scholarly journals Use of industrial wastes as filler in open-graded friction courses

2017 ◽  
Vol 12 (2) ◽  
pp. 106-116 ◽  
Author(s):  
Rajan Choudhary ◽  
Dibyatonu Chattopadhyay ◽  
Abhinay Kumar ◽  
Ashok Julaganti
Keyword(s):  
Regression Analysis ◽  
Fly Ash ◽  
Course Design ◽  
Industrial Wastes ◽  
Mix Design ◽  
Design Parameters ◽  
Void Content ◽  
Filler Materials ◽  
Open Graded Friction Course ◽  
Marble Dust

For a fast developing economy like India, expansion, rehabilitation, and maintenance of transportation infrastructure is crucial and require huge quantities of high quality natural aggregates. Meanwhile, vast amounts of industrial wastes accumulating in the country pose problems related to safe and sustainable disposal. The present study investigated possible utilisation of marble dust, a waste from stone industry, and fly ash, a waste from thermal power stations, as filler materials in open-graded friction course mixes. Open-graded friction course mixes incorporating fly ash, marble dust, and two sources of stone dust as filler fractions were designed and evaluated for mix design properties including draindown, abrasion loss, air void content, and permeability. Morphology of each filler was characterised through scanning electron microscopy. Physicochemical properties of fillers were examined through Rigden voids, German filler test, methylene blue, and hydrometer analysis. Analysis of variance using Fisher multiple comparison procedure was performed to evaluate the effect of filler type on design properties of open-graded friction course mixes. Regression analysis using forward selection technique was performed to identify significant filler characteristics influencing open-graded friction course properties. Results showed that filler type affected open-graded friction course design parameters significantly. Open-graded friction course mixes with marble dust showed promising performance with lowest draindown, and highest durability, air voids, and permeability. Regression analysis identified Rigden void content of filler materials as a major filler characteristic affecting the mix design parameters of open-graded friction course mixes.

Effect of Ceramic Fillers on Mechanical Properties of Bamboo Fiber Reinforced Epoxy Composites: A Comparative Study

2010 ◽  
Vol 123-125 ◽  
pp. 1031-1034 ◽  
Author(s):  
Sandhyarani Biswas ◽  
Alok Satapathy ◽  
Amar Patnaik
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Red Mud ◽  
Synergistic Effects ◽  
Bamboo Fiber ◽  
Industrial Wastes ◽  
Epoxy Composites ◽  
Void Content ◽  
Filler Materials ◽  
Fiber Reinforced

In order to obtain the favoured material properties for a particular application, it is important to know how the material performance changes with the filler content under given loading conditions. In this study, a series of bamboo fiber reinforced epoxy composites are fabricated using conventional filler (aluminium oxide (Al2O3) and silicon carbide (SiC) and industrial wastes (red mud and copper slag) particles as filler materials. By incorporating the chosen particulate fillers into the bamboo-fiber reinforced epoxy, synergistic effects, as expected are achieved in the form of modified mechanical properties. Inclusion of fiber in neat epoxy improved the load bearing capacity (tensile strength) and the ability to withstand bending (flexural strength) of the composites. But with the incorporation of particulate fillers, the tensile strengths of the composites are found to be decreasing in most of the cases. Among the particulate filled bamboo-epoxy composites, least value of void content are recorded for composites with silicon carbide filling and for the composites with glass fiber reinforcement minimum void fraction is noted for red mud filling. The effects of these four different ceramics on the mechanical properties of bamboo- epoxy composites are investigated and the conclusions drawn from the above investigation are discussed.

A critical review on tribological properties, thermal behavior, and different applications of industrial waste reinforcement for composites

2020 ◽  
pp. 146442072097243 ◽  
Author(s):  
Swati Gangwar ◽  
Vimal Kumar Pathak
Keyword(s):  
Fly Ash ◽  
Red Mud ◽  
Industrial Waste ◽  
Hybrid Composites ◽  
Industrial Wastes ◽  
Reinforced Composites ◽  
Manufacturing Costs ◽  
Comprehensive Review ◽  
Marble Dust ◽  
Future Potential

Industrial wastes such as marble dust, fly ash, and red mud have progressed as an environmental hazard that needs to be disposed or utilized for minimizing the ecological pollution problems and manufacturing costs. Over the years, there is an increasing interest among researchers in utilizing these industrial wastes as reinforcement for developing economic and lightweight monolithic or hybrid composites. In the same context, this paper presents a comprehensive review on the aspects of tribology and thermal performance of industrial waste such as marble dust, fly ash, and red mud as reinforcement for different monolithic and hybrid composites. The review also describes different applications for industrial waste material reinforced composites. Finally, the paper concludes with authors’ perspective of the review, conclusion summary, and future potential of industrial waste filled composites in different industries for obtaining a sustainable and cleaner environment.

scholarly journals A Research on Sustainable Micro-Concrete

2019 ◽  
Vol 8 (2S3) ◽  
pp. 1137-1139
Keyword(s):  
Fly Ash ◽  
Environmental Pollution ◽  
New Age ◽  
Industrial Wastes ◽  
Construction Sector ◽  
Conventional Concrete ◽  
Foundry Sand ◽  
Marble Dust ◽  
Sustainable Materials

