Plastic waste that has been shredded is fe into an injection machine to be shaped similarly to natural coarse aggregate and is re ferred to as plain plastic aggregate (PPA); it has a size of 7.5 ...
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The compressive strength of cubes at 28 day curing for control mixture of 1:3:6 at 0% partial replacement of river sand with quarry dust was 12.6N/mm 2 but compressive strengths of 21.5 N/mm 2 and ...
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The recycled coarse aggregate (RCA) concrete satisfied the specified 28-day design strength of 25 MPa and 40 MPa at 28 days and a mean compressive strength …
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researchers have studied the use of waste glass larger than 4.75 mm as coarse aggregate replacement in concrete since the 1960s. Use of coarse glass aggregate reduced compressive strength as content increased, and mixed results were reported on the effect of glass aggregates on the workability of concrete due to the
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Recycled coarse-aggregate (RCA) derived from waste concrete can be re-used for concrete preparation, which is now limited due to its drawbacks such as micro …
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Additionally, the compressive strength of C-FA aggregate concrete was found to be higher than those with similar percentage of aggregate replacement, but more cement content reported in the ...
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The average compressive strength of laterized concrete was found to be 29.05 N/mm 2 a value lower than the average value of 40 N/mm 2. The compressive strength obtained by concrete replacing ordinary sand …
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The strength characteristics of copper slag incorporated concrete was found out by replacement of 20%, 40%, 60%, 80% and 100 %, out of this 40% replacement gives highest compression strength at 28 ...
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PROPERTIES ON COMPRESSIVE STRENGTH OF CONCRETE CONTAINING QUARRY DUST AND WASTE PLASTIC AS FINE AGGREGATE ... for different quarry dust to coarse aggregate ratio, Goble (1999), De Larrard and Belloc (1997) ... Table 4 Physical and mechanical properties of waste plastic Coarse aggregate Natural aggregate …
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Comparing to normal concrete the compressive strength is increased 29.25% with 10% of Fly ash for 56 days. ... 15%, 20%, and 25% of Fly Ash in the combined mix. PPC Cement, Fly Ash, Quarry Dust, Fine Aggregate, Coarse Aggregate, Water, and Conplast SP 430 were utilised in this study. ... Effect of industrial waste on strength …
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This study investigates the use of waste ceramic tiles as coarse aggregates in concrete at replacement levels of 0, 10, 20, 30, 50, and by weight of natural coarse aggregate. Concrete cylinders were cast and tested for compressive and splitting tensile strength after a curing period of 7, 14, and 28days.
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Effects of Waste Powder, Fine and Coarse Marble Aggregates on Concrete Compressive Strength. November 2022. Sustainability 14 (21):14388. DOI: …
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One batch of concrete was prepared using standard and conventional ingredients, and the remaining six batches were made using recycled coarse aggregate (RCA) in place of all natural coarse aggregate (NCA), all quarry dust (QD) in place of river sand, and varying quantities of metakaolin (0, 5, 10, 15, 20, and 25%) in …
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This research work presents laboratory investigations on the efect of diferent water-cement ratios on the workability and compressive strength of concrete made with 50% …
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The cube compressive strength of the concrete having a water cement ratio of 0.45 and coarse aggregate to total aggregate ratio of 0.65 is determined and is given in Fig 6. The cube compressive strength of concrete having a cement content of 250 kg/m 3 is found to be between 20 MPa and 28 MPa.
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2.3 Mix proportions The mix proportion of 1:1.23:2.64 (cement: fine aggregate: coarse aggregate) by weight was arrived for M20 concrete with the conventional aggregates.
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This implies that there is a negligible decrease in compressive strength of concrete when sandstone is used as coarse aggregate in concrete at 0.48 w/c ratio for concrete grade 20 N/mm 2 . ...
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compressive strength and the test parameters for each and every form of marble waste (powder, fine and coarse aggregate). The study indicated that independent from the form of marble wastes (as powder, fine aggregate or coarse aggregate), aggregate replacements of up to 50% can yield to significant changes in the concrete …
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2.4. Granite Aggregates. The main objective of the present study is just to compare the strength of the material to different grades of concrete by replacing basalt aggregates with granite chips. Initially, the granite sizes were available from 40 mm to 80 mm, so it was crushed manually to 20 mm-12.5 mm downsize.
