Welcome to visit us!
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
[email protected]May 22, 2020· The aggregate crushing value should not be more than45% for aggregateused for concrete other than the wearing surfaces. 30% for concrete used the surfaces such as runway, roads and air field pavements.
Test Procedure.First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. Now fill the aggregate in the mould along with the plunger on top. Then placethe ...
Apr 26, 2018· 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. Aggregate crushing value= (W2 / W1) × 100
May 27, 2020· aggregate Crushing value= (B/A)*100 Where B is Termed as the weight of fraction passing 2.36 mm IS sieve A is Termed as the weight of surface dried sample taken in a mold. The aggregate crushing value should not be more than45% by weight.
Aug 11, 2020· Theaverage crushing value in the different tests is the actual crushing value of aggregate. Important points to remember. It isrecommended that the crushing value of aggregate should be less than 30%. If it is more than 30 % then 10% fineraggregateis suggestedto use. The aggregate whose crushing value is less than 30% can beused for cement concrete road. The …
Procedure to determine Aggregate Crushing Value i) The aggregatespassing through 12.5mmand retained on 10mm IS Sieve are oven-dried at a temperature of 100 to 110 o C for 3 to 4hrs. ii) The cylinder of the apparatus is filled in 3 layers, each layer tamped with 25 strokes of a tamping rod.
To Calculate Crushing Value Of Aggregate.Aggregate crushing valuecivil to is 2386 part iv1963aggregate crushing valueis designed for only for is sieves of sizes , 10mm and , for 20mm and 10mm coarseaggregatewe need to take different ranges of sieves, then cylinders size will also changes.
The ‘ aggregate crushing value test ` gives arelative 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 …
Aggregate Crushing Valueand Its Test Procedure: One of the test in which concrete material can fail is due tocrushingunder compressive stress.Aggregate crushingtest is standardized by IS: 2386 part-IV and used to verify thecrushingstrength of aggregates. The aggregates should be oven dried, which can passes through 12.5mm and retained on ...
AGGREGATE CRUSHING VALUEThis test helps to determine theaggregate crushing valueof 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
May 27, 2020· Thecrushing valueof anaggregateindicates its resistance againstcrushingunder gradually applied compressive loads. The standardaggregate crushingtest is made onaggregatepassing 12.5mm IS sieve and retained on 10 mm IS sieve. Procedure. About 6.5 Kg material consisting of aggregates passing 12.5mm IS sieve and retained on 10mm sieve is ...
Theaggregate crushing valueis a numerical index of the resistance of anaggregatetocrushingunder 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.
To Calculate Crushing Value Of Aggregate.Aggregate crushing valuecivil to is 2386 part iv1963aggregate crushing valueis designed for only for is sieves of sizes , 10mm and , for 20mm and 10mm coarseaggregatewe need to take different ranges of sieves, then cylinders size will also changes.
May 08, 2013·Aggregate crushing Value=(W B /W A) × 100 Record. The mean of the two results is reported to the nearest whole number as theaggregate crushing valueof the tested material. Safety & Precautions: Use hand gloves while removing containers from oven after switching off the oven. To wear safety shoes & helmet during the time of test.
To Calculate Crushing Value Of Aggregatecz eueu. The Percentage Fines is the ratio of the mass of fines formed by thecrushingprocessto calculatethe load required to 01_03_Aggregate10% FinesValueGet Price And Support OnlineCrushing valueapparatus (ACV) …
We have objectiveof aggregate crushing valuetest,May 08 2013 ·Aggregate Crushing ValueTest Appratus Preparation of sample Test sample consistof aggregatepassing a 125mm IS sieve and retained on a 10mm IS sieve Theaggregateto be tested is …
12.Crushing value of aggregate. Determination of thecrushing valueof anaggregateis helpful to find the compressive strength of theaggregate, whether it is suitable for the concrete work or not. One of the important properties of aggregates affects the overall strength of the structure. 13. Impactvalue of aggregate
Sampling forAggregate Crushing ValueTest: For theAggregate crushing valuetest, anaggregatesample passing through 12.5 mm IS sieve and retained on 10mm IS sieve is selected and dried to a temperature of 105 ºC to 110 ºC then cooled to room temperature. To fill the cylindrical measure mould about 6.5 kg of a sampleof aggregateis sufficient.
BS 812 part 110 describes a method to determine theaggregate crushing value(ACV) which gives a relative measure of thecrushingresistanceof aggregateunder 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.
Do you want a customized solution?
CONTACT US