Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Version 1 : Received: 28 January 2021 / Approved: 31 January 2021 / Online: 31 January 2021 (11:08:23 CET)

A peer-reviewed article of this Preprint also exists.

Gayarre, F.L.; Suárez González, J.; Lopez Boadella, I.; López-Colina Pérez, C.; Serrano López, M. Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibers. Appl. Sci. 2021, 11, 1764. Gayarre, F.L.; Suárez González, J.; Lopez Boadella, I.; López-Colina Pérez, C.; Serrano López, M. Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibers. Appl. Sci. 2021, 11, 1764.

Journal reference: Appl. Sci. 2021, 11, 1764
DOI: 10.3390/app11041764

Abstract

The purpose of this study is to analyse the feasibility of using waste from granite gang saws (GCW-GS) to manufacture ultra-high performance, steel-fibre reinforced concrete (UHPFRC). These machines cut granite blocks by abrasion using a steel blade and slurry containing fine steel grit. The waste generated by gang saws (GCW-GS) contains up to 15% Fe2O3 and up to 5% CaO. This is the main difference from the waste produced by diamond saws (GCW-D). Consequently, the second objective of this study is to compare the results of the waste obtained with gang saws with that from diamond saws, in order to determine the influence of iron and calcium oxides. The waste from cutting granite with gang saws was used in different percentages to replace micronized quartz powder of natural origin in the manufacture of UHPRFC. All the test specimens were analysed to determine their compressive strength, elasticity modulus, flexural strength and indirect tensile strength. The final conclusion is that wastes from both gang saws and diamond saws can be used to manufacture UHPFRC with an improvement in the mechanical properties up to a 35% replacement. The results for GCW-GS are better, mainly due to the pozzolanic effect of the iron dioxide. For higher percentage replacements the mechanical properties are close to the control concrete with small decreases.

Keywords

ultra-high performance concrete; waste; granite gang saws; steel fibres, compressive strength, flexural strength, elasticity modulus

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.