KnE Materials Science

ISSN: 2519-1438

The latest conference proceedings on physical materials, energy materials, electrical materials.

Use of the Waste Foundry Sand in the Composition of Hot Sandy Dense Asphalt Concrete

Published date: Dec 31 2020

Journal Title: KnE Materials Science

Issue title: IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” Volume 2020

Pages: 432–437

DOI: 10.18502/kms.v6i1.8121

Authors:

Kirill Yuryevich Tyuryukhanov - Turuchanov.k.u@list.ru

Konstantin Georgievich Pugin

Abstract:

There is an increase in motorization worldwide, which in turn requires the construction of high-quality roads and highways. In both new construction and reconstruction of the pavement, large volumes of natural mineral materials are used, placing a large technogenic load on environmental objects during their extraction. In a number of regions of the Russian Federation, there are not sufficient volumes of conditioned raw materials for the production of high-quality composite building materials, such as asphalt concrete and cement concrete mixtures. The use of industrial waste in the composition of building materials addresses this issue while both solving environmental issues and reducing the cost of road construction. This article shows that developed countries successfully use the resource potential of waste in the production of building materials. This article proposes the use of waste foundry sand as the mineral raw material in the production of asphalt concrete. The article presents research on the following: geometric shape, elemental composition of the surface of the particles of the waste foundry sand; bitumen capacity; and the adhesion of bitumen. Based on the obtained data, a technology was developed for producing hot sandy asphalt concrete in which the waste foundry sand is used as a fine mineral aggregate. Physico-mechanical properties of the obtained samples of asphalt concrete satisfy the requirements established in GOST for asphalt concrete.

Keywords: waste foundry sand, asphalt concrete, industrial material, elemental composition, bitumen

References:

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