Determination of aggregate impact value (AIV) of given aggregate sample (BS-812) Significance: Aggregates used in the construction of roads should be strong enough to resist crushing under traffic wheel loads. It gives relative measure of the resistance of an aggregate to sudden shock or impact.

Aggregate impact and crushing test - SlideShare 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 ValueThe AIV is normally about 105 per cent of the Aggregate Crushing Value and itcan be used for the same purpose...

Specifies methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. General Product Information - (Show below) - (Hide below)

Testing aggregates - Part 111: Methods for determination of ten per cent fines value (TFV By حسن مجيد The Government of the Hong Kong Special Administrative Region Aggregates for Concrete CS3:2013 Construction Standard

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. Procedure o f Aggregate Impact Test The test sample consists of aggregates sized 10.0 mm 12.5 mm. Aggregates may be dried by heating at 100-110° C for a period of 4 hours and cooled.

Methods for determination of aggregate impact value … Aggregate Impact Value (AIV) = 𝑾 𝑾 × Calculate the mean of the two results to the nearest whole number. Report the mean as the aggregate impact value, unless the individual results differ by more than 0.15 times the mean value. In this case repeat the test on two further specimens,

For the BS 812-112 method, a small portion of 14–10-mm-sized coarse aggregate particles is confined in a steel pot and subjected to 15 blows by a small hammer in a standardised test rig, after which the ' aggregate impact value' (AIV) is determined from the fine material generated, expressed as a percentage of the original weight of the ...

The Method for sieve analysis of fine and coarse Aggregate to determine the Fineness Modulus of coarse and fine aggregate. Code: (C 136-05) Experiment No. 4 . Method for determination of Aggregate Impact Value (AIV) under dry conditions. Code: (BS-812) Experiment No. 5 . Method for the determination of bulk density and voids in aggregates.

DETERMINATION OF AGGREGATE IMPACT VALUE (AIV) DETERMINATION OF AGGREGATE IMPACT VALUE (AIV) (BS 812-112) Scope: This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact.

Methods for determination of aggregate impact value . Report the mean as the aggregate impact value, unless the individual results differ by more than 0.15 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

5.1 Impact Value, as determined using the standard 4.5 kg (10 lbm) hammer, has direct application to design and construction of pavements and a general application to earthworks compaction control and evaluation of strength characteristics of a wide range of materials, such as soils, soil aggregates, stabilized soil and recreational turf. Impact Value is one of the properties used to evaluate ...

Aggregate Impact Value AIV Test Machine Mechanical and . Utest Material Testing Equipment Product Code UTA 0650 Aggregate Impact Value AIV Testing Apparatus Standards BS 812 112 The Aggregate Impact Value Testing Apparatus meets with BS 812 it is robustly designed to determine the Aggregate Impact Value AIV of aggregates which provides a relative measure of the resistance of an aggregate …

In this video, we will see the procedure of determining aggregate impact value as per IS 2386 PART4.

BS 812 : Part 110 : 1990 Methods for determination of aggregate crushing value ( ACV ) BS 812 : Part 111 : 1990 Methods for determination of ten per cent fines value ( TFV ) BS 812 : Part 112 : 1990 Methods for determination of aggregate impact value ( AIV ) BS 812 : Part 113 : 1990 Methods for determination of aggregate abrasion value ( AAV )

This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. Two procedures are described, one in which the aggregate is tested in a dry condition, and the other in a soaked condition. The methods

(PDF) DETERMINATION OF AGGREGATE IMPACT . Scope: This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact Principle A test specimen is compacted, in a

Part 111 Methods for determination of ten per cent fines values (TFV) Part 112 Methods for determination of aggregate impact value (AIV) Part 113 Method for determination of aggregate abrasion value (AVV) Part 114 Method for determination of the polished-stone value Part 117 Method for determination of water-soluble chloride salts

BS 812-112, 1990 Edition, June 29, 1990 - Testing aggregates - Part 112: Methods for determination of aggregate impact value (AIV) Methods which give a relative measure of the resistance of an aggregate to sudden shock or impact.

