Flakiness And Elongation Index Test Procedure Pdf

flakiness and elongation index test procedure pdf

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Flaky and elongation particles are considered undesirable as they cause weakness of the pavement. Rounded aggregates are preferred in cement concrete pavements as the workability of concrete improves. Regular shapes of particles are desirable for granular base course due to increased stability desired from better interlocking.

Exp 1 Flakiness and Elongation Index

Objective Particle shape and surface texture influence the properties of freshly mixed concrete more than the properties of hardened concrete. Rough-textured, angular, and elongated particles require more water to produce workable concrete than smooth, rounded compact aggregate. Consequently, the cement content must also be increased to maintain the water-cement ratio. Sieves required are 63, 50, 40, Thickness Gauge have width equal to 0. Length Gauge have length equal to 1. Reaffirmed- Dec

Determination of the Flakiness and the Elongation Index for the Given Aggregate Sample.

Particle shape and surface texture influence the properties of freshly mixed concrete more than the properties of hardened concrete. Rough-textured, angular, and elongated particles require more water to produce workable concrete than smooth, rounded compact aggregate. Consequently, the cement content must also be increased to maintain the water-cement ratio. Sieves required are 63, 50, 40, Length Gauge have length equal to 1.

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FLAKINESS AND ELONGATION INDEX OF AGGREGATE. 1. Objective Reference. IS (Part 1) Methods of Test for Aggregates of Concrete- Particle Size and Shape. Reaffirmed-. Dec 4. Procedure Download. Download PDF.


Flakiness Index Test for Aggregates

This test is applicable to aggregates having size larger than 6. To calculate the flakiness index of the given sample of aggregates, the weight of each fraction of aggregates passing and retaining on the specified set of sieves is noted first. The pieces of aggregates are made to pass through the slot of specified thickness of gauge and then they are weighed. Then the flakiness index is calculated as the total weight of material passed through various thickness gauges, expressed as a percentage of total weight of the sample gauged.

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Flakiness and Elongation Index of Aggregate

FLAKINESS & ELONGATION INDEX CALIBRATION PROCEDURE.pdf

Length Gauge have length equal to 1. Reaffirmed- Dec 4. A quantity of aggregate shall be taken sufficient to provide the minimum number of Processor flakiness index coarse aggregate periyarcentre what is the acceptance criteria for flakiness index of coarseat is the acceptance criteria for flakiness index of coarse aggregateet price use of quarry powder at kerala residentialpainterscoza.

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3: Thickness Gauge- For Flakiness Index. Shaker IS (Part 1) Methods of Test for Aggregates of Concrete- Particle Size and Shape. 4. procedure.


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1 COMMENTS

Brandi M.

REPLY

This test is used to determine the particle shape of the aggregate and each particle shape being preferred under specific conditions.

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