quarry dust and the suitability to use it as partial replacement material for sand in concrete. Design mix of M20 grade concrete was used with replacement of 0%, 20%, 30%, 40% and 50% of sand by quarry dust. They conducted slump test, compaction factor test, compressive strength (cube, cylindrical sample), split
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The objective of this study was to assess the feasibility of using quarry dust as a replacement for fine aggregate in mortar. Various experimental investigations have been carried out to evaluate ...
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On the other hand, the carbonation resistance is reduced with the addition of fine recycled aggregate to the concrete. Similarly Levy and Helene [18] observed that the carbonation depth decreases with the increase of recycled fine aggregate as replacement to natural aggregate. However, by using recycled aggregates, they found that the ...
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Recent research conducted at the Illinois Center for Transportation evaluated sustainable applications of quarry by-products (QB) or QB blended with …
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The accurate exploration and 3D quantitative evaluation of faults in deep coal-bearing strata in complex structure areas is still significant technical challenge. This study improves the exploration accuracy by developing a set of high-precision 3D seismic exploration and interpretation technology systems to complete the accurate exploration …
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The authors applied Model Code's recommendation, taking into account different densities of natural fine aggregates (FNA) and fRCA (by which the replacement ratio was considered) and the type of superplasticizer used, which influences the water-to-cement ratio, as follows: (1) f c t m = a ⋅ f c 2 3 ⋅ ((1 − r) ⋅ ρ F N A + r ⋅ ρ f R C ...
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performance evaluation of f ly a sh-based geopolymer concrete incorporating nano slag 75 based geopolymerization, Industrial & Engineering Chemistry Research, 45 ( 10 ), 3559 - 3568 .
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Millions of tons of iron ore tailings (IOT); a by-product of iron ore processing, are disposed of every year in landfills, quarries, rivers, oceans among others thereby posing environmental problems.
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Section snippets Materials. A commercially available Portland cement classified as Type III by ASTM C150 [19] and Type CPV ARI by the Brazilian Standard ABNT NBR 5733 [20], was used in all of the mixtures. According to the cement manufacturer, it had a Blaine fineness of 394 m 2 /kg, and specific gravity of 3.12. The …
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This paper presents a case study for constructing aggregate subgrade improvement (ASI) layers using quarry by-product aggregates (QBA)—a quarry mix of large primary crushed rocks (PCR) and sand ...
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1. Introduction. Loess is a silt-sized dominated soil primarily distributed in semi-arid and arid areas and form three characteristic types of geomorphic structures: loess tablelands, loess ridges, and loess domes (Liu Citation 1985).Loess tablelands are flat and the most valuable land resource for farming and living on the Loess Plateau (Liu Citation 1985; Derbyshire …
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Quarry dust, a by-product of the crushing process of stones in quarries, has emerged as a viable option due to its abundant availability and similar physical properties to sand. The …
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The study aims to suggest an optimization technique to determine the proportion of Graphene Nanoplatelets, copper slag, and quarry dust for concrete manufacturing. The individual and combined effects of the aforementioned materials on slump, compressive, splitting tensile and flexural strength are studied through Response …
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The present study focuses on utilizing stockpiled dolomite quarry waste for sustainable and cleaner production of concrete. Natural river sand is substituted with dolomite quarry waste at 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and in concrete mixes. The test findings revealed the concrete mix made with 10% dolomite quarry waste …
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The performance evaluation for the use of quarry dust waste in subgrade stabilisation based on group index (GI) method has been discussed in this paper. ... Expansive clays are fine grained soil ...
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@article{Galetakis2012EvaluationOF, title={Evaluation of fine limestone quarry by-products, for the production of building elements – An experimental approach}, …
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DOI: 10.1016/J.CONBUILDMAT.2015.10.204 Corpus ID: 110570013; A review on the utilisation of quarry and ornamental stone industry fine by-products in the construction sector @article{Galetakis2016ARO, title={A review on the utilisation of quarry and ornamental stone industry fine by-products in the construction sector}, author={Michael …
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Contribute to brblmd/sbm development by creating an account on GitHub.
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The results show that a 20% substitution of pit sand with quarry dust produced the highest average compressive strength of 1.46 N/mm 2. However, the compressive strength of the blocks reduces as the proportion of quarry dust increases. It is recommended that at most 30% of quarry, dust replacements be used for non-load …
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Quarry by-products (QB) pose a major environmental challenge for quarries as they accumulate in large quantities, and their beneficial uses are continually sought out. Research at the Illinois …
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The production of building stones shown an exponential growth in last decades as consequences of the demand and developments in the extraction and processing techniques. From the several conditioning factors affecting this industry, the geological constrains at quarry scale stands out as one of most important. Globalization …
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® Site Evaluations. Reach your quarry operation's goals and lower your cost per ton with a ® Site Evaluation. Through detailed on-site analysis, our industry experts connect their technical insights to custom …
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This work is related to study the compressive strength of concrete using quarry dust as fine aggregate instead of sand and 10mm washed aggregate instead of conventional granite. Three mixes of 1 ...
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DOI: 10.1016/j.jobe.2024.108876 Corpus ID: 268005584; An integrated evaluation of graphene-based concrete mixture with copper slag and quarry dust using response surface methodology
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A geochemical study of Tse-Kucha limestone of the middle Benue Trough as exposed at Dangote Cement Company was carried out. The study aims at reconstructing the depositional history of the deposit ...
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Specially proportioned mixtures of quarry dust, cement and sand, were humidified and compacted to produce specimen, which after curing exhibit suitable physical and …
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During the treatment of dolomite rocks, a huge amount of fine fractions (0…8 mm) are produced and classified as by-products due to the limited range of applications. For example, nowadays more than 400 000–450 000 t dolomite by-products are deposited in a single quarry and the annual increase of this material is 50 000 t.
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The effects of quarry waste fine aggregate on several fresh and hardened properties of the concretes were investigated. It was found that quarry waste fine aggregate enhanced the slump and slump ...
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In underground mining and civil structures, stability is vital for safety and functionality of the space. It is therefore essential to evaluate and predict potential failures and suggest possible countermeasures. This paper presents findings of a study conducted to assess the stability of Oya Underground Quarry in Japan that uses room and pillar mining method, …
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To c a st spe c ified numbe r of c ube s, c y li nde r a nd be a ms b y r e plac in g fine a ggre g a t e with sa wdust b y 1%, 2 %, 3% & a nd t o c ompar e thei r pr ope rt y with s tanda rd mix ...
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