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  • What are the Materials for Replacement of Sand in Concrete

    Jun 08, 2017· In 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

  • Can someone suggest an alternative of sand as a fine

    Manufactured 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.

  • Alternative fine aggregates in production of sustainable

    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. • LCA shows reduction in terms of climate change and resource depletion over river sand. • Standardization is needed for gainful utilization.

  • Alternatives to river sand for construction

    Dec 14, 2013· The sand was used as construction material when cement made its debut as construction principal material. Today researchers world over are in continuous search for the alternatives to river sand. Fine aggregate is one of the important constituents of concrete.

  • Alternative Sand: An Inevitable Resource to River Sand

    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 thermal or other processes such as

  • What is the alternative of sand in concrete? Quora

    Dec 10, 2017· There are several alternative materials such as saw dust, iron dust, ash etc and the resultant concrete are known by different names. We’re surrounded by concrete; it’s in our buildings, our roads, our tunnels, and runways. In fact, we produce aro...

  • Offshore Sand as a Fine Aggregate for Concrete Production

    The study revealed that offshore sand obtained from 2 to 7 km away from the western coast, Sri Lanka soon after dredging, could be used as an alternative to river sand. Keywords : Offshore sand; concrete; fine aggregate; chloride content.

  • What are other alternatives for aggregates in concrete

    1) EPS: Expanded Polystyrene plays a very unique role in concrete. Research has shown that concrete with this material behaves very similarly to light weight concretes containing traditional aggregates. This is believed to be the case because the

  • Alternative fine aggregates in production of sustainable

    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. • LCA shows reduction in terms of climate change and resource depletion over river sand. • Standardization is needed for gainful utilization.

  • Greener alternatives to sand-based concrete production

    Jul 19, 2018· Environment. Concrete production uses a ton of sand and emits a lot of carbon. Here are some greener alternatives. The World. July 19, 2018 · 6:00 PM EDT

  • Experimental Study on Suitability of Sea Sand as Fine

    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.

  • Feasibility of Quarry Dust to Replace River Sand as Fine

    normally used in the crushed form. River sand is the main fine aggregate used in Sri Lanka. Scarcity and restriction on sand mining has increased the price of sand in the recent times and therefore the cost of concrete. As an alternative to river sand, offshore sand and different kinds of artificial aggregates have been introduced from time to

  • Effect of fine aggregate replacement with desert dune sand

    Mortar mixtures were prepared with crushed sand (CS) or river sand (RS) in which the fine aggregates were replaced partially by different percentages of DS of 0, 25, 50, 75 and 100%. The effect of DS on the fresh mortars properties was studied using the mini-slump flow, V-funnel flow time and viscosity measurements tests.

  • Use of sea sand as fine aggregate in concrete making

    Concrete is a mixture of cement, coarse aggregates, fine aggregates or sand and water. The approximate ratios of these components are as below: Based on the ratios and the anticipated cement consumption in the country, the expected requirement of sand

  • EVALUATION OF THE POTENTIAL OF SEA SAND AS AN ALTERNATIVE

    Mar 25, 2015· alternative fine aggregates, con sidering variables . as given above, to be used in the concrete . Globally, concrete industry is using desalted sea sand as fine aggregate. The desalting

  • Concrete aggregate alternatives Appropedia: The

    Nov 14, 2020· Because soil type is hardly consistent throughout the world, fine aggregate or rock can be hard to acquire. Large amounts of steel can be added to concrete in areas with high seismic activity but this does not change the fact that concrete is a brittle material. Alternatives to the Traditional Aggregate [edit edit source]

  • Crushed rock sand An economical and ecological

    Sep 01, 2016· 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.

  • (PDF) SEA SAND AS FINE AGGREGATE FOR CONCRETE PRODUCTION

    Dong-Oh Cho (2006 Korea), [2] aggregate and crushed stone with 20 mm maximum size was used as coarse aggregate. The properties of fine aggregates and coarse aggregates were found to conform to IS: 383- 1970 with specific gravity of sand as 2.63 and coarse aggregate as 2.77.Unit weight of sand and coarse aggregate was 1890 and 1650 kg/m3

  • EXPERIMENTAL STUDY ON CONCRETE USING SEA SAND

    Keywords: 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,

  • Suitability of Soil Washed Sand as Fine Aggregates to

    This paper presents a study on suitability of replacing river sand with soil washed sand as fine aggregate in concrete. The study was based on a comparison of concrete performance produced from river sand and soil washed sand obtained from four locations in Sri Lanka; Homagama, Rathnapura, Anuradhapura and Bandarawela. Several standard tests including Sieve analysis, Slump test and

  • Effect of Plastic Waste as Partial Replacement of Fine

    The construction industry in India faced a practical slowdown situation. Studies then showed that of the entire construction industry in India 78% of the construction projects were based on illegal sand. The construction industry was now faced with the issue of finding viable and practical alternatives to river sand as fine aggregates.

  • Fine aggregate its impurities and its gradation,limits

    Fine Aggregate. Fine aggregate is an essential ingredient in the making of concrete, and this is the mainstay of the building industry. Hence it must be procured with all care and vigilance. Here are a few points to remember while you purchase sand for buildings, Firstly ensure the sand is free from clay lumps, silt and other organic impurities.