alternatives, such as offshore sand, quarry dust and filtered sand have also been made (W.P.S. Dias et al 2008)[2]. Physical as well as chemical properties of fine aggregate affect the durability, workability and also strength of concrete, so fine aggregate is a most important constituent of concrete and cement mortar. Generally
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The challenging issue of demand for sand in concrete can be addressed by exploring alternative materials. Mechanism sand [12], aeolian sand ... The mechanical characteristics of geopolymer concrete made with sea sand as the fine aggregate were researched by Khoa et al. [150]. The geopolymer concrete reached a high compressive …
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On the other hand, agro-wastes, to industrial by-products, alternative materials for fine aggregate in concrete can be of a wide variety. In the following section, you will get a brief idea on these aggregate alternatives. ... Few studies produced washed glass sand to gain the Fineness Modulus of natural sand. Cement, coarse aggregates, ...
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Traditional aggregates can be replaced by plastic aggregates derived from recovered plastics like polyethylene and polypropylene. These lightweight aggregates can aid in the reduction of plastic waste. Plastic aggregates are frequently employed in non-structural applications like decks, fences, and walkways. Rice Husk Ash (RHA)
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A differing ratio of scoria was considered as a partial replacement of fine aggregate with river sand after analyzing its engineering properties, and its effect on the mechanical properties of concrete were examined. ... A. Suitability of Ambo Sandstone Fine Aggregate as an Alternative River Sand Replacement in Normal Concrete Production. Am. J ...
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A Jayaraman et al /International Journal of ChemTech Research, 2019,12(2): 37-50.40 3.1.3 Silicasand:Silica sand is partially replacement of river sand.it is collected from BAG Groups Coimbatore, India. The bulk density of silica sand 1760 kg/m2 and the specific gravity 2.68 and fineness modulus of rive Sand is 2.76.The physical and chemical properties of lateritic sand …
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Crushed Rock Sand (CRS), Recycled Fine Aggregates (RFA), and Industrial by-products are examples of alternative fine aggregates.
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The study investigates the use of crushed rock sand as viable alternative to Natural River sand that is being conventionally used as fine aggregate in cement concrete.
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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 aims to ...
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1. Natural Aggregates. Sand (0.075-4.75mm): Fine aggregate for concrete and mortar; Gravel (4.75-75mm): Naturally rounded river or pit materials; Crushed Stone: …
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Based on a brief review study, it was noticed that still there are gaps to be fulfilled on complete replacement of river sand in mortar with suitable alternative fine aggregates. In the present days, river sand extraction is a themed problem due to various environment threats such as river bed degradation, saline water intrusion, depletion of ...
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Crushed rock sand (CRS), industrial by-products (IBP) and recycled fine aggregates (RFA) are different types of alternative fine aggregates. The economic, …
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The deficit of natural sand arise the need of alternative materials for replacement of natural sand. This experimental study explores in detail the crushed stone dust which is locally available industrial solid waste material in India as alternative material to natural sand that is being conventionally used as fine aggregate in cement concrete.
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Quarry dust can be partially used as an alternative to river sand, as fine aggregate in concrete production. It is basically a by-product of stone crushers produced during the crushing and screening process of coarse …
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In this investigation, four types of sands as alternatives to river sand, namely, crushed sand (CS), marine sand, fine recycled concrete aggregate (FRCA), and fine reclaimed asphalt pavement (FRAP), were studied for their potential for cement-concrete pavement applications.
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At the same time articles based on cement replacement, fine aggregate replacement, alkali-activated concrete, self-healing concrete, etc., were eliminated as the current review does not concern those materials. A total of 204 articles strongly relevant to the study are selected after critically assessing the literature and used for the present ...
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Alternative sand can be classified as crushed rock sand (CRS), recycled fine aggregates (RFA), and industrial by-products. Alternative sand or manufactured sand is made from other than natural sources, by processing materials, using …
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Explore innovative alternatives to sand in concrete production in our latest article! Dive into options like crushed glass, recycled plastic, and coconut husk that enhance strength and sustainability.
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The river sand is widely used as a fine aggregate in the construction industries. River sand demand has risen leading to a massive depletion of the natural resource relative to any other natural resource. Researchers has proposed various alternatives to sand, that also have their own merits and demerits.
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This scarcity has spurred the search for alternative fine aggregates with manufactured sand produced using crushers, which are emerging as a promising substitute. This artificial sand must adhere to the accepted gradation standards, as it can reduce the voids and cement consumption, enhancing the cost-effectiveness.