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In our study, in which waste glass (WG) is considered as coarse aggregates in the concrete, WG was used reduced to 4–16 mm in proportions of 0–60% in the production of PKÇ/B 32.5/R type cement.
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The coarse aggregate comes from the disintegration of volcanic rock, extracted naturally from boulders, or crushed by machinery, classified by ASTM C33 [7] in diameter greater than 4.75mm, ideal for the preparation of concrete. For this study, coarse aggregate was obtained from the quarry located in the district of Huamancaca
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From the results show that compressive strength of concrete with quarry dust as aggregates is the highest with 30.82 MPa with density 2251.85 kg/m 3 . This show, ceramic waste and quarry dust can ...
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Five mixes with replacement ratios of 20%, 40%, 60%, 80% and of ordinary coarse aggregates (OCA) by recycled concrete aggregates (RCA) were …
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with GBFS as fine aggregate and marble was te a s coarse aggregate was 6 .14%, 7.25%, 5.72% and 3.04%,respectively higher than t hat of concrete with river sand as fine aggregat e. and marble ...
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As a matter of fact, only 6% of 152 samples with W/(C + WMP) ratios greater than 0.30 experienced reductions in compressive strength, whereas the compressive strength …
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The stress–strain performance of specimens having natural coarse aggregates is better than 20% E-waste coarse aggregate samples, demonstrating that compressive strength decreases by replacing ...
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Density of fresh concrete shown in Fig. 4slightly decreased by increasing the percentage of coarse aggregate in the concrete mix. The … See more
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This chapter discusses the use of quarry waste as cement and aggregate replacement, discussing the effects on fresh and hardened properties as well as …
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Source of Recycled Aggregate Average compressive strength of reference concrete after 28 days [MPa] Amount of replacement of Natural Aggregate [%] Average compressive strength of concrete after 28 days [MPa] Remarks Reference; About 25 years old demolished building: 31.00: 10: 29.80: Cubic specimens 150 × 150 …
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Vanitha et al., [6], investigated the use of plastic waste as a substitute for coarse aggregate in M20 concrete grade using 0-10% replacement with a 2% increment. The optimal concrete compressive ...
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An experimental study had been conducted to study the effects of using waste Shabath stone in the place of coarse aggregate by partial replacement in various percentages such as 10, 20, 30 and 40 ...
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The combination of waste glass and granite were used as co arse aggregate at 0%, 10%, 15%, 20%, 25%, 30% and 35% . The mixing was done on a dry, clean and hard surface. The fresh mixture was cast ...
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As it can be easily seen, the increase of b (i.e. the increase of the percentage by volume of coarse aggregates in the granular skeleton) results in an increase of the concrete compressive ...
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Regression analysis and validation of the models developed was done to co-relate the results of compressive strength for 7, 14, 28, 90 days .The addition of fine quarry dust with ldpe as waste ...
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Dolomite aggregate waste particle had a coarse porous surface that absorbs more water in the mix, which may also be a reason for the poor workability in fresh dolomite aggregate concrete. ... 10, 15, and 20%, respectively. The dolomite crushed sand concrete compressive strength was found 38.1, 39.0, 41.3, 43.3, and 44.9 (MPa), …
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The flexural strength results were found in the range of 8.699 MPa to 10.368 MPa for 7 days and it is from 13.945 MPa to 18.015 MPa for 28 days. From the results, it was observed that, the tile aggregate concrete can produce strength results similar to that of conventional aggregate concrete for both at 7 and 28 days.
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ceramic waste coarse aggregate and quarry dust fine aggregates concrete more less cohesive. and workable than con v entional concrete becaus e high water absorption of cera mic waste …
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By replacing fine aggregate with quarry dust in a ratio of 60:40, as done by Hmaid Mir, the compressive strength was maximized. According to Felekoglu et al., adding quarry waste at the same cement content typically results in a reduction in the need for super plasticizer and an increase in the 28-day compressive strength of SCC.
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Research have proven that incorporating very fine waste quarry particles in the range of 10%–20% ( Rathore et al., 2020) of the total fine aggregate content of a concrete mixture can increase the 28-day compressive, tensile, and splitting tensile strength of concrete. Researchers agree that waste quarry dust at 20% ( Imran and …
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