Calculation of aggregate crushing value The aggregate crushing value is defined as the ratio of the weight of fines passing through specified IS here 2 36mm sieve to the total weight of sample expressed in percentage W1= Weigh of the total aggregates Wa-We W2= Weigh of aggregates passing through 2 36mm IS sieve
number Report the mean as the Aggregate Crushing Value unless the individual results differ by more than 0 07 times the mean value In this case repeat the test on two further specimens calculate the median of the four results to the nearest whole number and report the median as the Aggregate Crushing Value A data sheet is given as Form 7 7 1
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
Aggregate Crushing Value Test Procedure and Result Aggregate Crushing values is a relative resistance of aggregates to crushing under gradually applied compressive load In situations when aggregate value 30 or higher the result may be a mistake and in such cases the ten percent fines value…
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
The crushing value of aggregates is measured in the ratio between the crushed aggregates obtained from the IS sieve 2 36mm 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
Note 1 A procedure for testing coarse aggregate larger than 19 0 mm 3 4 in is covered in Test Method C535 Thus coarse aggregates with a maximum size between 19 mm 3 4 in and 37 5 mm …
The aggregate crushing value is a numerical index of the resistance of an aggregate to crushing under a gradually applied compressive load It is expressed as the percentage by mass of the crushed or finer material obtained when the test sample is subjected to a specified load under standard conditions
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
DOC Aggregate crushing value Test Lab Report Adnan Determine the aggregate crushing value of coarse aggregate 2 Assess suitability of coarse aggregates for use in different types of road Theory The aggregate crushing value give a relative measure of the resistance of an aggregate to crushing …
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 …
The crushing value of aggregates is measured in the ratio between the crushed aggregates obtained from the IS sieve 2 36mm 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 value apparatus ACV Aggregates testing equipment The aggregate crushing value ACV provides relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Two versions available 150 standard and 75 mm dia The apparatus comprehend cylinder plunger base plate tamping rod and measure
Sep 12 2015· Then crushed aggregates are then sieved through 2 36 mm sieve and weight of passing material W2 is expressed as percentage of the weight of the total sample W1 which is the aggregate crushing value Aggregate crushing value = W1 W2 100 A value less than 10 signifies an exceptionally strong aggregate while above 35 would normally be
Aggregate Crushing Machine As Per I S Part AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS 2386 Part IV1963 The …
Aggregates are the building blocks of concrete If you calculate the required material for concrete the fine coarse aggregates will occupy 70 to 80 of its volume Origin of Aggregates Aggregates …
May 08 2013· Objective For determination of the aggregate crushing value of coarse aggregate which passes 12 5 mm IS sieve and retained on 10 mm IS sieve Reference Standard IS 2386 Part IV -1963 Methods of test for aggregate for concrete Part IV Mechanical Properties Equipment Apparatus Steel Cylinder Sieves 12 5mm 10mm Cylindrical metal measure Tamping Rod Balance 0 …
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 relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Crushing value …
Aggregate Crushing Value Test -Determine Aggregate Crushing Aggregate Crushing Value Test Determine · Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates …
• 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 Aim To determine the moisture content of coarse aggregate IS code for aggregate …
Aggregate Crushing values is a relative resistance of aggregates to crushing under gradually applied compressive load In situations when 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
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
DOC Aggregate crushing value Test Lab Report Adnan Determine the aggregate crushing value of coarse aggregate 2 Assess suitability of coarse aggregates for use in different types of road Theory The aggregate crushing value give a relative measure of the resistance of an aggregate to crushing under gradually applied compressive load and is a numerical index of the strength of the
Aggregate impact and crushing value tests were carried out on the aggregates with PET gravel and CCS having AIV values of 0 3125 26 57 and 3 62 and ACV values of 2 29 and 28 for CCS and gravel respectively
Aggregate Crushing Value Civil Engineering Aggregate crushing value this test helps to determine the aggregate crushing value of coarse aggregates as per is 2386 part iv 1963he apparatus used …
Crushing value apparatus ACV Aggregates testing equipment The aggregate crushing value ACV provides relative measure of the resistance of an aggregate to crushing under a gradually …
