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(PDF) Effects on the Properties of Concrete by …

In this present experimental study, various properties of concrete have been studied using quarry dust (robo sand, artificial sand, stone dust) as a replacement of natural fine aggregate and...

Bulking of Sand Test – Experiment Procedure and Importance

Importance of Sand Bulkage Test. If we need 1 m 3 of sand in concrete we need to know the approximate sand bulkage value. Say, for example, sample sand that we are going to use has 30% bulkage of sand then we need to take 30% more sand that is 1.3 times of sand while volume batching in order to get 1 m 3 of sand for concrete.

Robo Sand at Best Price in India

Find here online price details of companies selling Robo Sand. Get info of suppliers, manufacturers, exporters, traders of Robo Sand for buying in India.

Test Results

Depending on the complexity of the tests, it could take several days to complete the tests. You should contact your doctor's office if you have any question about the availability of test results, or you can continue to check your Labcorp Patient™ portal account, as results are posted based on a fixed schedule as indicated above.

Experimental Study on Partial Replacement of Natural …

quarry stone powder (artificial / robo / M-SAND). By using this robot sand with sand in various ratios, you can get the concrete mixture you need. The replacement of natural fine aggregate is done with 20%, 40% and 60% artificial fine aggregate, and the compressive strength of the concrete cube is also known. ...

HIGH PERFORMANCE CONCRETE WITH GGBS AND …

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 …

4.9 The following standard penetration test results

Question: 4.9 The following standard penetration test results were obtained in a uniform silty sand:table[[Depth (m),1,2,3,5],[N60,12,13,18,15]]The groundwater table is at a depth of 2.5 m . Assume a reasonable value for γ, then determine φ' for each test. Finally, determine a single design φ' value for this stratum.

Experimental Study on Partial Replacement of Sand with …

robo sand gives effective results; the cost of robo sand is 30-50% less in market which is good for production of economical concrete. The service of robo sand is also as good enough for as natural sand concrete. [2.3] Thomas Joseph Odero et al. (2016) has carried the experiment by replacing 5%,10% and 25% by volume of sand with sawdust.

Compressive Strength and Ultrasonic Pulse Velocity …

B. ROBO SAND: Robo sand is a waste product obtained by the crushing stone, gravel and slag in crushes. The fineness modulus of Robo sand is 3.62 and is conforming to Zone III as per IS: 383-1970. Robo sand which is used for construction should be passed through the less than 4.75 mm sieves. It is also called M-sand or artificial sand.

An Experimental Investigation on Partial Replacement of …

concrete with readily accessible GGBS and Robo sand. 3. MATERIALS & METHODOLGY 1. Cement We had collected the cement from nearest store and using Ultra techOrdinaryPortland cement 53 grade in this project research. Table – 1: Test results on Cement S.NO. Particulars Test results 1 Specific gravity of cement 3.15 2 Consistency …

Study on Properties of Concrete using Robosand as Fine …

The fine aggregate (natural sand) was replaced with percentages 0% ( for conventional concrete mixture ), 20%, 40%, 60%, 80% and of robosand by weight and tests were conducted on the properties of fresh and hardened concrete. Slump-cone test, Compaction factor test and Vee-Bee Consistometer tests were performed to

MIX DESIGN FOR INCORPORATING FINE AGGREGATE

formation of crystalline structures and the density of the structural element cast. Based on the mechanical and physical test results, a mix design and an empirical formula are arrived at. These formulas are validated through repeated tests. Keywords: Robo Sand, Mix Design, FARM- Fine Aggregate Replacing Material, Empirical Formula, Validation

Bulking Of Sand: Test And Limit As Per IS Code

Bulking of Sand: Test and Limit As Per IS Code 7. Bulking depends on sand particles' size. As the smaller the particle size of sand, the volume of bulking increases. Generally, Medium and coarse sand have lower bulking sand. High bulking result in low quality concrete mix and ultimately reduce the strength of concrete. Bulking of Sand Test ...

