Road, Hyderabad 501401, Telangana, India article info Article history: Received 8 February 2020 Received in revised form 24 February 2020 Accepted 1 March 2020 Available online 30 March 2020 Keywords: Crushed white glass aggregate Dynamic modulus Slag Strength properties UPV Waste steel-fibres abstract The main objective of this research work has focused on producing the sustainable effects of construction industries. Test results indicated that the reaction of crushed white glass (CWG) is partially suitable for alternate fill materials instead of natural river sand. However, there is no reactive reaction for alkali-silica in concrete. In extension, adding slag with fibre were significantly improved the strength attainment in different mixes. This study presents the M25 grade concrete used for different waste materials were sub- stituted and calculated the strength attainment such as crushing, flexural and dynamic modulus of elas- ticity by UPV values for different mixes. It is exhibited higher strength attainment up to 39.45 MPa in 20% of slag, 30% of CWG aggregate with 1.5% of waste fibres at 28-days moist curing. Also, observed there is an improvement in bending stress 4.75 MPa at 28-days. Ó 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the First International conference on Advanced Lightweight Materials and Structures. 1. Introduction In civil engineering, the several applications in construction work mostly used for common materials ingredients such as OPC, PPC, Slag cement, river sand (fine aggregate), crushed coarse aggregate and water. Nowadays, the material cost has increased drastically due to scarcity. However, to minimize these issues while sustainable alternate materials introduced in modern con- struction industries. Structural-concrete prevents corrosion deterioration with car- bonation due to chloride content when the usage of supplementary cementitious in concrete. However, drastically reduce the chloride ions ingress into the concrete. The usage of fine RBA showed higher water content during the mixing of concrete mixes [1]. However, the other author had reported the loss of resistance around 30% when 100% RBA replaced in control concrete [2]. Nowadays, limited usage of recy- cled waste glass used in construction industries [3] with less prac- tice. However, used for other purposes for back-fill in flooring works, masonry and titles works etc. Mostly, this kind of waste material is considering for residue with non-biodegradable nature and used for landfill purpose only. Also, the recycling process around 27% and does not provide Eco- friendly in aggressive environmental conditions [4]. Few research works [5–8] had developed for biological composites for different application of waste glass for partially replacing in fine aggregates instead of river sand and other filling works. FRC having the short discrete fibrous material used in a wide range for PCC either randomly or uniformly distributed in fresh concrete and this kind of fibres has significantly controlled the cracks. However, the bending stresses, strain hardening and tough- ness index was greatly improved owing to load-carrying intensity in FRC. Also, addresses the structural integrity in the composite matrix than compared to PCC [9–10]. NDT (Nondestructive Test) is the quality control techniques in construction industries to be monitored the velocity, frequency with a known distance. Also, this is useful techniques to predict the age of the building and also evaluation of the spoiled/damaged structures to the intensity of pathological manifestations owing to lack of improper maintains. However, hardened characteristics as considerably improved in concrete when the usage of waste by-product materials [11]. https://doi.org/10.1016/j.matpr.2020.03.004 2214-7853/Ó 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the First International conference on Advanced Lightweight Materials and Structures. ⇑ Corresponding author. E-mail address: sounthararajan.civil@cmrtc.ac.in (VM. Sounthararajan). Materials Today: Proceedings 27 (2020) 1493–1497 Contents lists available at ScienceDirect Materials Today: Proceedings journal homepage: www.elsevier.com/locate/matpr