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ROBO Sand has balanced physical and chemical properties that can withstand any aggressive environmental and climatic conditions as it has enhanced durability, greater …
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In this present experimental study natural sand is replaced with manufactured sand or Robo Sand. The 28-days compressive strength and Durability of M30 grade concrete …
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Quartz is a mineral composed of silicon and oxygen, with a chemical composition of SiO 2. It is the most abundant mineral in Earth's crust and is resistant to both chemical and physical weathering. When rocks weather away, the residual material usually contains quartz. This is why the sand at most of the world's beaches is quartz.
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The chemical compositions of desert sands at the 7 locations were listed in Table 1.SiO 2 was absolutely the dominant composition (average of 80.69 mass%), the rests were 19.31 mass% of Al 2 O 3, Fe 2 O 3, MgO, CaO, K 2 O, Na 2 O. and TiO 2.The grain size had a main distribution range from 80.0 to 800.0 µm (Fig. 2), the average …
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Chemical weathering is much more important sand-producing factor overall. It operates most efficiently in humid and hot climate. Physical weathering dominates in cold and/or dry areas. Weathering of bedrock which produces sand usually takes place in soil. Soil covers bedrock as a thin layer, providing moisture for the disintegration process of ...
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with Replacement of Local River Sand by Robo, Marble and Ennore Sand Dr. K. Chandrasekhar Reddy, ... sand reacts with products of hydration the composition of concrete changes and it may become vulnerable for attacks ... Table 4 Physical and Chemical Properties of Ennore Sand S.No. Property Value 1 Colour Grayish White 2 …
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Heavy mineral sand from Sri Lanka which contains lots of different minerals. Width of view 20 mm. Sand is a very versatile mixture. We have much more than mineral grains in its composition. Third large and versatile group are lithic fragments. They are simply stones that have the size of sand grains.
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Mix Design: The concrete mix is designed as per IS 10262 – 1982, IS 456-2000 and SP 23 for the conventional concrete and finally 0 to 30% river sand has been replaced by …
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usage of Robo Sand has been increasing.in the construction sector . The Robo Sand was procured from rock crushing unit, Kokapet, Telangana. ... Table 2: Chemical composition of Sodium Silicate. S.No. Characteristic Value 1 Baume 38 Be±1 Be 2 Specific gravity 1.35 3 Na2 O 8.57%± 0.5% 4 SiO2 25.88%± 1.0%
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ROBO sand: ROBO sand or crusher dust obtained from l ocal granite crushers was used in concrete to cast the cubes and cylinders. The bulk density of ROB O sand or crusher dust is 1768 kg/m 3 .
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1.2 ROBO SAND The term "robo sand" refers to artificial sand that is created by crushing real granite. A crushed granite aggregate created by crushing natural granite stone is …
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Development of the Chemical Composition of Sand The past years have brought an increasing interest in chemical composition as a possible in dicator of the tectonic setting of sandstones (see Pettijohn et al. 1987, p. 58 for references). Sand stones and modern sands from different realms of plate tectonics like island arcs, both oceanic
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Comparative Study on performance of concrete with Natural sand and Robo sand P. Bhanu Prakash Reddy #1, V.Sowjanya Vani *2, N.Sunil #3 #1 PG Student, Department of Civil Engineering, GITAM University, Visakhapatnam, Andhra Pradesh, India bhanu.bhanu.prakash16@gmail *2Assistant Professor, Department of Civil …
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The sand acquired over this procedure is more advanced by eliminating fine particles and impurities finished sieving and washing.. The bulk density as well as specific gravity of together are similar as well as the chemical features and strength of M-sand are comparable to that of river sand as per IS-383. M-sand has a silt content of about 0.2% …
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2.1.3. ROBO Sand: ROBO Sand is collected from locally available crushing unit. It was initially dry in condition when collected and was sieved by IS 4.75 mm. It has shape of particles as Cubical Particle. The specific gravity of ROBO Sand is 2.68, Fineness modulus is 3.34. Grading Confirming to Zone-II. 2.1.4. Coarse Aggregate:
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There aren't many disadvantages of Robo sand unless the manufacturer is not much into quality control. They may be : There is a possibility of hard soil or hard clay strata crushed along with the desired rock. Often murrum boulder is also present. It gets crushed into finer particles and disturbs the mix design, workability and setting times ...