(PDF) IRJET- DURABILITY STUDIES ON …

The average percentage weight loss for concrete cubes of grades M20, M30& M40 made with Robo sand as fine River Sand Robo Sand % Decrease weight loss for concrete with Robo Sand 2.39 1.56 …

A Study on Partial Replacement of Coarse Aggregate …

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].

EXPERIMENTAL STUDY ON EFFECTS ON PROPERTIES OF …

Robo Sand, he study the strength of concrete has been evaluated by replacing natural or river sand with Robo sand at various proportions i.e., 0%, 25%, 50%, 75% and for M40 grade of concrete with water cement ratio of 0.38. ... From the test results it has been observed that the Split tensile strength of M20 and M25 grade concrete ...

Robosand Vs. Natural sand: a Trade-Off? – Avisun Properties

'River sand' has been used for concrete mason work, and requires very little water. River-sand or natural-sand has better texture, is smooth and round in shape with extremely low 'silt' and 'clay' content. 'Silt' is super fine material that is not good for construction. 'River sand' contains very less of silt making it an ideal raw material for …

An experimental investigation on strength characteristics by …

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 …

Experimental study on mechanical properties of concrete …

Characteristics Test Results Requiremen ts as per IS 12269-1987 1 Fineness (retained on 90-µm sieve) 6% <10% 2 Normal Consistency 33% -- 3 Initial setting time of cement 50 min's ... Robo Sand is procured from Machine Crushed nearby Quarry and its properties are listed below in Table 6. Table 6 Physical Properties of Robo Sand

Effect on Properties of Concrete with Carbon Black and …

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

5 Best Robot Vacuums of 2024

It aced our hard floor cleaning tests, successfully picking up 99% of the dry oats, sand, baking soda, nuts and screws that we spread out, snagging a spot on our list of the best vacuums for ...

Roomba J9+ Combo robot vacuum and mop review: Full test results …

iRobot Roomba J9+ Combo review: Performance and test results Like the Shark IQ I tested earlier in the year, the Roomba J9+ Combo cleans floors in a tight row pattern and finishes along wall edges.

Comparative Study on performance of concrete with …

Robo Sand is to be higher about 26.48% when compared to natural sand. Further Robo sand concrete resulted higher resistance to chloride attack than Conventional Concrete.

Experimental study on strength of concrete by partial …

test results are compared with the conventional concrete for the strength, weight and cost. The optimum usage of sawdust and robo sand in concrete is found from the analysis. 2.2 Materials Used The materials used for the study is briefly explained below. The source of the materials, the tests carried out for their ...

Study on Strength of Concrete Using Robo Sand as a Partial …

Tests were conducted on cubes and beams to study the strength of concrete made of Robo Sand and the results were compared with the natural sand Concrete. An attempt has also been made to durability studies on Robo Sand when compared with the natural sand concrete. It is found that the compressive, flexural …

AN EXPERIMENTAL STUDY ON STRENGTH …

An experimental study is conducted to find 7 and 28 day Compressive, Split tensile and Flexural tests in M 40 grade concrete made of both Natural sand and Robo sand and the results were compared for drawing a …

An experimental investigation on the properties of …

Robo sand is manufactured sand which is eco-friendly solution that serves as perfect substitute for the fast depleting and excessively mined river sand. Robo sand with size 0- ... Test Results& Graphs The following are the test results of the fresh and hardened concrete. 5.1. Normal Concrete 5.1.1.

Bulking of Sand – Cause, Tests and Importance

Calculations Percentage Bulking of Sand = (Y1-Y)x100/Y Results A graph is plotted with percentage water content along X -axis and percentage bulking along y-axis. From the graph the following results are obtained: …

What are the Advantages and Disadvantages of Robo sand?

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 ...

Replacement of Sand by Robo Sand for using in M30 …

Robo sand was used in tests on cubes, cylinders, and beams to investigate the strength of concrete. The results were compared to Natural Sand Concrete. In the current investigation, Robo sand was used in lieu of various percentages of typical fine aggregate, including 0%, 20%, 40%, 60%, 80%, and . ...