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Environmental Impact Study of Unmodified Sulfur Mortar

Title: Environmental Impact Study of Unmodified Sulfur Mortar
Author(s): Gracia
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 935 - 944
Total Pages: 10
Nb references: 10
Language: English

Abstract: Sulfur concrete is a thermoplastic material, composed by sulfur and aggregates, which are
mixed at a temperature over the fusion point of sulfur (119ºC). Upon cooling sulfur solidifies,
binding the aggregate in a matrix and forming a rigid and hard material.
Most of the properties of sulfur concrete, especially the physical, mechanical and chemical
resistance ones, have been well studied in the past, having been proved that it is a high
performance material. However, to normalise a construction material, other properties as
durability, reciclability and environmental impact, must be controlled.This is specially important as sulfur is a waste obtained as a by-product of severalindustrial processes, mainly petroleum and gas refining ones. In addition, sulfur concrete can
be used for encapsulation of other wastes, like residues from metal refining industries or
organic wastes.In this work a simple formulation of sulfur mortar has been developed. After proving the
viability of manufacture and appropiate performance, its environmental impact has been
evaluated. Leaching of sulfates under standard tests (DIN and NEN) has been measured,
while reciclability of sulfur mortar has been verified trough mechanical tests. Both studies
have shown very positive results, encouraging the use of this material for several applications.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.103

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