Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete

Suárez González, Jesús; Lopez Boadella, Iñigo; López Gayarre, Fernando; López-Colina Pérez, Carlos; Serrano López, Miguel; Stochino, Flavio

doi:10.3390/ma13112457

Open AccessArticle

Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete

by

Jesús Suárez González

^1,*,

Iñigo Lopez Boadella

¹

,

Fernando López Gayarre

¹,

Carlos López-Colina Pérez

¹

,

Miguel Serrano López

¹

and

Flavio Stochino

²

¹

Poliytechnic School of Engineering, Campus de Viesques, University of Oviedo, 33203 Gijón, Spain

²

Department of Civil, Environmental and Architectural Engineering, University of Cagliari, 09100 Cagliari, Italy

^*

Author to whom correspondence should be addressed.

Materials 2020, 13(11), 2457; https://doi.org/10.3390/ma13112457

Submission received: 1 May 2020 / Revised: 20 May 2020 / Accepted: 26 May 2020 / Published: 28 May 2020

(This article belongs to the Special Issue Properties and Novel Applications of Recycled Aggregates)

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Abstract

This research work analyses the influence of the use of by-products from a fluorite mine to replace the fine fraction of natural aggregates, on the properties of Ultra-High-Performance Fibre-Reinforced Concrete (UHPFRC). Replacing natural aggregates for different kinds of wastes is becoming common in concrete manufacturing and there are a number of studies into the use of waste from the construction sector in UHPFRC. However, there is very little work concerning the use of waste from the mining industry. Furthermore, most of the existing studies focus on granite wastes. So, using mining sand waste is an innovative alternative to replace natural aggregates in the manufacture of UHPFRC. The substitutions in this study are of 50%, 70% and 100% by volume of 0–0.5 mm natural silica sand. The results obtained show that the variations in the properties of consistency, compressive strength, modulus of elasticity and tensile strength, among others, are acceptable for substitutions of up to 70%. Therefore, fluorite mining sand waste is proved to be a viable alternative in the manufacturing of UHPFRC.

Keywords: mining waste; ultra-high performance fibres reinforced concrete; compressive strength; flexural strength

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MDPI and ACS Style

Suárez González, J.; Lopez Boadella, I.; López Gayarre, F.; López-Colina Pérez, C.; Serrano López, M.; Stochino, F. Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete. Materials 2020, 13, 2457. https://doi.org/10.3390/ma13112457

AMA Style

Suárez González J, Lopez Boadella I, López Gayarre F, López-Colina Pérez C, Serrano López M, Stochino F. Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete. Materials. 2020; 13(11):2457. https://doi.org/10.3390/ma13112457

Chicago/Turabian Style

Suárez González, Jesús, Iñigo Lopez Boadella, Fernando López Gayarre, Carlos López-Colina Pérez, Miguel Serrano López, and Flavio Stochino. 2020. "Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete" Materials 13, no. 11: 2457. https://doi.org/10.3390/ma13112457

APA Style

Suárez González, J., Lopez Boadella, I., López Gayarre, F., López-Colina Pérez, C., Serrano López, M., & Stochino, F. (2020). Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete. Materials, 13(11), 2457. https://doi.org/10.3390/ma13112457

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Use of Mining Waste to Produce Ultra-High-Performance Fibre-Reinforced Concrete

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