The Structure and Properties of Asphalt Concrete on the Basis of Waste Foundry Sand

2021 ◽  
Vol 1037 ◽  
pp. 721-728
Author(s):  
Konstantin G. Pugin
Keyword(s):  
Asphalt Concrete ◽  
Adhesion Force ◽  
Physical And Mechanical Properties ◽  
Adhesion Forces ◽  
Secondary Products ◽  
Molding Sand ◽  
Foundry Sand ◽  
Mineral Particles ◽  
Waste Foundry Sand ◽  
Modified Surface

The features of the use of waste foundry sand to obtain secondary products are presented. The properties of the surface of mineral particles of waste molding sand are described. It is shown that on the surface of the particles there is a porous layer capable of increasing the adhesion forces of mineral particles with bitumen in the production of asphalt concrete. It has been established that the modified surface of the waste foundry sand contains up to 40% carbon, which provides an increase in the adhesion force between the mineral particles of the waste foundry sand and bitumen. It has been experimentally proven that the use of waste foundry sand in the composition of asphalt concrete can improve its physical and mechanical properties.

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

2020 ◽  
Author(s):  
Kirill Yuryevich Tyuryukhanov ◽  
Konstantin Georgievich Pugin
Keyword(s):  
Elemental Composition ◽  
Asphalt Concrete ◽  
Building Materials ◽  
Raw Materials ◽  
Road Construction ◽  
Developed Countries ◽  
Raw Material ◽  
High Quality ◽  
Foundry Sand ◽  
Waste Foundry Sand

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

An investigation of waste foundry sand in asphalt concrete mixtures

2006 ◽  
Vol 24 (3) ◽  
pp. 269-274 ◽  
Author(s):  
Recep Bakis ◽  
Hakan Koyuncu ◽  
Ayhan Demirbas
Keyword(s):  
Asphalt Concrete ◽  
Foundry Sand ◽  
Concrete Mixtures ◽  
Waste Foundry Sand

scholarly journals Use of Waste Foundry Sand (WFS) as Filler in Hot-Mixed Asphalt Concrete

2020 ◽  
Author(s):  
Nilton de Souza Campelo ◽  
Karine Jussara Sá da Costa ◽  
Raimundo Kennedy Vieira ◽  
Adalena Kennedy Vieira
Keyword(s):  
Asphalt Concrete ◽  
Foundry Sand ◽  
Waste Foundry Sand ◽  
Hot Mixed Asphalt

A multistakeholder approach and techno-economic analysis of a mechanical reclamation process for waste foundry sand in the Indian context

2021 ◽  
Vol 167 ◽  
pp. 105437
Author(s):  
Mohd Moiz Khan ◽  
S.M. Mahajani ◽  
G.N. Jadhav ◽  
Rohit Vishwakarma ◽  
Vithoba Malgaonkar ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Foundry Sand ◽  
Indian Context ◽  
Waste Foundry Sand ◽  
Reclamation Process

Geotechnical behavior of a compacted waste foundry sand

2021 ◽  
Vol 277 ◽  
pp. 122267
Author(s):  
Marcelo Heidemann ◽  
Helena Paula Nierwinski ◽  
Daniel Hastenpflug ◽  
Breno Salgado Barra ◽  
Yader Guerrero Perez
Keyword(s):  
Foundry Sand ◽  
Waste Foundry Sand
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