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### Aggregate Impact Value to BS - Aggregates - 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

### Aggregate Impact Value (AIV) Apparatus - Aggregate Impact ...

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.

### bs 812 aggregate impact value - rezidencegoethe.cz

Aggregates Impact Test: [Conforming to IS : 2386 – Part 4(1963)] With respect to concrete aggregates toughness is also consider. The resistance of the material to failure by impact is known as toughness. The aggregates should therefore have suffic...

### Aggregate Impact - an overview | ScienceDirect Topics

The average value of the two samples is the Impact Value of Aggregate. Lab Test Report Format. SI: Description: Sample 1 in grams: Sample 2 in grams: 1: Weight of dried sample (W1) 340: 360: 2: Weight of crushed particle passed through 2.36mm sieve (W2) 50: 65: 3: Impact value of Aggregate = (W2/W1) x 100: 15%: 18%:

### Aggregate Impact Value Test, Procedure, Result & Standards

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 to sudden shock or impact.

### Construction Standard CS3:2013 – Aggregates for Concrete

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

### A new practical method for determining the LA abrasion ...

Jul 16, 2014· Aggregate impact value test gives an indication of aggregate's toughness property (i.e. property of a material to resist impact) Aggregate impact values are used to classify the stone aggregates with respect to toughness property as given below. Aggregate impact value (%) Toughness Properties <10 Exceptionally tough / Strong 10 – 20 Very tough …

### AGGREGATE IMPACT VALUE TEST-10+ IMPORTANT NOTES …

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 to sudden shock or impact.

### BS :1990 - Testing aggregates. Method for ...

Strictly conforming to BS standard: Cylinder, Plunger and base hardened to 650 HV (57,8 HRC) General description The aggregate crushing value (ACV) provides relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load.

### Impact testing machine, Aggregates testing equipment, Controls

3.4.10 Aggregate Impact Value. The impact test (BS, 1990), as in the case of the compaction test (BS, 1990), has been taken out of the set of standard tests used for determining the physical properties of aggregates for assessing their suitability for use in construction applications.

### Exp 4 Aggregate Impact Value - Civil Engineers PK

The aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, which in some aggregate differs from its resistance to a slow compressive load. The test sample consists of aggregate the whole of which passes a 12.5 mm sieve and is retained on a 10 mm sieve.

### BS :1990 Testing aggregates. Method for ...

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%.

### Aggregate Impact Value (AIV) Test Machine - Mechanical and ...

Jan 09, 2018· 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. The Indian Standard CODE IS 2386 (Part IV) – 1963 is used for procedure and classification of aggregate by result.

### Impact Value of Aggregate

Feb 08, 2012· AGGREGATE IMPACT TEST TABLE 12.1 Maximom Allowable Impact Value of Aggregate in Different Types of Pavement Material/Layers Aggregate impact value, maximum, % Water bound macadam (WBM). sub-base course Cement concrete, base course (as per 151) (i) WBM base course with bitumen surfacing (ij) Built-up spray grout, base course Bituminous …

### Methods for determination of aggregate impact value (AIV ...

Mar 31, 2017· Assuming That You Are Refering to Crushing And Impact Tests of Aggregates * Crushing Test Gives Us Idea About Strength of Aggregate. * * Strength : Resistance To Gradual Loading * Impact Test Gives Us Idea About Toughness Of Aggregate. * * Tough...

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

Oct 01, 2017· Aggregate Impact Value: BSI BS (1990c) Aggregate Crushing Value: AS 1141.21 (1997) BSI BS (1990b) Micro-Deval Abrasion: AASHTO TP 58 (1999) ASTM D6928 (2010) AENOR UNE-EN 1097-1 (2011) Texas Ball Mill (Wet) AS1141.28 (2014) Country Roads Board, Victoria – Test Method 341 (National Association of Australian State Road ...

### What is the main difference between crushing test and ...

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 counter fitted to the machine automatically records the number of blows delivered to the sample.

### BS :1990 Testing aggregates. Method for ...

AGGREGATE IMPACT VALUE APPARATUS. BS 812. Consisting of: - A080-04 TEST FRAME ASSEMBLY - A080-02 CYLINDRICAL MOULD, dia. 102x50 mm, …

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

BS 1990 Testing aggregates. Method for. This British Standard a part of the BS 812 series 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. Aggregate impact value test- step by Step Procedure with . Recommended aggregate ...

### Impact and Crushing Value - PCTE

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 …

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