What is the need of impact test? - Quora

Jul 17, 2017· The aim of aggregate impact test is to determine the relative measure of the resistance of aggregate to sudden shock or impact in which in some aggregate differs from its resistance to a slowly applies compressive load. The property of a material ...

Aggregate Impact Value test – we civil engineers

Jan 23, 2018· Aggregate Impact Value test determines the Aggregate Impact Value (AIV) of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact. Resistance of the aggregates to impact is termed as toughness. Aggregates used in the pavement should be able to resist the effect caused by the jumping of the steel ...

Aggregate impact and - SlideShare

Feb 08, 2012· Aggregate impact and 1. 10 Aggregate Crushing Value TestINTRODUCTION The principal mechanical properties re~ired in road stones are Q satisfactory resistance to crushingunder the roller during construction and (jjI adequate resistance to surface abrasion under traffic.

Impact Test on Aggregates

Aggregate impact value (The value of aggregate impact test) = (W1/W2)*100. The value of aggregate impact test should not be more than 45% by weight of aggregates, used for concrete other than wearing surface. An impact value 35% is permissible for the bituminous macadam. Maximum permissible impact value for the water bound macadam is 40%.

7 Lab Test on Aggregates that we Use in Concrete Construction!

Aggregate impact value is the same as the abrasion test result. Impact value of aggregate should not exceed 30 percent for aggregate used for surface wearing course and should not exceed 45 per cent for surface other than wearing course.

Aggregate Impact Value Testing | AIV TEST | Civil ...

Aggregate Impact Value Test. AIV test is conducted to determine the Aggregate Impact Value of Coarse aggregate. 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.

(PDF) AGGREGATE IMPACT TEST

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DETERMINATION OF AGGREGATE CRUSHING VALUE

aggregate impact value is a measure of resistance to sudden impact or shock, which may differ from its resistance to gradually applied compressive load. 3. APPARATUS The apparatus of the aggregate impact value test as per IS: 2386 (Part IV) – 1963 consists of:

Determination of Aggregate Impact Value - CivilArc

Jan 12, 2017· The aggregates must thus have adequate rigidity to resist their breakdown due to excessive impact. This property is calculated by impact value test. The aggregate impact value is a calculation of the resistance to abrupt impact, bang or shock, which may vary from its resistance to steadily, applied compressive weight. Procedure:

Impact and Crushing Value

The Aggregate Impact Value Testing Apparatus is robustly designed to determine the Aggregate Impact Value (AIV) of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact. The number of blows delivered to the sample is automatically documented by the counter that is fitted to the machine.

Determination of Aggregate Impact Value - YouTube

Sep 05, 2013· Licensed to YouTube by The Orchard Music (on behalf of Navras Records), and 1 Music Rights Societies; ... Aggregate Impact Value - Duration: 7:07. Mohan A 90,211 views. 7:07.

Aggregate Crushing Value Test -Determine Aggregate ...

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 …

Determination of Aggregate Impact Value - Impact Test on ...

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.

DETERMINATION OF AGGREGATE IMPACT VALUE - YouTube

Dec 08, 2017· In this video, we will see the procedure of determining aggregate impact value as per IS 2386 PART4.

Standard Test Methods for Determination of the Impact ...

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 | Encyclopedia.com

aggregate impact value See AGGREGATE TESTS. Source for information on aggregate impact value: A Dictionary of Earth Sciences dictionary.

What is aggregate impact value? - Quora

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...

What is aggregate impact value? - Quora

Oct 08, 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...

What is impact value test of aggregate ? - Learn CIVIL

The impact value test of aggregate gives a relative measure of the resistance of an aggregate to sudden shock or impact. Steps by step procedure for Impact value test of aggregate . The test sample consists of aggregate are of size passing through 12.5mm and retained on 10mm I.S. Sieve. Sample of aggregate shall be dried in an oven for a period ...

(DOC) AGGREGATE IMPACT VALUE TEST | hong g.woei - …

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 slow compressive load. The method of test covers the procedure for determining the aggregate impact value of …

Aggregate Crushing Value - Civil Engineering

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

Aggregate Impact Value Test as per IS 2386 (Part-IV) 1993 ...

Aug 29, 2019· The aggregate should therefore have sufficient toughness to resist their disintegration due to impact. This characteristic is measured by Impact Value Test. The aggregate impact value is the measure of resistance to sudden impact of shock, which may differ from its resistance to gradually applied compressive load. Equipments

Impact Value of Aggregate

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 compressive load. . apparatus required. Fig. 1: Balance. Balance should be accurate upto 1 g.

Exp 4 Aggregate Impact Value - Civil Engineers PK

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.

Aggregate Impact value Test Apparatus, Procedure and uses ...

Procedure of Aggregate Impact value test. The test sample: normally aggregates sized 10.0 mm to 12.5 mm. the aggregates should be dried by heating at 100-110 0C for a period of 4 hours and cooled.

7.6 Aggregate Impact Value 7.6.1 Scope.

7.6 Aggregate Impact Value 7.6.1 Scope. The aggregate impact value gives a relative measure of the resistance of the aggregate to sudden shock or impact. The particular purpose which an aggregate is meant to serve requires the aggregate to have a particular strength which is usually stated in the specification. This test provides

Aggregate Impact Value - Civil Engineering

The apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine conforming to IS: 2386 (Part IV)- 1963,IS Sieves of sizes – 12.5mm, 10mm and 2.36mm, 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.

Aggregate Impact Test » Engineering Basic

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.