— Findings – 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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— Classification of fine aggregate based on the mode of origin. Based on its mode of origin, fine aggregate can be classified into the following. ... All about: sea sand . Specific applications of fine aggregate. The following are some examples of specialised applications for fine aggregate: To defend black cotton soil foundations;
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— It is observed that specimens with 20% percent and 30% replacement of fine aggregate by sea sand had their compressive strength 31% and 5% higher than the control mix. Increase in strength at 20% replacement shall be attributed to optimum filling of voids in concrete by fine particles of sea sand. Download: Download high-res image (112KB)
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— From the beginning of 1960s, researchers from the US and UK studied the effect of seawater and sea-sand used in concrete [4, 26, 33, 35], Griffin and Henry . This was followed by Japanese researchers who used desalted sea sand as one of the main sources of fine aggregate in concrete .
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— That portion of an aggregate passing the 4.75 mm sieve and predominantly retained on the 75 µm sieve is called "fine aggregate" or "sand," and larger aggregate is called "coarse aggregate". Coarse aggregate may be available in several different size groups, such as 4.7–19 mm, or 19–37.5 mm. Fine aggregates generally consist of ...
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— DOI: 10.1007/s41062-023-01355-8 Corpus ID: 267156187; A solution of sea sand as a sustainable fine aggregate: control harmful chloride ion by electric field force @article{Mao2024ASO, title={A solution of sea sand as a sustainable fine aggregate: control harmful chloride ion by electric field force}, author={Jianghong Mao and Changyu …
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— However, many studies [19], [36] conclude that sea sand can be directly used as fine aggregate in concrete, and the varied qualities and mixing ratios of sea water …
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In case of 80% replacement of sea sand as fine aggregate the Characteristic compressive strength is reduced by 49.37%. It is observed that for replacement of sea sand as fine aggregate in concrete compressive strength is reduced by 53.82%. Usage of Sea sand in concrete found there is a
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3.Shape of fine aggregates: Irregularly nodular shaped sand is preferable to completely round grained sand. The shape of the aggregate plays a more important role in the coarse aggregate than in the fine aggregate. 4.Specific Gravity: The specific gravity of aggregates is the ratio of the density of water to its density.
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— The utilization of sea sand as an alternative to fine aggregate in the manufacture of concrete is motivated by the availability of sea sand in nature in very large quantities. This study...
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Fine aggregate is basically any normal sand particle that comes from the land through the mining process. Fine aggregates comprise regular sand or any squashed stone particles that are 1/4″ or smaller. This item is frequently alluded to as 1/4″ short as it alludes to the size, or evaluation, of this specific aggregate.
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sea sand, as fine aggregate as partial replacement. 2. Materials and methods The sea sand samples were collected from Kuthenkuly (8.2162° N, 77.7803° E), Tirunelveli district of Tamil Nadu, India. Sample A which is yellowish white in colour was collected from the beaches. Sample C which is black in colour is collected
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— To understand the usability of sea sand as a replacement for fine aggregates in concrete many researchers have done various workability tests, Strength tests and Durability tests and compared the results with conventional concrete. This session deals with workability properties and the compressive strength. The following discussion will …
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— The partial replacement of sea sand as fine aggregate in concrete was used in gradually increasing proportion to make concrete blocks and then compression and tensile tests are done at 7, 14, 28 days of curing. In the chemical industry, concrete is affected by different chemicals so, the characteristic strength for M25 grade concrete …
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— The carbonation behavior of seawater sea sand recycled aggregate concrete (SSRAC) was investigated in this study. Considering different added water, fine aggregates, and coarse aggregates, the specimens were divided into 12 groups for the accelerated carbonation test by 7 days, 14 days, and 28 days.
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— This study is experiment the suitability to use beach/sea sand as a substitute for river sand as fine aggregate for concrete. Experimental results show that the washed sea sand is ideal for concrete and plastering activities. REFERENCE. National sand study for Sri Lanka, vols. 1 and 2. Final Report, Phase1, Delft Hydraulics; 1992.
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— This study utilizes recycled sand and shell sand to replace sea-sand in seawater sea-sand recycled aggregate concrete (SSRAC) and explores their dynamic …
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— Sand researches around the world are in continuous search for the alternatives of sand. Fine aggregate is an important constituent of concrete and is required in large quantities. Generally, river sand is used as fine aggregate. Due to the increase in the utilization of concrete in construction sector, the need for river sand has been …
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R.Mahendran, et,al.,(May-2016) "experimental study on concrete using sea sand as fine aggregate" Said, Sand has become a very important mineral for the expansion of society. Not only, is it used for glass but more so for making concrete, filling roads, reclamations and …
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The main aspect of this project is to utilize the sea sand as fine aggregate in concrete for construction after the removal of chloride content from the sea sand. Chloride content …
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— Sea sand is abundantly available and shall be a potential resource capable of supplying fine aggregate for domestic constructions. It is also economical form of fine aggregate at coastal regions.
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— In this study, replacement of sea sand instead of river sand as 20%, 30%, 40% and 50% respectively as partial replacement for fine aggregate. Analysis of the …
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— The concrete mix M4 (50% USS + 50%QD) is the optimum mix for complete replacement of river sand with both sea sand and quarry dust as fine aggregate. b) The 28-day compressive strength is maximum for the M6 mix ( QD) is 40.8 ± 1.15 MPa and lowest is for M2 mix ( USS) is 29.7 ± 0.90 MPa among all excluding control mix.
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— Fine aggregate (Sand) Fills voids between aggregates. It forms the bulk and makes mortar or concrete economical. It provides resistance against shrinking and cracking. ... Sea Sand. 1.1. Pit Sand …
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— In 2013, work is done by Alan Elliott Richardson, the use of a product of sea shell (marine litter) incorporated as aggregate in ordinary concrete by total replacement (sand or gravel). The results of this author showed a reduction of the compressive strength when 50% of shells were used as a total replacement for both sand and gravel, as ...
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— The present paper provides comprehensive evaluation of utilization of sea sand in concrete and emphasises the need for further research on sea sand as fine aggregate in concrete. Key words: Sea ...
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— Sand is often utilized as a fine aggregate in concrete, contributing 22 to 62% of the total mass. The quantity and features of sand in concrete have an impact on its …
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Concrete made from silica sand and artificial sand as fine aggregate was studied for compressive strength, Split tensile strength and Flexural strength. So in this project, Silica sand and artificial sand had been used as replacement of fine aggregate by different percentage for making concrete of M-30 grade, with w/c ratio 0.42.
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CDE Mariner range of sea sand washing plant can treat upto 350tph sand for production of both concrete sand and plaster sand (depending on feed gradation) as per BS 882:1992 specification. In keeping with the core competency of CDE, the plants are skid mounted and require minimum foot print leading to low unit power consumption and minimum man ...
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— Sand: Sand is used as a fine aggregate in concrete work and is an important engineering material. Sand is a form of silica and natural sand is formed from weathering of rocks and of various sizes or grade and these may be angular or rounded and sharp. ... Coral sand, glass sand, gypsum sand, silica sand, river and sea sand, green sand, …
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— Artificial fine aggregates with the particle size smaller than 4.75 mm were used for casting ECC. In order to keep the artificial fine aggregate sizes as the same, the particle size distributions of GPA and CBA were sieved and re-grouped to the targeted value (Table 4). FSS-ECC was also produced as a control group in this study.
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