SEIVE ANALYSIS OF FINE AGGREGATE
| SEIVE SIZE | WEIGHT RETAINED (gm) | % WEIGHT RETAINED | CUMMULATIVE % WEIGHT RETAINED | % PASSING |
| 4.75mm | 0.00 | 0.00 | 0.00 | 100.00 |
| 2.36mm | 70.0 | 7.0 | 7.0 | 93.00 |
| 1.18 mm | 275.00 | 27.50 | 34.50 | 65.50 |
| 600 mic | 160.00 | 16.00 | 50.00 | 49.50 |
| 300 mic | 265.00 | 26.50 | 77.00 | 23.00 |
| 150 mic | 160.00 | 16.00 | 93.00 | 7.00 |
| Residue | 70.00 | 7.00 | 100.00 | 0.00 |
Weight of Sample taken = 1000gms
SEIVE ANALYSIS OF COARSE AGGREGATE
| Seive Size | Weight Retained (gm) | % Weight Retained | Cumulative % Weight Retained | % Passing |
| 25 mm | 0.00 | 0.00 | 0.00 | 100.00 |
| 20mm | 0.00 | 0.00 | 0.00 | 100.00 |
| 10 mm | 1195 | 59.75 | 59.75 | 40.25 |
| 4,75 mm | 620 | 31.00 | 90.75 | 9.25 |
This sand is manufactured according to the specifications of ISI2116-1980-2.0 and IS: 486:2000 and IS: 383:1970.
The particle shape is semi rounded or cubical and not flaky or elongated.
The percentage of dust is strictly controlled
| Manufactured Sand [ Brand Name : Chetak |
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| Contains no organic Impurities, hence it gives increased strength of Concrete with same cement content. |
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| Gradation of sand is controlled in the manufacturing process; hence mix design can be accurately used due to consistent gradation. |
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| No wastage since Sand is already sieved in the required size (below 4.75 mm). |
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| Consistency in supply as well as stability in prices helps in controlling the project cost. |
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| Does not harm the environment in any way |
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DETAILS OF FINAL MIX PROPOSRTION
| Grade of Mix | M20 |
| Recommended Mix Proportion by weight [ Cement: Fine Aggregate: Coarse Aggregate] |
1:1.86:3.54 |
| Ratio of Coarse Aggregate | 3:2 |
| Cement Content in Kg/m3 | 330 |
| Water - Cement Ratio | 0.58 |
| Slump of Mix in mm | ~50 |
| Average 7 days Cube Compressive Strength in N/mm2 | 18.50 |
| Expected 28 Days Cube Compressive Strength in N/mm2 | 27.75 |
| Material Required for 50 Kg of Cement (Proportion by weight)
20mm Coarse Aggregate in Kg 10 mm Coarse Aggregate in Kg Fine Aggregate in Kg Water in Kg |
106.20 70.80 93.00 29.00 |
NOTE: The test and Mix design were conducted strictly as per procedure given in current Indian Standard Specification.
Any Changes in material characteristics as well as in mixing, batching, and curing method are likely to alter the mix properties.
Production and control of concrete should be strictly in accordance with Indian Standard Code of practice for plain and reinforced concrete.
| Quality Assurance | |
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| Cube testing for every 5000 MT Production |
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| Strict Sizing control by controlling the machine's parameters |
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| Field trials are taken at customers site once a Month or as requested as a part of after sales service |
Samples of the sand will be send with in 7 to 10 business days