Investigation of the properties of cast asphalt concrete mixture with the addition of fiber from the fly ash of thermal power plants

Abstract

The introduction of new road-building materials with advanced physical and mechanical properties is the trend in contemporary civil engineering, which aims to increase the quality of road surfaces. The use of cast asphalt concrete in the upper layers of road surfaces as a replacement for layers made of traditional fine-grained asphalt concrete will not only increase the pace of construction and repair, but also the durability and quality of the road pavement. However, this method requires operational and economic optimization. Using fiber from the fly ash of thermal power plants is one of the solutions for the design of cast asphalt concrete compositions. The aim of the work is to design the optimal composition of hot cast asphalt concrete and cold cast emulsion–mineral mixtures with the use of fiber from the fly ash of thermal power plants for the construction of thin-layer coatings of highways of all categories and values; to study their properties; and to determine the feasibility of their use as reinforcing and stabilizing additives. The method of GOST 11506, namely, “Method for determining the softening temperature of the ring and ball”, with the apparatus “Lintel KiSh-20m-4” was used during the experiments. The use of standard laboratory tests made it possible to analyze the quality indicators of the materials under study and design the optimal compositions of hot cast asphalt concrete, taking into account the delamination of the mixture and the criterion of decomposition, in addition to exploring the properties of the obtained material.

Investigation to enhanced Physical and Mechanical Properties of Road Pavement in Asphalt Incorporating Low-Density Waste Plastic Bags

“…These effects were observed by (Boukhari et al, 2015) which recommended the addition content between 2% to 8%. Furthermore, the optimal amount of fiber from fly ash in cast hot asphalt concrete is 4.0% of the mass (Bieliatynskyi et al, 2022) and 10wt% with waste plastic bags (Kowanou, 2014). The incorporation of glass particles at 10wt% in the mixtures increase the performance of bituminous coating of type ESG10 and GB20 (Bachand, 2018).…”

“…As a result, there is a huge proliferation of this plastic waste, leading to environmental problems given its nonbiodegradable nature. The introduction of new road-building materials with advanced physical and mechanical properties is the trend in contemporary civil engineering, which aims to increase the quality of road surfaces (Bieliatynskyi et al, 2022) and safety (St-Jacques et al, 2009). According to previous research work, the mixtures modified with recycled-plastic additives (Russo et al, 2022;Pugin et al, 2022), the addition of fiber from the fly ash of thermal power plants (Bieliatynskyi et al, 2022), the glass particle, showed higher stiffness and tenacity and as expected though, with specified physical, mechanical and operational properties in line with the literature.…”

“…The introduction of new road-building materials with advanced physical and mechanical properties is the trend in contemporary civil engineering, which aims to increase the quality of road surfaces (Bieliatynskyi et al, 2022) and safety (St-Jacques et al, 2009). According to previous research work, the mixtures modified with recycled-plastic additives (Russo et al, 2022;Pugin et al, 2022), the addition of fiber from the fly ash of thermal power plants (Bieliatynskyi et al, 2022), the glass particle, showed higher stiffness and tenacity and as expected though, with specified physical, mechanical and operational properties in line with the literature. And asphalt with an added polymer material which is elastomeric can increase the durability of road pavements and the stability of the asphalt concrete mixture (Yanuar et al, 2021;Hadidane et al, 2015).…”

Study on Thixotropy of Mastic Asphalt Binder and Asphalt Mastic

“…In the United Kingdom, based on the material's characteristics, gussasphalt concrete was improved and defined as mastic asphalt concrete. The mastic asphalt concrete production process is complex, requiring adding asphalt and aggregate in batches, then mixing for up to 6 h, and finally paving and forming with a special paver [1,2]. In the long-term mixing process, the viscosity of mastic asphalt concrete gradually decreases with the increase in mixing time.…”