Aggregate Impact Values, (AIV's), below 10 are regarded as strong, and AIV's above 35 would normally be regarded as too weak for use in road surfaces. Aggregate Impact Values and Aggregate Crushing Values are often numerically very similar, and indicate similar aggregate strength properties. Aggregate Impact Value; Test Specifications:
Aggregate Testing Equipments - Aggregate Crushing Value ...
AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The apparatus used is Cylindrical measure and plunger, Compression testing machine, IS Sieves of sizes – 12.5mm, 10mm and 2.36mm.
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BS 812 part 110 describes a method to determine the aggregate crushing value (ACV) which gives a relative measure of the crushing resistance of aggregate under an increasing compressive load.The method is applicable to aggregates passing a 14.0 mm test sieve and retained on a 10.0 mm test sieve.
The aggregate crushing value provides a relative measure of the resistance of an aggregate to crushing under gradually applied crushing load. The aggregate crushing value test is a useful guide when dealing with aggregates of unknown performance, particularly when lower strength is suspected.
The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Crushing value is a measure of the strength of the aggregate. The aggregates should therefore have minimum crushing value. 3. APPARATUS
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The aggregate crushing value is a value which indicates the ability of an... Chat Online. Assessment of Recycled Aggregate Concrete. absorption and specific gravity, (iii) aggregate crushing value and aggregate ... This is complying with BS 882:1992, which states a 10% maximum value …
How to Find Aggregate Crushing Value and Its Test Procedure?
The aggregate crushing value gives a relative measure of the resistance of aggregate in bulk to crushing under a gradually applied compressive load. Crushing value is defined as the ratio of finess passing a standard sieve produced by crushing under standard condition to the weight of coarse aggregate expressed as a percentage.
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AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The apparatus used is Cylindrical measure and plunger, Compression testing machine, IS Sieves of sizes – 12.5mm, 10mm and 2.36mm
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Nov 03, 2013· Aggregates with lower crushing value indicate a lower crushed fraction under load and would give a longer service life to the load and hence a more economical performance.Weaker aggregates if used would get crushed under traffic loads, would produce smaller pieces not coated with binder and these would be easily loosend out reasulting in loss ...
Aggregate Crushing Value Test – Determine Aggregate ...
Aggregate Abrasion Machine To be confirmed by email: 000 Aggregate Abrasion Machine determines the Aggregate Abrasion Value (AAV) Inadequate abrasion resistance of road, Aggregate Crushing Value (Ten Percent Fines) 150 dia To be confirmed by .
AIM To determine the aggregate crushing value of coarse aggregates. APPARATUS i) Cylindrical measure and plunger ii) Compression testing machine iii) IS Sieves of sizes 12.5mm, 10mm and 2.36mm PROCEDURE i)...
Determination of Aggregate Crushing Value | Density ...
Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load. Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates are subjected to a ...
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Aggregate Impact Value on Coarse Aggregates Apparatus for Aggregate Impact Test. The apparatus as per IS: 2386 (Part IV) – 1963 consists of: (i) A testing machine weighing 45 to 60 kg and having a metal base with a painted lower surface of not less than 30 cm in diameter.
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The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied crushing load. The test consists of subjecting the specimen of aggregate in standard mould to a compression test under standard load conditions (See Fig-1).
Values of 22.8%, 28.2% and 4.4% were obtained for aggregate crushing value, aggregate impact value .... aggregate crushing value and the compressive strength of concrete, the test is a guide to the expected strength of a concrete.
The aggregate impact value of coarse aggregate provides a relative measure of the resistance of an aggregate to sudden shock or impact. The oven dried and accurately weighed aggregates are subjected to a total of 15 blows of specified weight and fall and percentage of fines formed in terms of the total weight of the sample is expressed as the aggregate impact value.
Aggregate Crushing Value | Construction Aggregate | Concrete
May 08, 2013· Aggregate crushing Value =(WB/WA) × 100 Record The mean of the two results is reported to the nearest whole number as the aggregate crushing value of the tested material. o After test clean the sieve by brush.