fineness modulus


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fineness modulus

[′fīn·nəs ′mäj·ə·ləs]
(engineering)
A number denoting the fineness of a fine aggregate or other fine material such as sand or paint.

fineness modulus

A measure of the fineness of an aggregate; a factor obtained by adding the total percentages of an aggregate sample retained on each of the following sieves and dividing the sum by 100: No. 100 (150 µm), No. 50 (300 µm), No. 30 (600 µm), No. 16 (1.18 mm), No. 8 (2.36 mm), No. 4 (4.75 mm), 3/8 inch (9.5 mm), 3/4 inch (19.0 mm), 1½ inch (38.1 mm).
References in periodicals archive ?
From the gradation curve and size distribution, fineness modulus (FM) of IFS aggregate was found to be 7.19.
A blend of fine aggregate (70% Qibla Bandi and 30% of Chenab river sand) having fineness modulus of 2.49 and Specific gravity of 2.68 was introduced in concrete mix design (Table1-B).
Copper slag in granular form with fineness modulus of 3.22 and specific gravity of 3.63
As per ACI 211.4R-93 [30], a mixture of concrete has been recommended to use the fine aggregate with fineness modulus values from 2.4 to 3.2.
Test category Property under evaluation Loose Bulk density and Compacted void ratio Void ratio Oven-dry Specific gravity Saturated-surface-dry and absorption Apparent Aggregates Absorption Shape (RCA and NCA) Angularity number Shape, size, and Texture texture Particle-size distribution Fineness modulus Nominal maximum size Toughness and abrasion L.
The researchers found that all residual foundry sands, when used in concrete and concrete blocks in amounts not exceeding the fineness modulus limits of the fine aggregate addition, give acceptable compressive strengths.
The fineness modulus of fine aggregate was observed to be 3.05 with a specific gravity
And the fine aggregate used was river sand with a fineness modulus of 2.8.
The fine aggregate used was provided from local river with a fineness modulus of 2.7.