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The strength of the 5% replacement by coffee husk ash showed increase in compressive strength from 17.23 N/mm2 at 7 days to 21.02 N/mm2 at 28 days (22% increment). The 28 days' strength was …
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Five concrete mixtures containing 0%, 5%, 10%, and 20% MDP as cement replacement by weightbasis has been prepared. Water/cement ratio (0.43) was kept constant, in all the concretemixes. …
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3.1 Materials Used 3.1.1 Cement and Aggregates. In the present study, ordinary Portland cement of grade 53, confirming to IS: 12269-1987 [], was used for preparing the concrete.The specific gravity of cement was 3.15. Fine aggregate—natural river sand passing through 4.75 mm IS sieve is used for making concrete.
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The concrete mixtures containing waste aggregates are donated as follows: plastic – PAC 15 and PAC 30, rubber – RAC 15 and RAC 30, and glass – GAC 15 and GAC 30, for the 15% and 30% replacement levels, respectively. The Concrete and Cement Institute (C&CI) mix design approach was adopted for developing all mixtures [38].
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EXPERIMENTAL SETUP. As the title of the investigation program shows, the work is based on the mechanical and durability of concrete with manufactured sand replaced with …
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Test Procedure. STEP 1 – The soil surface should be even & clean where the test is going to be conducted. STEP 2 – Now place the metal tray over the soil surface & excavate the soil through the hole up to 12cm and collect the soil on the metal tray. STEP 3 – Note the weight of excavated soil as We.
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This study investigated the use of sawdust as partial replacement. for fine aggregates in concrete production. Sawdust was used to replace fine aggregates from 0% to. 50% in steps of 10%. Concrete ...
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Trial mix design were conducted to obtain the target strength of 35 MPa at 28 days with a workability of 100–125 mm as per American Concrete Institute ACI 211.1 (ACI, 2009).The glass powder replacement in cement was varied (0–25%). Mix proportion of concrete is shown in Table 6.Firstly, stone chips and sand were dry mixed for a minute.
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This investigation used sawdust to substitute river sand in the concrete mix proportions of 5%, 10%, 15%, and 20% by weight. The impact of compressive strength, workability, and density was investigated by changing the amount of sand replacement with sawdust. Concrete cubes of 100 mm × 100 mm × 100 mm were produced for …
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A paired comparison test was carried out examining two different partial replacement shell aggregate mixes against a plain concrete control sample., – The results showed a reduction in compressive strength when 50 per cent of sea shells were used as an aggregate replacement, for both sand and gravel, compared to the control sample.
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This project presents the optimization of replacement of manufactured sand by natural sand with super plasticizer admixture. Concrete mixes for M20, M25 and M30 were …
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Using discarded sand from foundry as a substitution for sand in concrete produces concrete with good properties, boosting its application in buildings. The use of …
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Quarry dust satisfies the reason behind the alternative material as a substitute for sand at very low costIt is found that 40% replacement of fine aggregate by quarry …
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• Usage of Nano materials in concrete is difficult to replace the materials in concrete like cement. 24. CONCLUSION • Well dispersed Nano particles increase the viscosity of the liquid phase, improves the …
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Also it effectively fills the voids and gives dense concrete microstructures, 3) The replacement of cement by glass powder in concrete also increases the split tensile strength of concrete. Increase of 2.82 %, 7.05 % and 16.47 % strength can be achieved when 5%,10% and 15% cement was replaced by glass powder in concrete when water/ …
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The usage of WFS as a sand replacement by 20% weight of fine aggregate has reported to increase the compressive strength (21.70%) of green concrete above control concrete. ( Ali et al., 2022 ). Thiruvenkitam et al. (2020) discovered that the elastic modulus, flexural strength, and compressive strength of the partial replaced concrete …
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The present study investigates the use of PET as a replacement for sand in concrete. In this study, a concrete mix with a 28-day compressive strength of 35 MPa was prepared, and then natural sand was replaced by 10%–50% of crushed recycled plastic to determine the impact of substitution levels on concrete properties. The effects on ...
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Home. Engineering. Materials Engineering. Powders. Article PDF Available. Effectiveness of Glass Powder as a Partial Replacement of Sand in Concrete Mixtures. …
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It discusses what recycled aggregate concrete is, its characteristics, classification, production process, uses, applications, and benefits. Recycled aggregate concrete is produced using crushed waste concrete as a substitute for natural aggregates. It has properties like lower strength, density and higher water absorption compared to …
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Present experimental work explores the possibility of using GBFS as replacement of natural sand in concrete. In this study an attempt is done to understand the variation in …
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Utilization of glass powder waste for concrete mixtures is now being developed. This research was conducted to determine the optimum composition of glass powder as a partial replacement of sand ...
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May 10, 2018 • Download as PPTX, PDF •. 8 likes • 2,363 views. AI-enhanced title. Ujwal Ujwal. foundary sand. Engineering. 1 of 15. Download now. Foundry Sand Uses in Construction - Download as a PDF or view online for free.
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In this paper study of Compressive strength, Split Tensile Strength, Workability and water absorption of concrete is done when its fine aggregate is replaced by Glass Powder. 150 * 150 * 150 mm cube and 150 * 300 mm cylinders are cased of M 25 grade of concrete. Aksaray University Journal of Science and Engineering.
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The other concrete mixes were made with waste-iron aggregate replacing 10%, 15% and 20% of the sand and with the same amount of cement, amount of gravel and water-to-concrete ratio as in the reference mixes. Both types of concrete mixes were cured for 3, 7, 14 and 28 days. 3.2.
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Natural sand was replaced with 5, 10,15 and 20% water treated saw dust in concrete mixture. The effect of silica fume on properties of concrete containing 5% water treated saw dust was also studied by replacing 4, 8 and 12% cement with silica fume in concrete. It was observed that concrete made with 5% water or sodium silicate treated …
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The results from the study showed that when waste glass was used as a partial replacement for coarse aggregate, it caused a reduction in the slump, density, …
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Abstract. Nafisa Tamanna studied the use of waste glass as sand and cement replacement in concrete. She found that the addition of glass sand and glass powder can be a good substitute for natural sand and cement, respectively. Cairns Regional Council has successfully implemented her research on their concrete footpath trial.
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Use of Waste Materials As a replacement of Coarse Aggregate in Concrete Mix - Download as a PDF or view online for free ... High performance concrete ppt. ... Water = 26.9755 lit Cement = 50 kg Sand = 73.584 kg Coarse aggregates = 147.795 kg Therefore, actual mix proportion is 0.54 : 1 : 1.47 : ...
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Sep 8, 2015 • Download as PPTX, PDF •. 47 likes • 18,214 views. S. snehith devasani. sugarcane bagasse ash in concrete. Engineering. 1 of 23. Download now. Utilization of sugarcane bagasse ash in concrete - Download as a PDF or view online for free.
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In the concrete mixes sand was replaced at 5%, 10%, 15%, 20% and 25% by weight and effects of replacement on concrete is observed. Use of saw dust in concrete permits disposal of waste (saw dust) and make concrete light in weight. Concrete, cubes measuring 150 x 150 x 150 mm, beams of sizes 550 x 100 x 100 mm and cylinder 15 cm …
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