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The results of the compressive strength test are shown in Table No.- 3.8.2.A) From the graph shown in the Fig.5..1., 100 % replacement of fine aggregate (natural sand with robo sand)has been observed as an optimal strength than other proportions at 7and 28 days Graph 4.1 showing Compressive Strength of two types of concrete 4.2 Split tensile ...

More9.4 Compressive strength Co mpressive strength of concrete Out of many test applied to the concrete, this is the utmost important which gives an idea about all the characteristics of concrete. ... As the w/c ratio is more for Robo sand concrete, the sand strength N/ mm2 wi th reference mi x Robo sand absorb more water than the Natural sand. The ...

More2018-3-26 With Simultaneous Addition Of Percentages Of River Sand And Robo Sand In The Concrete. From The Experimental Results It Is Found That The Compressive Strength And Permeability Is Satisfactory At Adding Of 5% Robo Sand As A Fine Aggregate And Combination Of 80% S1 And 20% S2 As Coarse Aggregate In The Pervious Concrete.

MoreThis paper presents the study of compressive strength and split tensile streng th of M 30 conventional concrete by. replacing the 0 to 30% (5% in crement) of sand with ROBO sand

More2020-8-16 Keywords: concrete, metakaolin, robo sand, Compressive Strength, Split Tensile strength, Flexural strength INTRODUCTION Concrete is a composite material which is predominantly used all over the world. It is obtained by mixing cementing materials, aggregates and water in required quantities. The word "concrete" is originates from the Latin verb ...

MoreCompressive Strength in N/mm 2 % of ROBO sand 0% of admixture 1% of admixture 1.5% of admixture 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 0 5 10 15 20 25 30 Split Tensile Strength in N/mm 2 % of ROBO ...

MoreA GREEN REVOLUTION FOR FUTURE CONSTRUCTION. 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 company to brand its sand as “ROBOSAND TM ”.It is manufactured just the way nature has done for over a million years.

More700k+ research projects; Join for free. ... "Study on Strength of Concrete Using Robo Sand as a Partial Replacement of Fine Aggregate" Int. Journal of Engineering Research and Applications, 2248 ...

More2009-2-23 shear stress is the shear strength of the soil for the particular value of the normal force N or normal stress (N/A) applied to the soil, where A is the cross sectional area of the soil sample. Fig. 8.8 shows that a dense sand has a greater shear strength than a loose sand and this strength is reached at a smaller value of the displacement.

More2009-1-8 UNIAXIAL COMPRESSIVE STRENGTH C o (x 1000 psi) 0 50 100 150 SPECIMEN LENGTH L (in.) VARIATION OF COMPRESSIVE STRENGTH WITH SIZE C o = 35 x L-0.14 In this plot of the size effect on strength, a power function was used to best-fit the experimental data. NOTE, however, that beyond L=36 in. the size effect ceases to be of much consequence.

MoreThe results of the compressive strength test are shown in Table No.- 3.8.2.A) From the graph shown in the Fig.5..1., 100 % replacement of fine aggregate (natural sand with robo sand)has been observed as an optimal strength than other proportions at 7and 28 days Graph 4.1 showing Compressive Strength of two types of concrete 4.2 Split tensile ...

More9.4 Compressive strength Co mpressive strength of concrete Out of many test applied to the concrete, this is the utmost important which gives an idea about all the characteristics of concrete. ... As the w/c ratio is more for Robo sand concrete, the sand strength N/ mm2 wi th reference mi x Robo sand absorb more water than the Natural sand. The ...

More2021-8-5 The effect of partial replacement of Robo sand, on the compressive strength of M25 grade of concrete (1:1.4:2.88), with water cement ratio 0.44 was carried out by [14]. The compressive strength of cement concrete with 20%, 40% and 60% replacement of Robo sand, gives higher strength as compared with 0% Robo sand.

MoreCompressive Strength in N/mm 2 % of ROBO sand 0% of admixture 1% of admixture 1.5% of admixture 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 0 5 10 15 20 25 30 Split Tensile Strength in N/mm 2 % of ROBO ...

