Addition Of Quarry Dust Research Articles

Effect of Quarry Dust in Compaction Characteristics of Loose Sandy Soil from a Local Paddy Field

Loose Soils found in locations such as paddy fields deemed as unsuitable for construction works in general. Loose sandy soil is characterized by its granular and non-cohesive structure, which results in a high porosity and low bulk density. In construction, achieving adequate compaction is essential for enhancing the load-bearing capacity and stability of the soil. Therefore, if the geotechnical properties of these soils can be improved using a waste material such as quarry dust, which is a byproduct of the construction aggregate crushing process, it can offer a significant advantage. This study aims to assess the effect of quarry dust in maximum dry density and optimum moisture content of sandy soils from a local paddy field. Quarry dust is mixed with the soil in proportions of 10%, 20%, 30%, 40% & 50% by weight. Laboratory tests such as sieve analysis, specific gravity, Atterberg limit and proctor compaction tests were conducted on soil and soil – quarry dust. The results indicated that maximum dry density continues to increase with the addition of quarry dust while optimum water content reduces up to the addition of 30% quarry dust. The findings support that compaction characteristics can be improved using quarry dust which increases the suitability of the soil for construction purposes.

Mechanical properties of metakaolin-based geopolymers modified with different contents of quarry dust waste

This study aimed to evaluate the effect of incorporating quarry dust waste on the mechanical properties of metakaolin-based geopolymers. Sodium silicate and sodium hydroxide were used as alkaline activators. Five geopolymer mixtures were prepared with 0%, 10%, 20%, 30%, and 40% addition of quarry dust on the mass of solids in the mixture. The compressive strengths of the mixes ranged between 44.8 and 59.5 MPa after 28 days of ambient curing. The incorporation of quarry dust into the mass of solids in the mixture had a direct effect on the compressive strength. The results of the immersion absorption and void index tests corroborate with the compressive strength test results. The X-ray diffraction analysis showed that the quarry dust acted mainly as an inert filler material, improving the structure of the geopolymer matrix by densification. Therefore, the results showed that the incorporation of quarry dust is feasible and contributes to the trend of producing sustainable geopolymers with improved mechanical properties. In addition, new applications for the produced materials, such as mortars for fixing tiles and ceramics on floors, were made possible by the incorporation of quarry dust.

Surface modification of tungsten carbide cobalt by electrical discharge coating with quarry dust suspension

This study explores the feasibility of reusing waste quarry dust as a coating material for surface modification of tungsten carbide cobalt (WC-Co) using electrical discharge coating (EDC). The main objective is to investigate the effect of quarry dust suspension with different concentrations (0–40 g/l) on the characteristics of coated surface such as coating layer thickness, coating element composition and chemical compound, surface morphology, surface roughness and Vickers micro-hardness. Before the EDC process, characterisation of the raw quarry dust was conducted through scanning electron microscopy, X-ray fluorescence and particle size analyser. The results showed that the coating layer thickness was strongly affected by the quarry dust concentration. The formation of hard carbides (SiC, Mg2C3, Fe2C and CaC2) and oxide phases (SiO2, Al2O3, Fe2O3, CaO, CoO and ZnO) in the coated layer due to material migration was confirmed through X-ray diffraction analysis. Vickers micro-hardness of the coated surface was improved significantly with the addition of quarry dust. The best surface finish without micropores and microcracks was obtained using a quarry dust concentration of 10 g/l. These results demonstrated the capability of recycling quarry dust as an environmentally friendly coating material for surface modification.

Building blocks as infills: Current scenario and alternate materials

Currently, all nations have taken major initiatives in developing the infrastructures such as express highways, power projects, industrial structures, multi-storeyed residential flats etc., to meet the requirements of globalization. Concrete plays a key role and a large quantum of concrete is being utilized in every construction project. The use of such huge quantity of concrete will lead to several environmental impacts as well as economical issues. To reduce the environmental impact, the important thing is to diminish the use of the natural constituents of the concrete by effectively utilizing the abundantly available industrial by-products. And to reduce the economy, the major initiative is to minimize the quantity of cement and aggreagates in concrete by partial substitution with suitable by-products and using lightweight technology. Hence this study is oriented towards designing a new mix for the production of foamed concrete, thereby producing a sustainable and greener concrete. Application of green concrete is an effective way to reduce environmental pollution and improve durability of concrete under severe conditions. Foamed concrete using quarry dust replacing the manufactured sand partially and with fly ash and GGBFS replacing cement partially is dealt in detail in this paper. It is observed that there is considerable increase in compressive strength with addition of quarry dust, fly ash and GGBFS.

