High quality of mortar with marble waste aggregate

Maria Teresa Gomes Barbosa,White José Dos Santos,Claudia Valéria Gávio Coura

doi:10.1590/s1678-86212018000200260

Abstract

Abstract The use of industrial waste has raised great interest regarding its potential of contributing both to the reduction of costs and to sustainable development. In this context, there has been an increasingly high number of studies addressing the use of alternative materials in the construction industry, especially when considering the difficulty in obtaining building materials near urban centers, which results in an increase in the final price due to transportation costs. This research has characterized and evaluated the use of crushed marble waste to replace natural sand in the production of mortar. Many admixtures of mortar were subject to research regarding their physical and mechanical properties. It has been concluded that mortars produced with sand made of crushed marble waste have improved mechanical properties when compared to traditional mortar.

Highlights

The Construction Industry first began to recognize the impact of its activities in the 1990s, due to its strong influence in society and in the economy
It is possible to observe that mortars made with waste – artificial sand (WA) present values that are 60% higher than those of mortars made with Natural aggregate (NA) for an early age (7 days)
It has been found that the compressive strength of mortar made with WA after 28 days is higher than 40 MPa for a mix proportion of 1:2 and a workability of 180 mm, which shows a higher strength of the mortars, which is favored by the aggregate properties such as particle size, surface texture, low absorption and good granulometric distribution, leading to improvements in the quality of the composite (CORINALDESI; MORICOMI; NAIK, 2011; CABREIRA; TRAVERSA; ORTEGA, 2011, PAN; WENG, 2012)

Summary

Introduction

The Construction Industry first began to recognize the impact of its activities in the 1990s, due to its strong influence in society and in the economy. This sector, being associated with issues of global sustainable development has, since strongly contributed to the establishment of environmental, economic and social sustainable principles (COX et al, 2015). Many authors corroborate that the insertion of waste as aggregate can lead to interesting characteristics in terms of strength of the concrete and/or mortar and contribute to sustainable development (KILBERT, 1995; ACCHAR; VIEIRA; HOTIZA, 2006; BINICI et al, 2008; TAM et al, 2009; CORINALDESI; MORICOMI; NAIK, 2011)

Methods

Results

Conclusion