Determination of aggregate impact value and ten percent fines value (TFV) ILT CODE: ILT-U-1605 Category: Construction. Description: Aggregate Impact Value AIV (Dry): Aggregate Impact Value AIV (Wet); Ten Percent fine value TFV (Dry); and Ten Percent fine value TFV (Wet) Method: BS 812 Part 111, BS 812 Part 112
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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 coarse aggregates.
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DETERMINATION OF AGGREGATE IMPACT VALUE 1. AIM 3) To determine the impact value of the road aggregates 4) To assess suitability of aggregates for use in different types of road pavement 2. PRINCIPLE The property of a material to resist impact is known as toughness. Due to movement
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DETERMINATION OF AGGREGATE IMPACT VALUE. AIM: (i) To determine the impact value of the road aggregates; (ii) To assess the toughness property and their suitability in road construction on the basis of impact value. THEORY: The property of a material to resist impact is known as toughness. Due to movement of vehicles on the road the aggregates are subjected to impact resulting in their breaking
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Aggregates, Cement and concrete technology, Impact testing, Mechanical testing, Test equipment, Specimen preparation, Test specimens, Testing conditions, Reproducibility Methods which give a relative measure of the resistance of an aggregate to sudden shock or impact. ; Specifies methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance
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Aggregate Impact Value: BSI BS 812-112 (1990c) Aggregate Crushing Value: AS 1141.21 (1997) BSI BS 812-110 (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
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The aggregate impact value is the proportion of the sample that passes a 2.36 mm sieve after the hammer impacts. European Standards will not contain the 10 per cent fines test or the aggregate impact value test (although a different impact test, the German Schlagversuch test, has been included).
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Aggregate impact value Calculation And uses SlideShare . Aggregate impact value Calculation And uses 1 Created by Shahryar CO 2 This test is done to determine the aggregate impact value of coarse aggregates AIV is basically a ratio of 2 36mm sieved aggregate to 14mm aggregate sieve The apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine Sieves
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The general test procedure of the aggregate impact value test is briefly described below: Objectives of Impact Test. 1. To assess the suitability of the aggregate to be used in the highway pavement. 2. To determine the aggregate impact value. Apparatus Required. 1. An impact testing machine weighing between 45kgs to 60 kgs with a metal base. 2.
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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 the fraction passing through 2.36 mm IS sieve.(220 gm)
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Crush samples having an impact value of 12.5% fall in the category of 10-20%, therefore, the aggregate test sample is classified as strong and can be seen in the table below. The aggregate impact value is useful for selecting the good aggregates for road construction. Aggregate appropriate for cement wearing course should have maximum AIV of 30%.
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Testing aggregates
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. dcc3113 determination of aggregate impact value. 1.
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The apparatus of the aggregate impact value test consists of: A testing machine weighing 45 to 60 kg and having a metal base with a plane lower surface of not less than 30 cm in diameter. Level and plane concrete floor of minimum 45 cm thickness are used to support it. The base of the machine should also have provisions for fixing its base.
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TESTING AGGREGATES. PART 112: METHODS FOR DETERMINATION OF AGGREGATE IMPACT VALUE (AIV) This Part of BS 812 has been prepared under the direction of the Cement, Gypsum, Aggregate and Quarry Products Standards Policy Committee. It forms part of a revision of clause 6 of BS 812 : Part 3 : 1975 which is withdrawn.
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Impact test – Determination of aggregate Impact value. Sreepriya R. 30 March 2021. Impact test on aggregate is determines the ability of an aggregate to withstand sudden loads. Aggregates are the significant factor that contributes adequate strength to concrete. Therefore it is important to obtain the right quality aggregate for construction.
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dcc3113 determination of aggregate impact value. 1. 1 civil engineering deparment dcc 3122 highway lab report title determination od aggregate impact value course / session dcc 3122 – geotechnic and highway laboratory prepare by group group a group members 1.
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Significance Of Determination Of Aggregate Crushing. Determination of aggregate crushing value , determination aggregate crushing value theory
a) Determination of Aggregate Crushing \‘alue, b) Determination of the 10 percent Fines Value, c) Determination of Aggregate Impact Vaiue, d) Determination of Aggregate Abrasion Value, e) Determination of the Polished Stone Value, and f) Determination of Crushing Strength. 2.
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dcc3113 determination of aggregate impact value. 1. 1 civil engineering deparment dcc 3122 highway lab report title determination od aggregate impact value course / session dcc 3122 – geotechnic and highway laboratory prepare by group group a group members 1.
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Significance Of Determination Of Aggregate Crushing. Determination of aggregate crushing value , determination aggregate crushing value theory - crusher south africa conclution of determination of aggregate impact value test details , significance of the aggregates having good resistance to abrasion and so on in the, the total aggregates that we have taken aggregate crushing value provides a
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In this video , we will see the procedure of determining aggregate impact value as per IS 2386 PART4.
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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.
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Determination of impact value SCOPE : The aggregate impact value provides the property of a relative 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.
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DETERMINATION OF AGGREGATE IMPACT VALUE 1. AIM 3) To determine the impact value of the road aggregates 4) To assess suitability of aggregates for use in different types of road pavement 2. PRINCIPLE The property of a material to resist impact is known as toughness. Due to movement
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8 Flakiness index of aggregate 9 Impact test 13 Determine the test on Specific Gravity 14 Determination of penetration value 15 Determination of softening point test 16 Determination of ductility of bitumen 17 Determination of viscosity 18 Determination of bitumen by centrifuge extractor 19 Determination of bitumen by marshall method.
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BS 812-112, 1990 Edition, June 29, 1990
Aggregate impact value Calculation And uses SlideShare . Aggregate impact value Calculation And uses 1 Created by Shahryar CO 2 This test is done to determine the aggregate impact value of coarse aggregates AIV is basically a ratio of 2 36mm sieved aggregate to 14mm aggregate sieve The apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine Sieves
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TESTING AGGREGATES. PART 105: METHODS FOR DETERMINATION OF PARTICLES SHAPE. SECTION 105.2: ELONGATION INDEX OF COARSE AGGREGATE. This Section of BS 812 prepared under the direction of the Cement, Gypsum, Aggregates and Quarry Products Standards Policy Committee, is a revision of 7.4 of BS 812: Part 1 : 1975 which will be deleted by amendment.
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Significance Of Determination Of Aggregate Crushing. Determination of aggregate crushing value , determination aggregate crushing value theory
• Indian Road Congress (IRC) has specified the maximum value of 25% for aggregates to be used in bituminous road construction. • Generally, the stripping value less than 5% is preferred for road aggregates. • The maximum value suggested by IRC is 10% for aggregates used in open graded premix carpet.
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Significance Of Determination Of Aggregate Crushing. Determination of aggregate crushing value , determination aggregate crushing value theory
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
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The aggregate impact value is the proportion of the sample that passes a 2.36 mm sieve after the hammer impacts. European Standards will not contain the 10 per cent fines test or the aggregate impact value test (although a different impact test, the German Schlagversuch test, has been included).
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Determination of impact value SCOPE : The aggregate impact value provides the property of a relative 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.
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