Modulus of rupture and surface morphology of the cement composites with the addition of quarry dust

Quarry dust is widely used as a substitute material in the cement composites because of its strength, and at the same time the re-use of this by-product waste from the rock mining operations has led to the environmental awareness amongst the researchers all over the world. In this research, an experimental study was undertaken to find out the effect of quarry dust for varying percentage replacement of river sand on modulus of rupture of the cement composites. Besides that, this paper also aims at the relationship of the modulus of rupture and surface morphology of the cement composites. Properties of the cement composites are investigated with partial sand replacement with the addition of quarry dust at 10 wt.%, 12.5 wt.%, 15.0 wt.% and 17.5 wt.%. Cement composites were cured, tested for modulus of rupture and characterized for surface morphology at curing period of 7 and 28 days to obtain the optimal value of quarry dust in the cement composites. The results of this research have indicated that 12.5 wt.% of quarry dust exhibits the optimal value of modulus of rupture and surface morphology in satisfactory condition.

Recycling of quarry dust for supplementary cementitious materials in low carbon cement

The main purpose of this study is to investigate the potential of using quarry dust as supplementary cementitious materials (SCMs) in alkali activated slag and Portland cement synthesis. The incorporation of quarry dust increased the early compressive strength of samples and led to a little detrimental impact on the compressive strength at 28 days curing. From the results of thermogravimetric (TG) and X-ray powder diffraction (XRD), there was nearly no change in the hydration phase assemble. Mercury intrusion porosimeter (MIP) indicated that the addition of quarry dust by 10–20% increased the porosity but decreased the average pore diameter after curing for 28 days. As a result, quarry dust shows great potential to be used as SCMs for low carbon cement preparation.

Exploratory study on durability of concrete structures by using smart piezoelectric sensors

Abstract The objective of the study is to identify the possibilities of utilizing the quarry dust in concrete to obtain the improved strength and durability properties of concrete during sulphate attack by using smart piezoelectric sensor. In the present study the addition of quarry dust as alternative for natural sand and partial replacement for cement with GGBS has been investigated for the durability properties of concrete. Mechanical properties of conventional concrete and partially replaced GGBS concrete were evaluated. The GGBS incorporated concrete strength was evaluated and the comparison between mechanical properties of GGBS incorporated concrete and ordinary Portland cement concrete was made. Sensors were used for monitoring corrosion of reinforcement during sulphate attack in both cases.

Compressive Strength by Incorporating Quarry Dust in Self-Compacting Concrete Grade M35

The study has conducted to determine the workability and compressive strength of the self –compacting concrete. The sand has replaced with quarry dust with the proportion of 10, 20, 30 and 40% and super plasticizer was added 0.9%. The experiments were carried out at the Infrastructure University Kuala Lumpur (IUKL) concrete laboratory. Slump flow, J- Ring tests were carried out to determine the workability of self-compacting concrete and compressive strength test was conducted on 7 days and 28th days of curing period. A finding of the study shows that workability and compressive strength has increased by addition of quarry dust. It is concluded that addition of quarry dust up to 30% improve the workability of the self-compacting concrete and further addition of quarry dust decrease the workability. Additionally, compressive strength of the quarry dust modified self-compacting concrete shows the trend of higher compressive strength up to 30% addition of quarry dust with sand replacement and further addition decrease the compressive strength.

Compactive effort influence on properties of quarry dust-black cotton soil mixtures

The influence of compactive efforts on properties of quarry dust-black cotton soil mixtures was studied using graphical method, two-way analyses of variance and multiple regression analysis. Addition of quarry dust to the black cotton soil resulted to increases in measured values of maximum dry unit weight (<i>MDUW</i>), optimum moisture content (<i>OMC</i>) as well as California bearing ratio (<i>CBR</i>). The observed increases were more pronounced at the highest compactive effort employed in the study. Measured values of free well strain, swell potential (<i>S_p</i>) and swelling pressure (<i>P_s</i>) decreased as quarry dust content increased; higher values of the parameters being obtained at higher compactive efforts for <i>S_p</i> and <i>P_s</i>. The differences in the measured values of <i>MDUW, OMC, CBR, S_p</i> and <i>P_s</i> resulting from differences in compactive efforts and quarry dust content are statistically significant at 5% level. Partial F-values derived from regression analyses results show that compactive efforts and quarry dust contents significantly influence the measured values of <i>MDUW, OMC CBR, S_p</i> and <i>P_s</i>. It is possible to effectively use quarry dust for construction works involving black cotton soil. However, quarry dust amounts should be such that the mixture does not become non-plastic.