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Appl. Sci. 2018, 8(6), 929;

Effect of Metallic Waste Addition on the Physical and Mechanical Properties of Cement-Based Mortars

LabMAT, Department of Civil and Environmental Engineering, University of Bío-Bío, 4051381Concepción, Chile
Department of Civil Engineering, University Andres Bello, 4300866 Concepción, Chile
School of Engineering and Technology, University of Hertfordshire, Hatfield AL10 9AB, UK
Author to whom correspondence should be addressed.
Received: 17 April 2018 / Revised: 2 May 2018 / Accepted: 8 May 2018 / Published: 5 June 2018
(This article belongs to the Section Materials)
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This paper investigates the influence of the type and amount of recycled metallic waste on the physical and mechanical properties of cement-based mortars. The physical and mechanical properties of cement mortars, containing four different amounts of metallic waste (ranged 4 to 16% by cement weight), were evaluated by measuring the bulk density, total porosity, flexural and compressive resistance, and dynamic elastic modulus by ultrasonic tests. All the properties were measured on test specimens under two curing ages: 7 and 28 days. Additionally, the morphological properties and elemental composition of the cement and metallic waste were evaluated by using Scanning Electron Microscopy (SEM), energy dispersive X-ray spectroscopy (EDXS), and X-ray fluorescence (XRF). Main results showed that the addition of metallic waste reduced the bulk density and increased the porosity of the cement-based mortars. Furthermore, it was observed that flexural and compressive strength proportionally increased with the metallic waste addition. Likewise, it was proven that elastic modulus, obtained by compressive and ultrasonic tests, increases with the metallic waste amount. Finally, based on a probability analysis, it was confirmed that the addition of metallic waste did not present a significant effect on the mechanical performance of the cement-based mortars. View Full-Text
Keywords: cement mortar; metallic waste; waste influence; physico-mechanical properties cement mortar; metallic waste; waste influence; physico-mechanical properties

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Norambuena-Contreras, J.; Cartes, A.; Gonzalez-Torre, I.; Chavez, M.; Kanellopoulos, A. Effect of Metallic Waste Addition on the Physical and Mechanical Properties of Cement-Based Mortars. Appl. Sci. 2018, 8, 929.

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