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Advantages of manufactured sand are as follows; Reducing defects in concrete like segregation, bleeding and honeycomb structure formation.; Setting time of concrete is comparatively fast as compared to another type of concrete where we use natural sand; Compressive strength and flexural strength of concrete is very high as …
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The concrete is widely used in the construction industry. River sand is commonly used construction material. Natural weathering of rocks results in the formation of river sand, over millions of years. Robo Sand (R.S) which is eco-pleasant serves as a partially substitute material for the depleting river sand.
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Experimental Study on Partial Replacement of Natural Sand with Robo Sand Panasa Anil1, G Aruna2, M Saritha3 ... filtered sand, physical and fine chemical properties affect the length, functionality and strength of concrete. It is the main component of concrete and cement. River sand and pit sand are generally most commonly used ...
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Native rock salt is sold for human consumption, but the chemical composition is not constant and there may be health risks from some of the impurities, which can be up to 15% of the mass of the product. Another common source of table salt is evaporated sea water or sea salt. Sea salt consists mainly of sodium chloride, with trace …
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Results and Discussion The chemical composition of the as received Silica Sand, Fe-Cr Slag and GBF slag was shown in table 1. The result evident that major phase in silica sand was SiO2; whereas in case of Fe-Cr slag this happens to be SiO2, Al2O3,MgO, Cr2O3,CaO and FeO. ... MgO; with a minor amounts of FeO, MnO etc. …
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The primary chemical component of sand is silica, followed by smaller amounts of alumina, iron oxide, and calcium oxide.. The chemical composition of sand is primarily SiO 2, or silica.Silica, by definition, is a component of soil, rock, and other minerals. The chemical composition of sand is required in order to determine its suitability of sand for various …
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ASTM C618 classified FA into two major classes, namely class 'C' and class 'F', based on chemical composition and type of coal burned. ... Malagavelli V., Rao P. High performance concrete with GGBS and ROBO sand. Int. J. Eng. Sci. Technol. 2010; 2:5107–5113. [Google Scholar] 49.
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Out of the total composition of concrete, fine aggregate consumes 20 to 30 % of volume. With a few local exceptions, it is expected ROBO Sand to be a global practice. ... ROBO Sand arecrusher dust which collected from local. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 ...
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Since the size of robo sand is very less than that of natural sand, hence during the mixing, the workability gets reduced. ... The XRF and FTIR test were done to …
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the cement is its having the chemical composition is similar to the cement clinker even it requires more water due to its fineness. Another thing is it releases the less amount of …
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Table shows the chemical composition of GGBS.With the usage of GGBS in concrete, the hydrated paste has large number of small capillary ... Robo Sand 0 25 50 75 100 Cement with GGBS 40 50 60 40 50 60 40 50 60 40 50 60 40 50 60 Test Procedure 55 The concrete cubes of size 150 mm, cylinders of size 300 mm height and 150 mm …
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The chemical composition analysis of Robo sand was found by X-Ray Fluorescence (XRF) shown in Table 5. 2.2 Fine Aggregate The material which passes through 4.75 mm sieve is termed as fine aggregate. In this research two materials were used as fine aggregate, they are (1) River sand, (2) Robo sand. ...
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Chemical Composition of sandstone usually quartz framework grains are the dominant mineral in clastic sedimentary rocks.Because of they have exceptional physical properties such as hardness and chemical stability.Physcial properties of these quartz grains survive multiple recycling events and also allowing the grains to display …
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Robo sand. R.S is an alternative of river sand in construction. R.S is formed after tough stone stepping-stone by distressing. Robo sand is recognized as construction material in western countries and the usage of R.S has risen in some states in India. • Specific Gravity of R.S = 2.34 • Bulk density of R.S = 10% •
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