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Get PriceAggregate crushing value is a numerical index of the strength of the aggregate and it is used in construction of roads and pavements Crushing value of aggregates indicates its strength Lower crushing value is recommended for roads and pavements as it indicates a lower crushed fraction under load and would give a longer service life and a more economical performance
Brand Name: Fote Machinery
Application: Ore concentrate/separator plant
Main Equipment: Jaw crusher, impact crusher, hammer crusher, vibrating screen, classifier, ball mill, etc.
Power: 0.72–2.2kw
Screen Area: 4.5–8.1 m2
Processing Ability: 15–48 t/h
Feeding Size: 65-300mm
Discharging Size: 3-60mm
Production Capacity: 12-1000TPH
Rotation Speed: 0.1–5 r/min
Production Capacity: 21-155TPH
Product Specification: φ1.83×7～φ4.6×14m
Feeding Size: ≤25-≤30mm
Discharging Size: 0.125- 0.044mm
Production Capacity: 2-176TPH
Outer Cylinder Length: 6-8.5m
Production Capacity: 20-99TPH
Processible Materials: Mineral ores, sand, ore powder, metal powder, gypsum powder, clay, coal slime, coal powder, sawdust, wood, coconut shell, palm shell, etc.
Processing Ability: 770-2800TPH
Screw Diameter: 1500~3000mm
Rotation Rate: 2.5~6 r/min
Aggregate crushing value is a numerical index of the strength of the aggregate and it is used in construction of roads and pavements Crushing value of aggregates indicates its strength Lower crushing value is recommended for roads and pavements as it indicates a lower crushed fraction under load and would give a longer service life and a more economical performance
The average crushing value in the different tests is the actual crushing value of aggregate Important points to remember It is recommended that the crushing value of aggregate should be less than 30 If it is more than 30 then 10 finer aggregate is suggested to use The aggregate whose crushing value is less than 30 can be used for
Concept and significance of the Aggregate crushing value test The ‘ aggregate crushing value test gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Aggregate crushing value is defined as the percentage by weight of the crushed or finer material obtained when the test aggregates are subjected to a specified load under
Calculation of Aggregate Crushing Value Aggregate crushing value can be found by the following formula “Aggregate crushing value is determined by taking a percentage of weight crushed aggregate sample passing through 236 mm IS Sieve divided by weight of aggregate sample taken for test” Aggregate crushing value W3 W or W3 W2 – W1
The crushing value of aggregates is measured in the ratio between the crushed aggregates obtained from the IS sieve 236mm and the weight of the dried aggregate sample At least three samples should be tested from the same batch and average value to get accurate results
Crushing resistance of coarse aggregate is the key to the stability and durability of the skeleton structure of permeable asphalt PA mixture To determine the technical requirements of crushing value of coarse aggregate used in PA mixture steploading compression tests were conducted on the mixtures of PA13 and a control asphalt mixture AC13 respectively
Testing aggregates Part 110 Methods for determination of aggregate crushing value ACV Method for aggregates passing a 140 mm test sieve and returned on a 100 mm test sieve Also describes a method for other size fractions References This document is referenced by BS PD 66829 Aggregates Part 9 Guidance on the use of European test
The fraction passing sieve 236 mm shall be weighed to nearest 1gm Such two tests shall be taken for each lot Calculation Records • Aggregate Crushing Value B A x100 • The mean of the two results shall be reported to the nearest whole Also read Core cutter method Impact Value of Coarse Aggregate
Used to crush aggregates core samples and similar materials when a reduction in sample size is necessary The crusher has a jaw opening of 100x60 mm and can produce from 100 to 400 kg of material per hour The movement of the jaws can be adjusted from 2 to 18 mm The crushed sample can be further reduced using the Hammer mill for laboratory
Sep 05 2018 · • Aggregate crushing value W2 x 100 W1W – W2 Weight of fraction passing through the appropriate sieve – W1W Weight of surface dry sample • The aggregate crushing value shall not exceed 30
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