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But 40% replacement is desirable and economical replacement of steel slag as compare to fine aggregate. Also 10%, 20% and 30% replacement increases the strength as compare to 0% or no replacement. 5.4. Flexural strength. The Flexural strength tests are carried out after curing with water for 7 and 28 days.
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The cost comparison is done together with the comparative analysis, and the lowest or best estimate is selected. ... The laterite content in the fine aggregate was varied from 0 to at 25% ...
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The slag is used as fine aggregate replacing the sand in the mixes, partly or totally. Ratios of 0%, 15%, 30%, 50% and are used. Depending on the grade of concrete, the compressive strength is improved when steel slag is used for low sand replacement ratios (up to 30%). When optimum values are used, the 28-day tensile …
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The increased electricity demand was mainly utilized to transport aggregates and operate carbonation equipment during the carbonation process in comparison to the two-stage crushing (Table 1). In addition, about 10 kg of CO 2 was sequestrated in one ton of RCAs during accelerated carbonation process as reported by Xuan et al. (2016b) .
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In order to provide recycled aggregates 10 bricks will be crushed. These will be used as recycled aggregates in the mixes at different percentages. The coarse aggregate will replace gravel at the following percentages; 0%, 25%, 50%, 75%, . Moreover, the fine aggregate will replace sand at the same proportions.
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40% optimal replacement. [36] examined the Evaluation of iron ore. tailings as a replacement for fine aggregate in concrete. Concrete mixtures containing 25, 50, 75, and IOT. as river sand ...
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Gravel, cobbles, and boulders are the types of coarse aggregates. They are used depending on the nature of the work. Coarse aggregate provides strength to the concrete. It Is widely used in the casting of slabs, beams, slabs, etc. with 20mm size. Here is the list of the particle sizes of the Coarse aggregates:
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As the current review focuses on the replacement of natural fine aggregates, keywords such as 'alternative fine aggregates', 'fine aggregate replacement' and 'recycled fine aggregates' were used for further screening of the literature, accounting for around 1436 journals. Only peer-reviewed articles and conferences were considered.
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Sand as a primary fine aggregate possesses superior adhesion of components in concrete. It provides strength by serving as small fillers in a mixture. Cement binds sand particles together forming one solid sand mix. ... concrete compare to other lightweight concrete which nail can also easily drive in but fail to hold [11]
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M25 grad e (cement: fine aggregate: coarse aggregate) is 1: 1: 2 as per IS 383- 1970 & IS 456- 2000 specifications & te sted for its strength for 7, 14 & 28 day s strength in which the
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Ferronickel slag (FNS) is an industrial by-product of ferronickel alloy production at a high temperature which can be a promising potential to be used as fine aggregate to produce more sustainable concrete. In this study, the performance of concrete containing ferronickel slag sand and fly ash relating to alkali-silica reaction (ASR) and …
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The study indicated that waste glass can effectively be used as fine aggregate replacement (up to. 40%) without subs tantial change in strength. Keywords: Glass, recycling, concrete, construction ...
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Sieve analysis is carried out from various fine aggregates (FA) and coarse aggregates (CA) samples and the sample which suits the requirement is selected. Fly ash will be used to replace cement by weight and by volume respectively. The Fine aggregate is partial replacement with 0%, 15%, 30%, 45%,60% and 75% by seashells.
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Effect of Size of Crushed Ceramic Tiles as Fine. Aggregates in Cement Composites. Ravindra R *, Anand kumar BG, Patil Lingaraj. Department of Civil Engineering, RV College of Eng ineering, VTU ...
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The total of aggregates produced in 2008 by weight was 69% limestone and dolomite, 15% granite, 7% traprock and 9% miscellaneous stones consisted of sandstone and quartzite, marble, volcanic cinder and scoria, slate, shell, and calcareous marl as shown in Fig. 1.By 2020, US production of crushed limestone is expected to increase by …
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with stone dust. The stu dy shows that compressive strength of concrete made using stone dust as fine aggregate. replacement having greater value in comparison of conventional concrete. Brajesh ...
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waste glass as fine aggregat e replacement decreased with. increases in the waste glass content but without l oss of. workability. The compressive, splitting tensil e and flexural. strength of co ...
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In previous work of this group, a structural lightweight concrete was developed by embedding silica aerogel granules in a high-strength cement matrix. This concrete, called high-performance aerogel concrete (HPAC), is a lightweight building material characterized by its simultaneous high compressive strength and very low …
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Generally, crushed stones of rocks are used as conventional coarse aggregates whereas Natural River sand is used as fine aggregate, both are available naturally . As concrete is the 2nd most usable material behind water by humans so due to their higher quantity usage leading to depletion of this naturally available material at …
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It is essentially made of Portland cement, water and aggregates (fine and coarse). Sand is the widely used fine aggregate, which is slowly being replaced by quarry dust (Koganti, and Chappidi ...