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For the conventional application of alternative sand mortar, it is important to know its engineering attributes. Therefore, the present paper aims to summarize the existing research on replacing natural sand with copper slag, crushed rock sand, copper slag, foundry sand and recycled fine aggregate in mortar with focus on fresh, hardened and ...
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19% River sand M sand 81% 0 4 8 12 16 20 24 28 32 36 40 Offshore sand Figure 4: Fine aggregate usage by large scale contractors M sand River sand Figure 5: Sand types used in small scale projects Activities like construction of shopping complex and office building were considered as medium scale projects and Figure 6 shows the usage of ...
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Concrete is the second consuming materials in the world next to the water. In conventional concrete, nearly 65-70% volume will occupy the natural aggregates.
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This study aimed to explore the possibility of utilizing crushed glass as an alternative fine aggregate for concrete by replacing concrete with crushed glass. Specifically, the study sought to assess whether there is a significant correlation between crushed glass volume in concrete and its compressive strength and also between sand volume in ...
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Thus serious awareness has been taken into consideration, has to be identified as a potential river sand substitution for fine aggregates replacement in concrete. For this review, utilizing recycled material are described as a fine aggregate replacement to river sand, particularly recycled Polyethylene Terephthalate (PET) bottles.
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Crushed Rock Sand (CRS), Recycled Fine Aggregates (RFA), and Industrial by-products are examples of alternative fine aggregates. These alternative fines can be employed as a full or partial substitute for river sand, resulting in two benefits: conservation of natural resources and mitigating environmental issues (Singh et al. 2018; Su et al. .
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Alternatives for natural sand (fine aggregate) The rising population, shifting consumption patterns, infrastructure development, and increasing urban- ization over the last two decades have ...
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This dissertation is about replacing natural sand with manufactured sand, which is replaced by 50%, 75%, and by weight in M-25 and M-40 grades of concrete. The tests for 7, 14 and …
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alternative fine aggregates for concrete and mortar: a brief review on river sand substitutions, Australian Journal of Civil Engineering, DOI: 10.1080/14488353.2021.1971596
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production. River Sand used as fine aggregate in concrete is derived from river banks. River sand has been the most popular choice for the fine aggregate component of concrete in the past, but overuse of the material has led to environmental concerns, the depleting of river sand deposits and an increase in the price of the material.
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Fineness modulus of fine aggregate is calculated by sieving fine aggregate on standard sieve sizes starting from 4.75 mm to 150 microns, it is derived by summation of cumulative percentage retained on each sieve divided by 100 …
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Fine aggregates showed the highest number of alternatives and replacement level, with the relevant impact on concrete properties; coarse aggregates, however, always reach a complete replacement ...
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Download Citation | Alternative fine and coarse aggregates in concrete: a review | Concrete is the most commonly used material in the construction industry, with concrete aggregates accounting for ...
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Due to the restriction for the use of river sand in several parts of the world to protect river beds, the demand for alternative fine aggregates is significantly increased in the construction sector. On the other hand, the disposal of industrial by-products is a major concern because of stringent environmental regulations.
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Present study investigates flow and strength characteristics of cement mortar at various replacement levels of alternative fine aggregate, M-sand. Plastering mortars (1:3 and 1:4 ratio) were prepared with natural sand as fine aggregates. Flow characteristics of the mortar was studied by conducting flow test to attain flow of 110% for plastering ...
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Aggregates make up 65–80% of concrete by volume, and relying solely on natural sand and gravel could deplete mineral resources as demand grows. To address this, recycled …
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concrete and mortar as an alternative of sand, African Journal of Environmental Science and Technology Volume 5, Issue 5, pages 381-388. [2]. Kujur, Franklin Eric. Srivastava, Vikas. ... Shilpa Thakur "M Sand as Fine Aggregate Replacement in Concrete: Effect on Compressive Strength "International Journal of Engineering Research and Applications ...
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To investigate the effects of brick fine aggregate (BFA) as an alternative to natural sand, brick fine aggregates (denoted as S1, S2, and S3) were acquired from three distinct sources near Dhaka to make concrete …
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Crushed rock sand has surfaced as a viable alternative to Natural River sand and is being now used commonly throughout the world as fine aggregate in concrete. It is manufactured by crushing the quarried stone to a size that will completely pass through 4.75 mm sieve.
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Fine aggregate is playing a vital role in both concrete and mortar. The main source of fine aggregate in the resent past is the river sand. The demand for natural river sand has increased as a ...
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