Morereplacing 30% sand with ROBO sand with 1.5% admixture. % of increase in compressive strength of concrete was 11.06 and 17.6% at the age of 7 and 28 days by replacing 50% of cement with GGBS and 25% of sand with ROBO sand. M.C.Nataraja (2013) investigates, shows that the compressive strength of cement mortar increases as the replacement

More700k+ research projects; Join for free. ... "Study on Strength of Concrete Using Robo Sand as a Partial Replacement of Fine Aggregate" Int. Journal of Engineering Research and Applications, 2248 ...

MoreWith regard to compressive strength, 38% of the concrete cubes made from sand with varying sand impurities failed to meet the design strength of 25 Mpa at the age of 28 days. A combined regression equation of with R2 = 0.444 was generated predicting compressive strength varying levels of silt and clay impurities (SCI), and organic impurities ...

MoreThis paper proposes a prediction of the compressive strength of concrete with manufactured sand (MS-concrete) based on an ensemble classification and regression tree (En_CART) method. A data set containing 1,350 original measured strengths of 328 concrete mixtures from actual engineering projects were used for training and testing.

More2019-6-18 Much of the research on manufactured sand use in concrete has been conducted by the aggregate industry with conclusions based primarily on compressive strength. There is a general lack of information on frost durability, salt scaling resistance and permeability of concrete produced with manufactured sands, or on the effects of the higher

More2017-2-16 by volume of cement and its effects on compressive strength, split tensile strength, workability and flexural strength are determined. It is found that the compressive, flexural and split tensile strengths of concrete increase initially as the replacement ... the utilization of river sand as fine aggregate leads to exploitation of natural ...

MoreWith regard to compressive strength, 38% of the concrete cubes made from sand with varying sand impurities failed to meet the design strength of 25 Mpa at the age of 28 days. A combined regression equation of with R2 = 0.444 was generated predicting compressive strength varying levels of silt and clay impurities (SCI), and organic impurities ...

MoreThis paper proposes a prediction of the compressive strength of concrete with manufactured sand (MS-concrete) based on an ensemble classification and regression tree (En_CART) method. A data set containing 1,350 original measured strengths of 328 concrete mixtures from actual engineering projects were used for training and testing.

More2019-6-18 Much of the research on manufactured sand use in concrete has been conducted by the aggregate industry with conclusions based primarily on compressive strength. There is a general lack of information on frost durability, salt scaling resistance and permeability of concrete produced with manufactured sands, or on the effects of the higher

More5. GREEN SAND Eco friendly product. 6. Ever available MATERIALS USED : Fine aggregate Coarse aggregate Robo sand Cement Project procedure : 1) Casting cubes by replacing robo sand with fine aggregate in 10,20,30 percentages respectively. 2) Testing the compressive strength of cubes by curing them for 7,21,28 days..get price

More2019-3-26 The SCSBs of 10% addition of sand proved to be the strongest with compressive strength of 2 Mpa. The study concluded that 10% blend of sand could be adopted in block manufacturing for sustainable low-cost housing construction. Having known the strength of these blocks, the users can go ahead and use them in low cost housing construction projects.

More2016-9-9 compressive strength were 57.5%, 68.1%, 83.7%,and 87.3% respectively. The results of the study indicate that both the density and compressive strength of concrete decreased as the percentage replacement increased but replacement of sand by sawdust produced a

More2014-5-16 Sedimentary Rocks, United Arab Emirates, Unconfined Compressive Strength, Point Load Strength Index, Regression Analysis 1. Introduction A closer look at the development projects and construction boom that occurred in the last decade in the United Arab Emirates (UAE) gives thoughtful considerations about the construction of such major projects.

More2019-10-22 The actual z-scores show there are only 2 compressive strength results lower than the characteristic strength for this particular data set. 2 Figure 2. Q-Q plot of 20N 28 day strength. Figure 3 shows the typically seen Abrams plot of the concrete 28 day compressive strength vs water/cement ratio and 7/28 day ratio for the data under study.

More2017-2-16 by volume of cement and its effects on compressive strength, split tensile strength, workability and flexural strength are determined. It is found that the compressive, flexural and split tensile strengths of concrete increase initially as the replacement ... the utilization of river sand as fine aggregate leads to exploitation of natural ...

More2018-2-1 The sand shall consist of natural sand, crushed stone sand or crushed gravel sand or a combina- tion of any of these. The sand shall be hard, durable, clean and free from adherent coatings and organic matter and shall not contain clay, silt

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