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According to their size, aggregates are generally inert and fall into one of two categories: fine or coarse. Fine aggregates are those with a grain size of 4.75 mm or less, and coarse aggregates are those with a grain size of 4.75 mm or more [35].There are various properties of aggregate that have to be checked before use in concrete such as …
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Consequently, comparison of these SEM images and test results show that chemical and physical properties of GBFS and BA as fine aggregate single or mutually are the main factors affecting the concrete durability. It is possible to produce durable concrete by using GBFS and BA as fine aggregate.
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The fine aggregate is replaced by RHA in conventional concrete (CC) with six different percentage by weight such as 0%, 10%, 20%, 30%, 40% and 50% having w/c ratio 0.375 with variation of super ...
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1. Introduction. Fine aggregate asphalt mixtures (FAM) are a combination of asphalt binder and the fine aggregate that pass through a No 4 sieve (4.75 mm) [1], [2].FAM are sand asphalt mixtures and are widely used in micro-surfacing and anti-skid layers [3], [4].FAM represent the characteristic scale of damage in asphalt mixtures and …
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Specific gravity of coarse aggregates = 2.65 It is compare to IS:2836 Part – 4 =2.7 Crushing Strength Test Observation Weight of sample retain in 12.5mm sieve (W1) = 3400g ... We must tests the fine aggregate and coarse aggregate. quality of materials must be controlled for the development of concrete technology.
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A concrete mix utilizing glass powder residue as a fine aggregate was analyzed for its qualities. Glass powder residue was used to replace sand in concrete at percentages of 12%, 22%, and 32%. A comparison of the compressive, split-tensile, and flexural test of 8- to 29-day-old concrete built from natural fine aggregates was produced.
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• The most significant results obtained for the manufactured aggregates studied in comparison to natural fine aggregate were found by using fine aggregate produced using the impact crusher and containing 14.5% microfines. It allowed, with nearly no change in workability, to produce a cement mortar with 28% lower absorptivity and 23% higher ...
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Figure 10 shows the comparison of experimental and predicted values for the drying shrinkage of concrete with heavyweight waste glass as the fine aggregate and steel slag as the coarse aggregate. The existing prediction models do not reflect the reduction in compressive strength and the increase in elastic modulus due to the steel …
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According to Ergun (2011), when 5% of cement is replaced with marble powder, the compressive strength improves to 11.30%, but drops to 12.14% when 10% of cement is substituted. When fine aggregate ...
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Also, a comparison of the properties of the aggregates is shown in Table 2. The specific gravity and water absorption of fine and coarse aggregates were measured according to ASTM 127 and 128 standards. ... The density of concrete decreased to 109 kg/m 3 (4.6%) and 228 kg/m 3 (9.6%) when fine aggregate was replaced with …
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Ordinary Portland cement (Binani 43 grade) of specific gravity 3.12 was used for the concrete mixes in this study. Fine aggregates (natural sand) of specific gravity 2.56 and coarse aggregates (crushed gravel) of maximum size of 12 mm of specific gravity 2.59 was used in this work.Rubber fibers of specific gravity of 1.07 and rubber ash of specific …
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The specific gravity of fine aggregate is typically in the range of 2.5 to 3.0, which means that it is 2.5 to 3 times heavier than an equal volume of water. The specific gravity of fine aggregate is an important property because it affects the strength and density of concrete. It is used in the calculation of the absolute volume of concrete ...
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Bottom Ash. is replaced 10%, 20%, 30%, 40% and 50% in th e place of fine aggregat e. These explain the various utilization of Bo ttom. ash and its ordinary Portlan d cement and properties in con ...
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to compare the quality and cost of the CHB with SCG to the standard CHB. The study used experimental research to obtain the results needed. The researchers produced CHB with 5%, 10%, and 15% replacement of fine aggregates cured for 7, 14, and 28 days. The study includes Compressive Strength Test and Water Absorption Test that were performed
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The effect of CWA replacement as fine aggregates at 0%, 10%, 20%, 30%, 40%, 50% and by weight on the density of Portland cement mortars at 28 days is given in Fig. 5. The results indicated that wet bulk densities of mortars with CWA were lower than that of control mortar, and were found to decrease with increasing CWA content.
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This study aims to develop high strength rubberized concrete by utilizing large amounts of fine materials and replacing 15% and 25% of the natural aggregates by volume with a well graded mix of ...
Detailsconcrete at different level of fine aggregate with stone dust. The percentage of stone dust was gradually increased in concrete and investigates its effect in sense of workability and compressive strength. The study shows that compressive strength of concrete made using stone dust as fine aggregate replacement having greater value in comparison ...
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The result shown the use of pumice sand as a substitute for fine aggregate can reduce the compressive strength of concrete by 23.53%. However, it can reduce the weight of concrete by 7.03%.
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In comparison to the control lightweight concrete, the 28-day WPLA concrete compressive strength decreased by 5%, 15% and 30%, with an increase of WPLA content of 25%, 50% and 75%, respectively. ... The fine aggregate was replaced by the same volumetric percentage of recycled PET. The study demonstrated that plastic particles …
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The prime use of sand, as fine aggregate is in the manufacture of concrete. As fine aggregate comprises up to 30% of the total volume of concrete, consequently gradation and fineness modulus of sand are among principal factors affecting the performance of fresh and hardened concrete. ... Comparison of gradation with ASTM …
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