Venu Malagavelli et. al. / International Journal of Engineering Science and Technology Vol. 2(10), 2010, 5107-5113 Fig.4. Compressive strength of concrete at the age of 28 days
Properties of robo sand used are as follows, Specific Gravity of Robo Sand = 2.84 As per IS 383-1970 the Robo Sand is classified under grading zone II. 3.6. Ground Granulated Blast Furnace Slag (GGBS) GGBS us a by-product from the blast-furnaces used to make iron. These operate at a temperature of about 1,500 degrees
GGBS and ROBO sand in different proportions. Increase in compressive strength after 28 days was observed with 15% GGBS along with 20% ROBO sand. Similar trend was observed in the case of split tensile strength and flexural strength test. ... ical properties of materials and an appropriate design. Hence, the green buildings design should start ...
Venu Malagavelli et. al. / International Journal of Engineering Science and Technology Vol. 2(10), 2010, 5107-5113 This paper presents the study of compressive strength and split tensile strength of M30 conventional concrete by replacing the 0 to 30% (5% increment) of sand with ROBO sand and 40 to 60% of cement with GGBS.
Based on fresh properties of SCC, fresh state properties of SCC like flow ability and passing ability in accordance IS10262-2009 guidelines were found with different percentage replacement of river sand by M-sand and obtained 20, 30 percent replacement as optimum. It is observed that the increase in percentage
Robosand is one among such materials to replace river sand, which can be used as an alternative fine aggregate in mortars and concrete. In this present research work, M20 …
Advantages of manufactured sand : Manufactured sand has a higher fineness modulus index as compared to natural sand; It has better abrasion resistance because manufactured sand is free from silt and …
The split tensile strength of concrete specimens made with 50% replacement of river sand by Robo sand gives higher strength of 7%to 9% and with replacement gives a …
Robo Sand (RB), derived from crushed rocks, and Glass Powder (GP), a byproduct of the glass manufacturing process, are two such alternatives that have gained attention due to their potential to ...
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.
Robo sand Robo Sand is derived by crushing stones in a quarry to obtain the desired granular material. The sand used in concrete must have a proper gradation of 150 microns to 4.75 mm. The fineness modulus of Robo sand is 2.52. The uniformity coefficient is less than 6and its specific gravity is 2.66. Pic:1Robo sand Pic:2 carbon black
Robo Silicon, for the first time in India, introduced "Manufactured Sand" as a viable, cost-effective and an eco-friendly alternative to the precious and fast depleting natural resource -river sand. Robo Silicon is the first …
The effect of concrete with partial replacement of River sand with Robo sand and determining the properties of normal strength concrete with water cement ratio of 0.48,0.43 for 7 and 28day's compressive, split tensile and …
In the present work, natural coarse aggregate was replaced with recycled coarse aggregate and river sand was replaced with ROBO Sand in different …
This paper reviews in studying the properties of concrete using quarry dust (robo sand) as a partial replacement of natural fine aggregate and carbon black as a …
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% •
Fig. 2 Robo Sand Table 4: Physical Properties of Robo Sand 3.1 General Table 5: Chemical Composition of Robo sand (XRF) 6 M20 2.3 Coarse Aggregate Locally available coarse aggregate having the maximum size of 20 mm was used in this work. The aggregate were washed to remove dust and dirt and were dried to surface dry condition.
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 known as robo sand. Robo Sand is the ideal replacement for river sand. One of the primary components used in
Fineness Modulus 7.31 Table - 2 Properties of Fine aggregate (River sand) S.NO PROPERTY VALUE 1 Grading of sand Zone II as per IS383 2 Specific gravity 2.61 Bulk density i) Loose state 1608.65 kg/m3 3 ii) Compacted state 1708.06 kg/m3 4 Fineness modulus 2.48 5 Silt content 1% 6 Surface moisture 0.7% Table - 3 Properties of cement S.
This study presents the various properties of concrete with sand and its alternatives such as physical and mechanical characteristics of concrete. it is concluded that the highest substitute rate of sand replacement in concrete can help to resolve a variety of disposal-related difficulties, save the natural resources used in aggregate mining ...
1.4 Advantages of ROBO Sand: • Greater Durability: ROBO Sand has balanced physical and chemical properties that can withstand any aggressive environmental and climatic conditions as it has enhanced durability, greater strength and overall economy. Usage of ROBO Sand can overcome the
As a substitute to river sand, Robo sand has been used. In this present experimental study a comparative study has been carried out to check the usability of Robo sand in place of natural sand.
2. International Journal of Trend in Scientific Research and Development (IJTSRD) @ eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD23944 | Volume – 3 | Issue – 4 | May-Jun 2019 Page: 850 IV. Test RESULT 1. Workability The effect of Metakaolin and ROBO sand on fresh property concrete on …
Robo Sand's one of a kind properties - desk area molecule shape, steady degree and zero debasements - are the reasons that basic advisors and solid technologists like to utilize these products.
KEYWORDS: Concrete, Natural sand, Alternative materials, Quarry dust, Foundry sand, Mechanical properties. I. I.INTRODUCTION Concrete is that pourable mix of cement, water, sand, and gravel that hardens into a super-strong building material. Aggregates are the important constituents in the concrete composite that help in
sand by Robo sand gives higher strength of 12% to 15% and with replacement gives a higher strength of 3% to 4% as compared to reference mix. By replacement of natural sand with Robo sand, the cost of the construction can be reduced to10% per cum. Higher results then the normal conventional concrete. [3].
Sea sand and robo sand are the alternate material for exhausting river sand. Sea sand is very cheap in cost and easily available in coastal area but it contains alkali matter and impurities which are not good in concreting. This sea sand can get washed and used for many constructions. Robo sand is the one of the alternate material for river sand.
In the present investigation workability, strength and durability of concrete with manufactured sand as replacement to natural sand in proportions of 0%, 20%, 40%, 60% and is studied.