Aggregate Impact Value on Coarse Aggregates Apparatus for Aggregate Impact Test The apparatus as per IS: 2386 (Part IV) - 1963 consists of: (i) A testing machine weighing 45 to 60 kg and having a metal base with a painted lower surface of not less than 30 cm in diameter. It is supported on level and plane concrete floor of minimum 45 cm thickness.
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 are subjected to a specified load under standardized conditions.
ScopeThis Part of BS812 describes a method for the determination of the aggregate crushing value (ACV) which gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. The method is applicable to aggregates passing a14.0mm test sieve and retained on a 10.0 mm test sieve.
Aug 27, 2019· 1. Compression Testing Machine of 500 kilo Newton capable of loading at uniform rate of 40 kilo Newton per minute. 2. Case Hardened Test Mould consists of a 152 mm diameter open …
May 17, 2019· The apparatus for the standard aggregate crushing test as per IS: 2386-1963 (Part IV) consist of the following: The test mold-a 15.2 cm diameter open …
After that, the Los Angeles abrasion test machine is uniformly rotated at a speed of 20 to 33 revolution per minute. For grading A, B, C, or D machine is run for 500 revolutions per minute and for grading …
per clause 3.2 (a) of IS 2386 (Part 1) : 1963 - Cylindrical measure of 11.5 cm dia and 18.0 cm height 4 Aggregate impact value - Impact testing machine [Clause 4.2 (a) and Fig 2 of
checking the mechanical properties (Aggregate Impact Value, Aggregate Crushing Value, and Ten Percent Fines Value), and shape characteristics (Flakiness Index, Elongation Index and Angularity Number) of aggregates used in roadway construction. The test procedures are described as per BS: 812:1975 (PART 1, 2, 3) standards.
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The aggregate impact test is conducted as per IS-2386 Part IV. The aggregate Impact value indicates a relative measure of the resistance of aggregate to a sudden shock or an Impact, which in some aggregates differs from its resistance to a slope compressive load in crushing test. A modified Impact test is also often carried out in the case of ...
The aggregates crushing value test should be performed as per IS code 2386 Part IV. 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 …
Jul 25, 2019· Aggregate Crushing Test – The aggregate crushing value gives the relative measure of resistance against crushing under crushing load applied gradually.The aggregate test is …
As Per IS 2386 (P-IV) ASTM: C131, AASHTO T-96 Specification: Los Angeles Abrasion Testing Machine is used for determining the resistance to wear of small size coarse aggregates and crushed …
checking the mechanical properties (Aggregate Impact Value, Aggregate Crushing Value, and Ten Percent Fines Value), and shape characteristics (Flakiness Index, Elongation Index and Angularity …
determination of the ten per cent fines value (TFV) of aggregates which give a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Two procedures are described, one in which the aggregate is tested in a dry condition and the other in a soaked condition.
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.
Mar 30, 2020· Impact testing machine is commonly used to determine the service life of a part or material. It evaluate an object's capacity to withstand high-rate compressive loading. Impact resistance can be among the most challenging qualities to measure …
Is:2386(PartIll)-1963 2.2 Method I - Aggregate Larger than 10 mm 2.2.1 4 b! 4 4 4 f > g> Apparatus - The apparatus shall consist of the following: Balance -A balance or scale of capacity not less than 3 kg, …
Sep 12, 2015· Crushing Test Fig-1 Crushing Test Setup. One of the model in which pavement material can fail is by crushing under compressive stress. A test is standardized by IS: 2386 part-IV and used to determine the crushing strength of aggregates. The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied ...
IS : 2386 ( Part I ) - 1963 Indian Standard METHODS OF TEST FOR AGGREGATES FOR CONCRETE PART I PARTICLE SIZE AND SHAPE 0. FOREWORD 0.1 This Indian Standard (&rt I) was adopted by the Indian Standards Institution on 22 August 1963, after the draft finalized by the Cement
Jan 23, 2018· AIM: To determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) - 1963. APPARATUS: i) Cylindrical measure and plunger ii) Compression testing machine iii) IS Sieves of sizes - 12.5mm, 10mm and 2.36mm PROCEDURE: i) The aggregates passing through 12.5mm and retained on 10mm IS Sieve are oven-dried at a…
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 i) The aggregates passing through 12.5mm […]
The aggregates crushing value test should be performed as per IS code 2386 Part IV. 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.
screeni ng deck to secondar y crusher s, and i s then r eturned to the pr imary screeni ng deck to be separated into desired products. A crushed stone plant contains a series of screening decks, …
Aug 02, 2013· Aggregate Crushing Value AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The …
a14.0mm test sieve and retained on a 10.0 mm test sieve. For other size fractions, a recommended method is described in appendix A. The method is not suitable for testing aggregates with an aggregate crushing value higher than30, and in such cases the method for ten per cent fines value described in BS 812-111 is applicable.
Aggregate Abrasion Value Polishing Stone. Introduction In 1950 increased traffic flows and higher speeds on trunk roads, together with concerns about road safety led to research into the relationship …
The crushed aggregate sample which is finer than 2.36 mm is separated and expressed as a percentage of the original weight taken in the mould. The percentage of weight passed through the 2.36m IS sieve is known as Aggregate crushing value.. 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 ...
gravel, sand, and pit run aggregate for: a) Routine testing and quality control or assurance of materials as they are produced in the field, or b) Quality assurance testing, or c) Submission to a testing …
the process of comminution, which consist of crushing and screening (C&S), with the purpose of reducing the particle size. All C&S operations are made at plants, containing a mixture of machines, such as crushers, screens, and transport units, optimized for prevailing circumstances.2 1.3.1 Mining basics3
To determine the aggregate crushing value by compressive testing machine. Apparatus : a) Steel cylinder with open ends, and internal diameter 152mm, square base plate, plunger having a piston of diameter 150mm, with a hole provided across the stem of the plunger so that a rod could be inserted for lifting or placing the plunger in the cylinder.
AGGREGATES CRUSHING VALUE TEST (IS: 2386 – PART-IV) Purpose: Purpose of this test covers the procedure to determine the aggregates crushing value of coarse aggregates. Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load.
May 17, 2019· The apparatus for the standard aggregate crushing test as per IS: 2386-1963 (Part IV) consist of the following: The test mold-a 15.2 cm diameter open-ended steel cylinder with square base plate; plunger having a piston of diameter 15 …
The aggregate shall be taken as in the case of crushing strength value test i.e., the aggregate should pass through 12.5 mm I.S. sieve and retained on 10 mm I.S. sieve. It should be oven dried at 100°C to 110°C for four hours and then air cooled before test.
HA 50.05. For obtaining representative sample for sieve analysis. It is suitable for dry sands, fine powders, ores, refractory materials, mineral aggregates, pigments, powered coal, soap, cement etc. Up to a maximum particle size of 3 mm. A hopper with an …
Jul 12, 2021· The crushing strength or aggregate crushing value of a given road aggregate is found out as per IS-2386 Part- 4. The aggregate crushing value provides a relative measure of resistance …