Jan 25, 2018· AGGREGATE IMPACT VALUE TEST AIM: To find Impact value of the given aggregate sample. APPARATUS The apparatus consists of an impacttesting machine, a cylindrical measure, tamping rod, IS sieve, balance, tamping rod and oven.
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May 01, 2013· Aggregate Impact Value – Civil Engineering Portal. AGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) – 1963.
Test Method RC June 2013 Final Page 2 of 3 4. Procedure (a) Fill the cylindrical test measure to about one third by discharging the aggregate from a scoop at a height not exceeding 50mm above the top of the container. Tamp the material with 25 blows of .
Log Angles machine is used to test the aggregate for; For a cantilever of effective depth of m, the maximum span to satisfy vertical deflection limit. Pozzolana cement is used with confidence for construction of; The main reinforcement in the heel of a Tshaped retaining wall is provided on
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.
Aggregate impact value is measured of toughness of aggregate . Toughness is the property of material which indicate its capacity which impact in sudden. Tougher the aggregate more suitable for wearing surface such as road surface.
54 The water freeze and thaw test requires the aggregates to be sealed and totally immersed in water and then be subjected to 50 cycles of freeze and thaw. The sodium sulfate test requires the aggregate to be immersed in a sodium sulfate solution and then be subjected to .
The abrasion test measures the degradation of a coarse aggregate sample that is placed in a rotating drum with steel spheres (Figure 7). As the drum rotates the aggregate degrades by abrasion and impact with other aggregate particles and the steel spheres (called the "charge").
May 25, 2018· C30 Concrete Mix design. C10 Concrete Mix design. Determination of Aggregate Loose Unit Weight, Determination of Aggregate Rodded Unit Weight, Determination of Fine Aggregate Rodded Unit Weight, and Determination of Aggregate Impact Value Test BS812 PART 31975. File format: .xls compatible with Ms offece 2007 and above.
Mar 21, 2018· The aggregate impact value is a measure of resistance to sudden impact or shock, which may differ from its resistance to gradually applied compressive load. Aggregate Impact Value {AIV} • AIV is the percentage of fines produced from the aggregate sample subjecting it to a standard amount of impact.
For example, ASTM D 692, Coarse Aggregate for Bituminous Paving Mixtures, specifies 5 cycles and a maximum percent loss of 12 percent when the sodium sulfate is used or 18 percent when the magnesium sulfate is used. Typical Values. Typical values depend upon the type of soundness test used.
IS: 2386(PartIV)1963 The aggregate shall be tested in a surfacedry condition. If dried by heating, the period of drying shall not exceed four hours, the temperature shall be 100 to 110°C and the aggregate shall be cooled to room temperature before testing.
The 150mm ACV apparatus consists of steel cylinder with a nominal diameter of 150mm, a plunger, baseplate, tamping rod and measure. All surfaces that come into contact with the aggregate are cadmium plated against corrosion. The metal measure is 115mm diameter x 180mm deep.
Note 1: A procedure for testing coarse aggregate larger than mm [3 / 4 in.] is covered in Test Method C535. Thus coarse aggregates with a maximum size between 19 mm [3 / 4 in.] and mm [1 1 / 2 in.] may be tested by Test Method C535 or Test Method C131/C131M.
Use this test method to determine the particle size distribution of aggregate samples, using standard sieves with square openings. Use Part I to determine a weightbased, drysieve analysis for an aggregate sample. Use Part II to determine a weightbased, sieve analysis for an aggregate sample requiring a washed sieve analysis.