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Shortage of good quality natural sand due to depletion of resources and limitation due to environmental considerations has made concrete manufacturers to look for suitable alternative fine aggregate. One such alternative is "manufactured sand".
أكمل القراءةHighlights. •. Utilization of alternative fine aggregates is the hour of need for sustainable construction. •. The alternative fine aggregates satisfies the requirements as alternatives to river sand. •. Crushed rock sand, industrial by-products and recycled fine aggregates are used as replacement of river sand. •.
أكمل القراءةIn this percentage 40 to 50 % proportion of aggregate is fine aggregate (sand). Fine aggregate selection plays vital role in concrete performance and its cost. Lately the need for replacing sand with alternative materials have picked governing serious environmental impact of dredging sand from river bed, also there is huge demand and supply gap ...
أكمل القراءة1) Pea Gravel. Pea gravel is a great alternative to sand for a sandbox because it is cheap and easy to find. You can get pea gravel at the local hardware store for around $5 per 50-pound bag. Or, if your sandbox is large, you can likely find a bulk supplier that …
أكمل القراءةConventional concrete aggregate consists of sand (fine aggregate) and various sizes and shapes of gravel or stones obtained through rocks that are limited in the environment, so we are discussing about some of the alternatives for aggregate.
أكمل القراءةalternative fine aggregate are developed. In the present study, a comparison of the Compressive strengths of River Sand and M-sand is done with the hundred percent replacement of river sand by M sand. Index Terms — M-Sand, Compressive strength, fine aggregate —————————— —————————— 1 I
أكمل القراءةKeywords: Concrete, Sea sand and Fine aggregate. 1. INTRODUCTION . Sand is a unique raw material for the construction industry at present, but contractors say that they have to spend more allocations for obtaining bulk loads of sand for their construction work. Quarry dust is one of alternative raw material for the construction industry,
أكمل القراءةcost of natural sand used as fine aggregate in concrete increased the cost of construction. In this situation research began for inexpensive and easily available alternative material to natural sand. Some alternatives materials have already been used as …
أكمل القراءةcost of natural sand used as fine aggregate in concrete increased the cost of construction. In this situation research began for inexpensive and easily available alternative material to natural sand. Some alternatives materials have already been used as …
أكمل القراءةalternative fine aggregate are developed. In the present study, a comparison of the Compressive strengths of River Sand and M-sand is done with the hundred percent replacement of river sand by M sand. Index Terms — M-Sand, Compressive strength, fine aggregate —————————— —————————— 1 I
أكمل القراءةconcrete manufacturers to look for suitable alternative fine aggregate. One such alternative is "manufactured sand". Workability strength and durability of concrete with manufactured sand as replacement to natural sand in proportions of 0%, 5%, 10%, 15%, 20% and 25% is studied. The experiments were conducted on M20 concrete grade.
أكمل القراءةOther sand: bottom fly ash, granulated slags are beneficially used as alternative fine aggregates of sand in concrete Cite 11th Nov, 2016 Anne Mary Janarthanan Vel Tech - Technical University You...
أكمل القراءةNov 21, 2016 · Sand Alternatives for Aggregate. In a study released by the African Journal of Environmental Science and Technology, stone powder was pitted against sand as an alternative for fine aggregate. Sand is a naturally occurring material, while stone powder is a byproduct of crushing stone, usually for other projects.
أكمل القراءةTwo sets of mixture with six samples of each for a total of 12 samples were prepared and tested. Findings of the study revealed that the concrete mixture using sawdust is comparable to the compressive strength of concrete mixture using sand as fine aggregate. Thus, the sawdust can be considered as an alternative for sand as fine aggregate.
أكمل القراءةThe findings of the study reveal that the criteria 'Replacement Intensity (RI)' influence the material prioritization. Among the identified seven fine aggregate alternatives, in both the methods, the alternative foundry sand has performed better by 116% more than the natural sand. This proved to be the priority among the aggregates investigated.
أكمل القراءةThe alternative fine aggregates satisfies the requirements as alternatives to river sand. Crushed rock sand, industrial by-products and recycled fine aggregates are used as replacement of river sand. LCA shows reduction in terms of climate change and resource depletion over river sand. Standardization is needed for gainful utilization.
أكمل القراءةCrushed rock sand (CRS), industrial by-products (IBP) and recycled fine aggregates (RFA) are different types of alternative fine aggregates. The economic, sustainability and social benefits increases utilizing into concrete.
أكمل القراءةGranulated blast furnace slag is a waste of steel industry; its use can be best exploited as part replacement of sand in concrete. It can replace sand to the amount of 70 % in concrete mixes. Its Availability is limited, restricted to steel plant area.
أكمل القراءةManufactured sand blended with natural sand in the ratio of 70:30 can be used as fine aggregate in concrete, which shows the better performance than conventional concrete. If the sand is replaced ...
أكمل القراءةAlternative 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 thermal or other processes such as separation, washing, crushing and scrubbing [6].
أكمل القراءةAmong the identified seven fine aggregate alternatives, in both the methods, the alternative foundry sand has performed better by 116% more than the natural sand. This proved to be the priority among the aggregates investigated. The developed approach facilitates decision-makers in selecting the best alternative.
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