High-tech zone, Zhengzhou, China
Processing capacity:468-1837t/h
Feeding size:150-1061mm
Appliable Materials: river pebble,granite,quartz,dolomite,bluestone,iron ore,limestone,coal gangue,construction rubbish,basalt,sandstone,rock,iron ore,pebbles,cobblestone,bluestone,iron ore,concrete,cement clinker,calcite etc.
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Penetration value of plunger in 10 minutes 150 mm for rounded or partially rounded aggregates 200 mm for normal crushed aggregates 240 mm for honeycombed aggregates result calculation ten percent fines value w2w1 x 100 which shall fall between 75 to 125
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 125mm 10mm and 236mm procedure to determine aggregate crushing value
May 05 2010 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
The crushing value of the coarse aggregate is defined as the relative measure of the resistance which is offered by the aggregate to the crushing under the gradually applied load 2 impact value of aggregate is 2386 part iv 1963
Calculation of aggregate crushing value 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 the crushing value of aggregate w2w1 x 100 lab report
The crushing values of two different lithologic coarse aggregates were measured under different pressures 400kn or 600kn respectively the crushing value criterion of coarse aggregates used in the pa mixture was suggested to be no greater than 16 after comparative analysis 1
Calculate aggregate crushing value the ratio of the weight of fines formed to the total sample weight in each test shall be expressed as a percentage the result being recorded to the first decimal place aggregate crushing value w b w a 100 w b w a 100
Jan 05 2021 the crushing value of the coarse aggregate is defined as the relative measure of the resistance which is offered by the aggregate to the crushing under the gradually applied load 2 impact value of aggregate is 2386 part iv 1963
Penetration value of plunger in 10 minutes 150 mm for rounded or partially rounded aggregates 200 mm for normal crushed aggregates 240 mm for honeycombed aggregates result calculation ten percent fines value w2w1 x 100 which shall fall between 75 to 125
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 cement concrete road the aggregate whose crushing value is
Sep 05 2018 the fm varies between 2 to 32 for fine aggregate between 55 to 8 for coarse aggregate and between 35 to 65 for all in aggregate the objective of finding fm is to grade the given aggregate for the required strength and workability of concrete mix with minimum cement
Jan 25 2021 aggregate crushing value acv is 2386 2016 method of test for aggregates for concrete part iv mechanical properties aggregate crushing value the aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a
Aggregate crushing value of coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load test standard is 2386part iv 1963 test apparatus for crushing value test of aggregate openended cylinder with the base plate of 15cm diameter plunger
Aggregate crushing value is a relative resistance of aggregates to crushing under gradually applied compressive load in situations when the aggregate value 30 or higher the result may be a mistake and in such cases the ten percent fines value should be determined and used instead
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 51
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
Calculation of aggregate crushing value the aggregate crushing value is defined as the ratio of the weight of fines passing through specified is here 236mm sieve to the total weight of sample expressed in percentage w1 weigh of the total aggregates wawe w2 weigh of aggregates passing through 236mm is sieve
The aggregate crushing value test indicates the strength of aggregate which is the most essential property of coarse aggregate the aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load for achieving a high quality of pavement aggregate of higher crushing strength ie low
Aggregate used in road construction should be strong enough to resist crushing under traffic wheel loads if the aggregates are weak the stability of the pavement structure is likely to be adversely affected the strength of coarse aggregates is assessed by aggregate crushing test
Tests were conducted to determine the properties of plastic aggregate such as density specific gravity and aggregate crushing value as 100 replacement of natural coarse aggregate nca with plastic coarse aggregate pca is not feasible partial replacement at various percentage were examined 8 9
To calculate aggregate crushing value by testing aggregate passing 125 mm sieve and retained on a 10 mm sieve scope this procedure covers all relative activity for the project site to determine the flakiness of particles of coarse aggregate test on coarse aggregate more significant than 63 mm in
Then crushed aggregates are then sieved through 236 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
May 08 2013 objective for determination of the aggregates 10 fines value of coarse aggregate which passes 125 mm is sieve and retained on 10 mm is sieve reference standards is 2386 part iv1963 methods of test for aggregate for concrete part iv mechanical properties equipment apparatus steel cylinder sieves 125mm10mm cylindrical metal measure tamping rod
Aggregate impact value this test is done to determine the aggregate impact value of coarse aggregates as per is 2386 part iv 1963 for non wearing surface its max limit is 45
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