Blast furnace dust and phosphorous slag, new materials for use in road engineering

This article proposes an alternative to the use of phosphorus slag and blast furnace dust, by-products of the steel industry, due to the negative environmental impact caused by its accumulation. Taking into account the above, the pertinence of the use of these by-products in asphalt mixtures for the...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-12, Vol.935 (1), p.12003
Main Author: Díaz, R Ochoa
Format: Article
Language:English
Subjects:
Asphalt mixes
Blast furnace chemistry
Blast furnace slags
By products
Byproducts
Dust
Environmental impact
Iron and steel industry
Parameters
Physics
Road construction
Road engineering
Slag
Toxicity
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Summary:This article proposes an alternative to the use of phosphorus slag and blast furnace dust, by-products of the steel industry, due to the negative environmental impact caused by its accumulation. Taking into account the above, the pertinence of the use of these by-products in asphalt mixtures for the construction of roads is studied. In this way, the origin and its properties are presented, as well as their physical and chemical characteristics. Once the tests have been carried out, it is determined that these by-products have adequate characteristics for their use since they do not present toxicity problems. Following this, the design of the mixtures is carried out to determine the mechanical and dynamic properties and thus determine the proportion to be replaced with the conventional materials. Taking into account the results it is concluded that its use is feasible since the mixture with these by-products presents acceptable resilient modulus parameters and improvement in some verification parameters.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/935/1/012003