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STANDARD SPECIFICATIONS
Fine Aggregate for Cement Concrete

Standard Specifications for Aggregates

Fine Aggregate for Cement Concrete

Reference ASTM C 33-13

ASTM C 33-13 specification covers the requirements for grading and quality of fine and coarse aggregate (other than lightweight or heavyweight aggregate) for use in concrete. Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof. Grading requirements of fine aggregates shall be as given in the adjoining input table.

This TransCalc tool can be used to calculate and plot the Fineness Modulus of upto three samples. The input data can also be saved in the form of a pdf report. The plots are interactive and can be zoomed in or out and hovered over for additional data display. The plot can be saved by using the toolbars located on the top right of each plot. Please make use of the help texts provided in each input cell for further guidance on the usage of this tool.

The fine aggregate shall have not more than 45 % passing any sieve and retained on the next consecutive sieve. Fineness modulus shall be not less than 2.3 nor more than 3.1.
Fineness Modulus - a factor obtained by adding the percentages of material in the sample that is coarser than each of the following sieves (cumulative percentages retained), and dividing the sum by 100: 150- μm (No. 100), 300-μm (No. 50), 600-μm (No. 30), 1.18-mm (No. 16), 2.36-mm (No. 8), 4.75-mm (No. 4), 9.5-mm (3⁄8-in.), 19.0-mm (3⁄4-in.), 37.5-mm (1½ in.), 75-mm (3-in.), 150-mm (6-in.).
For continuing shipments of fine aggregate from a given source, the fineness modulus shall not vary more than 0.20 from the base fineness modulus. The base fineness modulus shall be that value that is typical of the source.
The limit for material finer than the 75-μm (No. 200) sieve shall be 5.0 % maximum for concrete not subject to abrasion. For manufactured fine aggregate, if the material finer than the 75-μm (No. 200) sieve consists of dust of fracture, essentially free of clay or shale, the limit for material finer than the 75-μm (No. 200) sieve shall be 5.0 % maximum for concrete subject to abrasion, and 7.0 % maximum for concrete not subject to abrasion.

Deleterious Substances

The amount of deleterious substances in fine aggregates shall not exceed the limits given in table below.

Item Mass percent of total sample, max
Clay lumps and friable particles 3.0
Coal and lignite (where surface appearance of concrete is of importance) 0.5
Coal and lignite (all other concrete) 1.0

Organic Impurities:

Fine aggregate shall be free of injurious amounts of organic impurities. Aggregates subjected to the test for organic impurities and producing a color darker than the standard shall be rejected.
Use of a fine aggregate failing in the organic impurities test is not prohibited, provided that, when tested for the effect of organic impurities on strength of mortar, the relative strength at 7 days, calculated in accordance with ASTM Test Method C 87, is not less than 95 %.

Soundness Requirements:

Fine aggregate subjected to five cycles of the soundness test shall have a weighted average loss not greater than 10 percent when sodium sulfate is used or 15 % when magnesium sulfate is used.

Fine aggregate failing to meet the requirements of soundness may be accepted, under the condition that, concrete of comparable properties, made from similar aggregate from the same source, has given satisfactory service when exposed to weathering similar to that to be encountered.

Fine aggregate not having a demonstrable service record and failing to meet the soundness requirements may be accepted, provided it gives satisfactory results in concrete subjected to freezing and thawing tests as per ASTM C 666.


Input - Project & Sample Details

Please enter the Project Details to appear on the generated pdf report.

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Please enter brief remarks to appear on the generated pdf report.

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Please enter the trace name to appear on the legend section of the PSD plot.


Fine Aggregate: Particle Size Grading Input Table

Sieve Size, mm Perc. Passing
Sample-A 		Perc. Passing
Sample-B 		Perc. Passing
Sample-C 		Specification
Upper Limit (ASTM C 33) 		Specification
Lower Limit (ASTM C 33)
9.5 100 100
4.75 100 95
2.36 100 80
1.18 85 50
0.600 60 25
0.300 30 5
0.150 10 0
0.075 3 0


FINENESS MODULUS

Fineness Modulus - Sample A:

Fineness Modulus - Sample B:

Fineness Modulus - Sample C:

PARTICLE SIZE GRADING COMPARISON - CHART


TRANSCALC TOOLS

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Sieve Analysis of Fine and Coarse Aggregates

Particle Size Grading of Soils and Aggregates

Materials Finer Than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing

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