The heavyweight ultra-high performance concrete (HUHPC) was prepared with barite sand partially replaced by titanium-rich heavy slag sand (THS) at replacement …
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Replacement of quartz by barite aggregate has a more adverse impact on flexural strength than that of compressive strength. A mix that contains 40% barite aggregate of total …
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Different barite concrete mixes were designed, where barite is used once as an addition while maintaining constant the amount of cement (400 kg/m3) and as a substituent, …
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This study aims to evaluate the efficiency of ordinary concrete versus barite concrete as radiation shielding materials, focusing on the physical aspects and changes in …
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In this study, barite is used as fine aggregate mixed with Portland cement to design HWC. Different barite concrete mixes were designed, where barite is used once as an addition while maintaining ...
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The program investigates and analyzes the influence of several variables, including concrete strength class, pH levels of the surrounding environment, aggregate type, …
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Using barite as fine and coarse aggregates in concrete increases the radiation shielding capability, as well as the strength and density of specimens. Using cut steel bars as …
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ordinary and barite concrete in ... 60–90 Mpa, very high strength concrete (VHSC), grades 90–130 Mpa, and reactive powder concrete (RPC) ... concrete mix. The cement-to-water ratios for the ...
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The results showed that the replacement of cement with barite and hematite powder at all percentages reduced the compressive and flexural strengths of the concrete. ... UHPC with 30% lead powder ...
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The current study assessed two concrete mixes prepared using dolomite and barite/limonite aggregates to shield against both energetic photons and neutrons. After that, a designed mix which ...
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This paper presents findings of research conducted on the improvement of radiation shielding in concrete, using barite as fine aggregate. Barite is a heavy mineral, having specific gravity in ...
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In the study, performance of reactive powder concrete was researched with regard to gamma-ray and neutron attenuation when its normal weight aggregate replaced with heavyweight aggregate (barite). For this purpose, reactive powder concrete mixtures were prepared 100% quartz aggregate, 100% barite aggregate and their blending 50–50%, by volume.
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The results showed that the replacement of cement with barite and hematite powder at all percentages reduced the compressive and flexural strengths of the concrete.
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Barite powder as sand substitution in concrete: Effect on some mechanical properties
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Integral part of this study is replacing the normal coarse aggregate by heavyweight aggregate (Barite), and using recycled glass powder (RGP) as a partial replacement to fine aggregate (natural river sand) from 0% to 60% by …
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After that, a designed mix which comprised barite/goethite aggregates plus fine-powdered boron carbide additive, was proposed to improve the overall radiation shielding …
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It is found that the same resulted in durable concrete mix with the reduced strength at the end of 90-day exposure to alkaline environment being 79Mpa as compared to the designed strength of 60Mpa and the permeability of the concreteis found to be extremely low. ... The particle size distributions of cement and barite powder (Fig. 2) were ...
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The effect of sand substitution by barite powder on concrete has been examined. Limestone skeleton should be conserved to reduce the compressive strength loss. The use of …
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The trial mix which satisfies the rheological properties as per EFNARC guidelines and the corresponding developed mix which gives maximum compressive and splitting tensile strengths are used in the present work. ... Apr 2023 e-ISSN: 2395-0056 p-ISSN: 2395-0072 Study of partial replacement of cement by barite powder and silica fume ...
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REVIEW PAPER ON USE OF BARITE POWDER IN CONCRETE Bhruguli Gandhi Lecturer, Applied Mechanics Department, Government Polytechnic, Himatnagar, Gujarat Technological University, Ahmedabad. ... Table :2 Mix prepositions Water Cement Fine aggregates Coarse aggregates 186 lit/m3 414 kg/ m3 610.30 kg/ m3 1172.32 kg/ m3 0.44 1 2.83 1.47 ...
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Taking into account environmental factors in cement production, especially concerning CO2 emissions and energy consumption, this works aims at the development of concrete with lime powder. M30 grade of concrete is taken for investigation. The cement is replaced by lime of 5%, 10% and 15%.The concrete mix design will be done as per IS10262-2009.
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Barite powder has high specific gravity so the pores in the barite powder is filled by fine silica fume particles it will helps to increase the strength in concrete. Combination of barite powder and silica fume replacement cement in concrete is a better alternative to cement in self compacting concrete. Mix Splittensile strength(N /mm²)
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To measure the compressive strength of concrete mix designs, cubic specimens were made as mentioned previously, and their compressive strength was tested using a standard hydraulic testing machine. ... Tuyan M. Optimization of Reactive Powder Concrete by Means of Barite Aggregate for Both Neutrons and Gamma Rays. Constr. Build. Mater. 2018;189: ...
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Barite (BaSO4) is a mineral commonly used as aggregates to produce heavyweight concrete. The applications concern radiations shielding in hospitals and nuclear facilities.
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