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Feb 01, 2014 The impact value is some times used as an alternative to its crushing value. Material passing 12.5mm and retained on 10mm sieve is taken. 13 14. AGGREGATE CRUSHING VALUE:The aggregate crushing value gives a relative measure of resistance of an aggregate to crushing under a gradually applied compressive load.
Feb 22, 2016 The crushing value of recycled CDW coarse aggregate was higher than the dolomitic aggregate by 1.09% to 1.92%. The angularity index of recycled CDW coarse aggregate was higher than the dolomitic aggregate by 10 to 16%. The elongation index of recycled CDW coarse aggregate was higher than the dolomitic aggregate by 10% to 15%.
May 25, 2020 Specific gravity and water absorption of coarse aggregate lab report is prepare after calculating above values. Note:-The specific gravity of coarse aggregate as per is code is 2.5 to 3. The water absorption of aggregate ranges from 0.1 to 2%.
Jan 20, 2020 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, step-loading compression tests were conducted on the mixtures of PA-13 and a control asphalt mixture AC-13, respectively.
(The ‘aggregate crushing value’ gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggregate of ‘aggregate crushing value’ 30 or higher, the result may be anomalous, and in such cases the ‘ten percent fines value’ should be determined instead…IS Code)
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 Procedure to determine Aggregate Crushing Value
0.5 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing ... aggregate crushing value of coarse aggregate. NOTE 1 -The ‘aggregate crushing value’ gives a relative measure of the resistance of an aggregate to crushing under a gradually applied ...
Sep 05, 2018 • Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates are subjected to a specified load under standardized conditions. • Aggregate crushing value is a numerical index of the strength of the aggregate and it is used in construction of roads and pavements.
DETERMINATION OF AGGREGATE CRUSHING VALUE 1. AIM 1) To determine the aggregate crushing value of coarse aggregates 2) To assess suitability of aggregates for use in different types of road pavement 2. PRINCIPLE The aggregate crushing value gives a …
May 11, 2020 DETERMINATION OF TEN PERCENT FINES VALUE OF COARSE AGGREGATE. Test standard: IS 2386 -Part IV: 1963 Purpose of Test: Ten percent fines value is a measure of the resistance of aggregate crushing subjected to loading and it is applicable to both weak and strong aggregate.
crushing value of coarse aggregate. purpose of ... determine the crushing value of ... example data aggregate crushing value. why 40 ton is applied for ... Read more Concept of Green Concrete Using Construction Demolished ...
The tests for Aggregate Crushing Value (ACV) and FACT (10% Fines Aggregate Crushing Test) measure the crushing strength of broken rock. These results do ... Coarse and ﬁ ne aggregate for use in concrete should comply with speciﬁ ed grading requirements (see Tables 24 and 25). Compliance with these requirements assists in
May 21, 2020 Importance of Impact Value Test: Generally, the majority of the aggregate impact value test is carried out to know the response of aggregates to different kinds of loads that the aggregates will be subjected to during their service life.. The need for impact value test is used to measure the toughness of aggregates which is nothing but the ability of aggregates to resist the sudden loading or ...
For the purpose of deciding whether a particular requirement of this standard is compiled with, the final value, ... Fine aggregate produced by crushing hard stone. 3.1.2.2 Crushed gravel sand - Fine aggregate ... 3.2 Coarse Aggregate - Aggregate most of which is
Then crushed aggregates are then sieved through 2.36 mm sieve and weight of passing material is expressed as percentage of the weight of the total sample which is the aggregate crushing value. A value less than 10 signifies an exceptionally strong aggregate while above 35 would normally be regarded as weak aggregates.
PURPOSE OF TEST: The strength of coarse aggregate is assessed by aggregate crushing test, the aggregate value provide the relative measure of resistance to crushing under gradually applied. Get Price BS 812-110-1990 Testing aggregates.
Sep 19, 2019 As per the definition given in the ‘IS: 2386 (Part III) – 1963’, (Indian Standard- Methods of Test for Aggregates for Concrete – Specific Gravity, Density, Voids, Absorption and Bulking), the specific gravity of coarse aggregates is the weight of the aggregates dried to constant weight in an oven at 100 C divided by its absolute volume including the natural voids within the aggregate ...
Ten percent fines value is a measure of the resistance of aggregate crushing subjected to loading and it is applicable to both weak and strong aggregate. Fine aggregates are defined as those passing 2.36mm sieve. The test aims at looking for the forces required to produce 10% of fine values (i.e. weight of fines aggregates/weight of all aggregates = 10%).
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