Construction sector which uses cement in its activities causing a release of CO2 into the atmosphere. Currently, all the sectors are viewing seriously in reducing environmental pollution and hazards. In this scenario, the research in industrial wastes such as fly ash, slag, used foundry sand, marble dust, etc., lead to use in construction industries as sustainable materials (SM), thereby contributing to reduction in environmental pollution. This paper reviewed the usage of these SM in the production of micro-concrete is very less when compared with new age conventional concrete, some of the effects of utilization of these SM in micro-concrete are presented. The quantum of research done in micro-concrete is very less, further studies to be done

Comparative Study on the Wear Properties of Fly Ash and Silica Fume Filled Nylon Composites 

2014 ◽  
Vol 592-594 ◽  
pp. 1277-1284 ◽  
Author(s):  
Velur Loganathan Raja ◽  
Arumugam Kumaravel
Keyword(s):  
Fly Ash ◽  
Silica Fume ◽  
Low Cost ◽  
Weight Fraction ◽  
Industrial Wastes ◽  
Filler Materials ◽  
Wear Properties ◽  
Nylon 66 ◽  
Suitable Alternative ◽  
Pin On Disc

Nylon 66 is an engineering thermoplastic which has been found to be a suitable alternative material for metal parts in low and medium load bearing applications. Particulate filled polymer composites are preferred in this kind of tribological environment, because of their enhanced wear resistance properties. Fly ash and silica fume are industrial wastes which are now looked as potential fillers to enhance the material properties at low cost. Nylon 66 was reinforced with these filler materials at 15% weight fraction using a twin-screw extruder. The specimens were prepared using an injection molding machine of 60 ton capacity. The tests were carried out under dry sliding conditions in a pin-on-disc type friction and wear monitoring test rig. The tests were conducted at various sliding velocities of 2 m/s, 3 m/s and 4 m/s, at three different normal loads of 20 N, 40 N, 60 N and at a constant sliding distance of 5000 m. SEM observations were made to study the wear mechanisms in the composites. Both types of composites showed enhanced wear properties compared to neat Nylon but fly ash filled Nylon composites were superior to silica fumed filled Nylon composites.

scholarly journals Mortars with Recycled Aggregates from Building-Related Processes: A ‘Four-Step’ Methodological Proposal for a Review

2021 ◽  
Vol 13 (5) ◽  
pp. 2756
Author(s):  
Federica Vitale ◽  
Maurizio Nicolella
Keyword(s):  
Building Materials ◽  
Thermal Analyses ◽  
Construction Materials ◽  
Physical And Mechanical Properties ◽  
Research Trends ◽  
Mix Design ◽  
Recycled Aggregates ◽  
Design Parameters ◽  
Natural Aggregates ◽  
By Products

Because the production of aggregates for mortar and concrete is no longer sustainable, many attempts have been made to replace natural aggregates (NA) with recycled aggregates (RA) sourced from factories, recycling centers, and human activities such as construction and demolition works (C&D). This article reviews papers concerning mortars with fine RA from C&D debris, and from the by-products of the manufacturing and recycling processes of building materials. A four-step methodology based on searching, screening, clustering, and summarizing was proposed. The clustering variables were the type of aggregate, mix design parameters, tested properties, patents, and availability on the market. The number and the type of the clustering variables of each paper were analysed and compared. The results showed that the mortars were mainly characterized through their physical and mechanical properties, whereas few durability and thermal analyses were carried out. Moreover, few fine RA were sourced from the production waste of construction materials. Finally, there were no patents or products available on the market. The outcomes presented in this paper underlined the research trends that are useful to improve the knowledge on the suitability of fine RA from building-related processes in mortars.

scholarly journals Study of the Physical Behavior of a New Composite Material Based on Fly Ash from the Combustion of Coal in an Ultra-Supercritical Thermal Power Plant

2021 ◽  
Vol 5 (6) ◽  
pp. 151
Author(s):  
Mustapha El Kanzaoui ◽  
Chouaib Ennawaoui ◽  
Saleh Eladaoui ◽  
Abdelowahed Hajjaji ◽  
Abdellah Guenbour ◽  
...  
Keyword(s):  
Composite Material ◽  
Fly Ash ◽  
Power Plant ◽  
High Performance ◽  
Thermal Power ◽  
Recovery Process ◽  
Industrial Wastes ◽  
Raw Material ◽  
Polymerization Reaction ◽  
High Performance Composite

Given the amount of industrial waste produced and collected in the world today, a recycling and recovery process is needed. The study carried out on this subject focuses on the valorization of one of these industrial wastes, namely the fly ash produced by an ultra-supercritical coal power plant. This paper describes the use and recovery of fly ash as a high percentage reinforcement for the development of a new high-performance composite material for use in various fields. The raw material, fly ash, comes from the staged combustion of coal, which occurs in the furnace of an ultra-supercritical boiler of a coal-fired power plant. Mechanical compression, thermal conductivity, and erosion tests are used to study the mechanical, thermal, and erosion behavior of this new composite material. The mineralogical and textural analyses of samples were characterized using Scanning Electron Microscopy (SEM). SEM confirmed the formation of a new composite by a polymerization reaction. The results obtained are very remarkable, with a high Young’s modulus and a criterion of insulation, which approves the presence of a potential to be exploited in the different fields of materials. In conclusion, the composite material presented in this study has great potential for building material and could represent interesting candidates for the smart city.

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