waste foundry sand that used in this study is in between #10 (2 mm) and # 200 ( mm) sieve sizes. 11 percent of foundry sand is smaller than #200 sieve size. Particle shape of the foundry sand is typically sub angular to rounded. Foundry sand consists primarily of silica sand which has more than 80% silicon dioxide, coated with a
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foundry sand. The results showed that replacement of 10% aggregates with waste foundry sand was found to be the most suitable for asphalt concrete mixes as higher replacement levels caused reduction in strength beyond tolerances. Naik et al. (2003) [10] conducted the tests for abrasion of concrete with foundry sand.
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High strength concrete is a useful material for highrise buildings, longspan bridges, heavyduty industrial floors, prestressed concrete, etc. Concrete is a mixture of cement, water, coarse and fine aggregates with or without chemical and mineral admixtures. As aggregate covers 75 percent of the volume of concrete, for HSC, highstrength ...
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High strength concrete is a useful material for highrise buildings, longspan bridges, heavyduty industrial floors, prestressed concrete, etc. Concrete is a mixture of cement, water, coarse and fine aggregates with or without chemical and mineral admixtures. As aggregate covers 75 percent of the volume of concrete, for HSC, highstrength ...
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· A sustainable, high strength concrete mixture using waste foundry sand was investigated in this study. Mechanical properties, hydration reactivity, and alkali silica reactivity were monitored on two series of UHSC mixtures blended with spent foundry sand up to 30% replacement of fine aggregate by volume.
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green foundry sand obtained more compressive strength, tensile strength and modulus of elasticity than conventional concrete when made with high water cement ratio. Guney et al.(2010) investigated the reusage of WFS (0, 5, 10, and 15%) in high strength
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properties of concrete containing used foundry sand. Concrete was formed by replacing natural sand with UFS in various percentages (10%, 20%, 30% and 40%). Based on the test results they concluded that (i) workability goes on decreases with increase in UFS content; (ii) At 28days, Compressive strength, splitting
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properties of concrete containing used foundry sand. Concrete was formed by replacing natural sand with UFS in various percentages (10%, 20%, 30% and 40%). Based on the test results they concluded that (i) workability goes on decreases with increase in UFS content; (ii) At 28days, Compressive strength, splitting
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substitution of natural sand with used foundry sand causes a small reduction in strength of concrete. Likewise, Khatib, B. Baig, Menadi and Kenai [10] explain that the incorporation of waste foundry sand in concrete causes a systematic decrease in workability and strength as well as an increase in water absorption of concrete.
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green foundry sand obtained more compressive strength, tensile strength and modulus of elasticity than conventional concrete when made with high water cement ratio. Guney et al.(2010) investigated the reusage of WFS (0, 5, 10, and 15%) in high strength
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sand by 25% and 35% of clean/used foundry sand. The experimental results based on compressive strength At 28 days the concrete containing used foundry sand gave20%30% lower value when compared to control mix. But concrete containing clean/new foundry sand gave almost the same compressive strength as that of the control mix.
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High strength concrete is a useful material for highrise buildings, longspan bridges, heavyduty industrial floors, prestressed concrete, etc. Concrete is a mixture of cement, water, coarse and fine aggregates with or without chemical and mineral admixtures. As aggregate covers 75 percent of the volume of concrete, for HSC, highstrength ...
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partially replaced River Sand by Waste Foundry Sand and concluded that 30% replacement with Waste Foundry Sand gave maximum compressive strength (3). Abbas Al Ameeri varied Steel Fibers as volume fraction in SCC and determined its effect on mechanical properties of concrete. He concluded
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ash, and used foundry sand. The fine aggregate and Portland cement was replaced in two percentages, with usedfoundry sand and fly ash respectively. The results showed an improvement on strength and durability. In the precast molded concrete, the average compressive strength was .
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The pure aggregate gave a 28 days concrete strength of N/mm2, while 25% foundry gave N/mm2, other samples gave results that were very poor due to the presence of large clay particles. Foundry sand can be applied to fine aggregate in concrete up to 25% inclusion
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In the production of foundry molds and cores, foundry sand grains are bound together with a binder composition comprising a mixture of (1) an aqueous phenolic resin prepared by reacting a mixture of phenol and formaldehyde in the range of 1: and 1:, and optionally containing urea as a third component, and (2) cement such as Portland cement, alumina cement, magnesia cement and .
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