The determination of crushing value of slag is as follows The aggregate impact value should not exceed 45 by weight of the aggregate for concrete other than wearing surface The aggregate impact value should not exceed 35 by weight for concrete wearing surface such as runways roads pavements floors etc 10 IS 2386 Part 4 The average crushing value of the steel slag aggregate is 520
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
The apparatus of the aggregate impact value test consists of A testing machine weighing 45 to 60 kg and having a metal base with a plane lower surface of not less than 30 cm in diameter Level and plane concrete floor of minimum 45 cm thickness are used to support it
COMMENTS Aggregate Impact Value The aggregate impact value indicates a relative measure of the resistance of the aggregate to a sudden shock or impact which in some aggregates differs from its resistance to a slow compressive load
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
The '' Aggregate Impact Value'' is the mean of two observations rounded to a nearest whole number Precautions Place the plunger centrally so that it falls directly on the aggregate sample and does not touch the wall of the cylinder in order to ensure that the entire load is transmitted on the aggregates
Sep 12 2015 · Then crushed aggregates are then sieved through 236 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 W1W2100 A value less than 10 signifies an exceptionally strong aggregate while above 35 would normally be regarded as weak aggregates Also Read
Note 1 A procedure for testing coarse aggregate larger than 190 mm 3 4 in is covered in Test Method Thus coarse aggregates with a maximum size between 19 mm 3 4 in and 375 mm 1 1 2 in may be tested by Test Method or Test Method
aggregate crushing value test conclusion Mine Equipments Aggregate impact and crushing test SlideShare 8 Feb 2012 These crushing tests can reveal aggregate properties subject to per cent of the Aggregate Crushing Value and itcan be used for the same purpose
Mar 31 2017 · 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 compressive load Lower the aggregate crushing value greater will be the resistance to crushing under gradually applied compressive load
Oct 09 2018 · Basically the aggregates impact value is aggregate which provides a relative measure of the resistance of an aggregate to sudden shock or impact However it can be explain as the aggregate crushing value which is defined as a ratio of the weight of fines passing the specified sieve to the total weight of the sample expressed as a percentage
Feb 08 2012 · The aggregate impact value AIV is B AIV × 100 1 ARESULTSAn average is taken of the two tests and the result is recorded to the nearestwhole number as the Aggregate Impact AIV is normally about 105 per cent of the Aggregate Crushing Value and
Jun 13 2019 · The aggregate crushing value BA100 Where B is weight of fraction passing 236mm sieve A is weight of surface dry sample taken in mould Note The aggregate crushing value should not be more than 45 for aggregate used for concrete other then the wearing surfaces 30 for concrete used the surfaces such as runway roads and air field pavements Also Read
Sep 12 2015 · The crushed aggregate is allowed to pass through 236 mm IS sieve And the impact value is measured as percentage of aggregates passing sieve W2 to the total weight of the sample W1 Aggregate impact value W1W2100 Aggregates to be used for wearing course the impact value shouldn''t exceed 30 percent
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 standardized conditions and the strength of the aggregate used in road
Aug 29 2019 · AGGREGATE CRUSHING VALUE TEST Object of the Experiment a To determine crushing value of given aggregates Aggregate Crushing Value Test b To assess suitability of aggregates for use in different types of concrete and pavements Theory and Scope The road aggregate is generally manufactured to a specified grading and stock piled at a sight
Jul 14 2018 · The aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact which in some aggregates differs from Its resistance to a slow compression load The Indian Standard CODE IS 2386 Part IV – 1963 is used for procedure and classification of aggregate by result
Aggregate Impact Tester SICMAIT01 As per IS 2386 IV 9377 This Apparatus is used to determine aggregate impact value of coarse aggregate The hammer of the tester fall freely from 380 mm height on coarse aggregate for 15 times15 crushed aggregate
Aggregate crushing value provides the resistance of an aggregate sample to crushing under gradually applied compressive load Generally the test is conducted on
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
Aggregate Lab Equipment Offering you a complete choice of products which include Aggregate Lab Equipment such as Impact Tester Laboratory Pulveriser Dorry Abrasion Testing Machine Density Basket Proctor Compaction Apparatus Aggregate Crushing Value Apparatus and many more items
The apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine conforming to IS 2386 Part IV 1963IS Sieves of sizes – 125mm 10mm and 236mm A cylindrical metal measure of 75mm dia and 50mm depth A tamping rod of 10mm circular cross section and 230mm length rounded at one end and Oven
crushing test helps to determine the aggregate crushing value of coarse aggregates as per IS 2386 Impact test is done to determine the aggregate impact value
Feb 08 2012 · Aggregate impact value is to classify the stones in respect of their toughness property as indicated below Aggregate impact values 10 Exceptionally strong