Methods for determination of aggregate impact value (AIV ... Aggregate Impact Value (AIV) = 𝑾 𝑾 × Calculate the mean of the two results to the nearest whole number. Report the mean as the aggregate impact value, unless the individual results differ by more than 0.15 times the mean value. In this case repeat the test on two further specimens,

Sieving method (mass of fines passing the 0.063mm sieve); methods for determination of aggregate crushing value (ACV); method for determination of aggregate impact Value (AIV); test method for materials finer than 75- ?m (No. 200) sieve in mineral aggregates by washing; methods for sampling; density (Particle density and water absorption (10mm ...

The Aggregate Impact Value (AIV) (M2/M1)x100 19.17 % 23.17 %. AIV = M2/M1 * . Average aggregate impact value of the sample is 21.17 %. DISCUSSION 1. Give the impact value of a good aggregate to ensure the strength of the. aggregate used in road construction. -Aggregate impact value is measure of toughness of aggregate.

NOTE 3 When an aggregate impact value (AIV) as determined by the procedure given in BS 812-112 is available, the force required (in kW) for the first ten per cent fines test can be estimated by means of the following equation more conveniently than by the use of the dial gauge. Grading of the aggregate Minimum mass of the test portiona mm kg ...

aggregate impact value AIV which gives a relative measure of the resistance of an aggregate to sudden shock or impact '' BSI BS 812 112 Testing aggregates Engineering Standards April 23rd, 2018 - standard bsi bs 812 112 testing aggregates part 112 methods for determination of aggregate impact

This Part describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. Two procedures are described, one in which the aggregate is tested in a dry condition, and the other in a soaked condition.

methods for the determination of the aggregate impact value aiv which gives a relative measure of the resistance of an aggregate to sudden shock or impact get more info, determination of aggregate crushing value for standard size aggregates and non miscellaneous work instructions for chemical

Experiment No. 4: Determination of the aggregate impact value of different coarse aggregate samples. (BS 812) Scope & significance: Aggregate Impact Value The aggregate impact value gives a relative measure of the toughness or the resistance of aggregate sudden shock or impact is not proportional to the resistance to a slowly applied compressive load.

Determination of Aggregate impact Value (AIV) 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 slowly applied compressive load. With aggregate of aggregate impact value higher than 30 the result may be anomalous.

Construction: ILT-U-2357: Aggregate determination: Resistance to degradation of aggregates smaller than 37.5 mm (1 ½ ") by means of the angel machine, Resistance to abrasion and impact wear of coarse aggregates less than 37.5 mm, using the angels machine, Resistance to the degradation of coarse aggregates of sizes greater than 19 mm (3/4 ") by abrasion and impact in the machine of the angels.

882 methods for determination of aggregate impact value section 16 methods for determination of ten per cent fines value, this british standard a part of the bs 812 series describes methods for the determination of the aggregate impact value aiv which gives a …

Aggregate Impact Value (AIV) is the percentage of fines produced from the aggregate sample after subjecting it to a standard amount of impact. The standard amount of impact is produced by a known weight, i.e. a steel cylinder, falling a set height, a prescribed number of times, onto an amount of aggregate of standard size and weight retained in ...

testing aggregates - part 112: methods for determination of aggregate impact value (aiv) BS 1610-1(1992) : 1992 MATERIALS TESTING MACHINES AND FORCE VERIFICATION EQUIPMENT - SPECIFICATION FOR THE GRADING OF THE FORCES APPLIED BY MATERIALS TESTING MACHINES WHEN USED IN THE COMPRESSION MODE

DETERMINATION OF AGGREGATE IMPACT VALUE (AIV) (BS 812-112) Scope: This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. Principle A test specimen is compacted, in a standardized manner, into an open steel cup.

This Part describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. Two procedures are described, one in which the aggregate is tested in a dry condition, and the other in a soaked condition.

Objective For determination of the aggregate impact value of coarse aggregate, which passes 12.5 mm. IS sieve and retained on 10 mm. IS sieve. Reference Standards IS: 2386(Part IV)-1963 Methods of test for aggregate for concrete Part IV Mechanical Properties. Equipment & Apparatus Aggregate Impact Test Machine Sieves (12.5mm,10mm) Cylindrical metal measure Tamping Rod …

Aggregate impact value is the ratio of the weight of the fraction passing through 2.36 mm (weight W2) by the total weight of the sample (weight W1 + W2). Aggregate Impact Value = (W2/ (W1+W2)) * 100 = 80 gm / 300 gm = 26.67 (Impact Value) Where, W1= Weight of …