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Aggregate Impact Values and Aggregate Crushing Values are often numerically very similar, and indicate similar aggregate strength properties. Apparatus for Aggregate …
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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 / Strong. 20 – 30. Good for pavement surface course.
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Aggregate crushing value is defined as the percentage by weight of the crushed (or finer) material obtained when the test aggregates are subjected to a specified load under standardized conditions, and the strength of the aggregate used in road construction is expressed by numerical index. Aggregates with lower crushing value …
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Aggregate Impact Values (Max.) 1: Water Bound Macadam (WBM) Sub-Base Course: 50: 2: Cement Concrete, Base Course: 45: 3: i) WBM base course with bitumen surfacing: 40 : ... Aggregate Crushing Value …
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BS 812, Testing aggregates. BS 812-100, General requirements for apparatus and calibration. BS 812-101, Guide to sampling and testing aggregates. BS 812-102, Methods of sampling. BS 812-111, Methods for determination of the ten percent fines value (TFV). BS 812-112, Methods for determination of the aggregate impact value (AIV).
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IS: 9377: 1979, Specification of apparatus for aggregate impact value test Procedure of Aggregate Impact Value Test:- Take test samples of aggregates passing through 12.5 mm IS sieve and retained on 10 mm IS sieve.
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2.2.1 Applications of Aggregate Impact Value 2.2.2 Apparatus 2.2.3 Procedure 2.2.4 Observations and Calculations 2.2.5 Results 2.2.6 Comments 2.2.7 Precautions 2.3 Impact Test on Steel 2.4 Charpy Test ... aggregate impact values are numerically similar within close limits. But in the case of frne
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Aggregate Impact Value = (W2 / W1) * 100 Aggregate Crushing Value Acceptance Limits: For aggregate use to resist wear, Max 30 percent. For non-wearing surface, the value is 45 percent Max. Lower …
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Aggregate Impact Value Apparatus. 42-4005. Category: Mechanical Properties. Sub Category: N/A. Product Group: Aggregate Impact Value (AIV) The apparatus has been designed in a particularly heavy duty …
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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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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. 2.Apparatus Required Fig. 1: Balance Balance should be accurate upto 1 g Fig. 2: Sieves Seives required are 12.5, 10.0 and 2.36 mm Fig. 3: Impact ...
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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. The level and plane concrete floor of a minimum of 45 cm thickness are used to support it. See more
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UTA-0650. 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 …
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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 …
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APPARATUS The apparatus of the aggregate impact value test as per IS: 2386 (Part IV) – 1963 consists of: 7) 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. It is supported on level and plane concrete floor of minimum 45 cm thickness.
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General: Normally the aggregate impact value of base course is 30, bituminous bound macadam is about 35 and the cement concrete base course is 30. Significance: The test gives an idea of toughness of the aggregate to resist facture under the impact of moving loads. 2 OBJECTIVE. To determine the aggregate impact value in the laboratory. 3 …
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The aggregate crushing value formula is given below, Aggregate crushing value = (W3 / W) or W3 / (W2 – W1) W1 = Empty weight of cylindrical Measure. W2 = Weight of Aggregate with Cylindrical Measure. W = W2 –W1 = Weight of Aggregate Sample. W3 = Weight of crushed aggregate sample passed through 2.36 mm IS Sieve.
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Aggregate Impact Value apparatus with mould to BS812:110 . Code AG165. British Standard BS812-112. Approx. Weight (kg) 52. Tariff 90248000. Quantity . Add to Cart. Save Page to PDF. Ask a question about this Product. or …
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Aggregate Impact Value (AIV) ASTM-D58-74. Introduction: Impact value of an aggregate is the percentage loss of weight particles passing 2.36mm sieve by the application of load by means of 15 blows of standard hammer and drop, under specified test condition. The aggregate impact value gives a relative measure of the resistance of an aggregate to …
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The Aggregates Impact Value (AIV) Apparatus is used to determine the aggregate impact value which provides a relative measure of the …
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Apparatus required. Aggregate impact value machine whose weight should be between 45 kg to 60 kg. A cylindrical steel cup measuring the diameter of 75 mm and depth should be 50 mm. Another steel cup whose diameter should be 75 …
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To determine the aggregate impact value of the given specimen. 3. ... Fig.2 Aggregate impact test apparatus . 12 Theory: Toughness is the property of a material to resist impact. Due to traffic loads, the road stones are subjected to the pounding action or impact and there is possibility of
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DCC3113 DETERMINATION OF AGGREGATE IMPACT VALUE. - Download as a PDF or view online for free. Submit Search. Upload. DCC3113 DETERMINATION OF AGGREGATE IMPACT VALUE. ... 5 APPARATUS 1. Aggregate Impact Value Test Machine 2. BS test sieve 3. A metal tamping rod 4. A weighing …
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Aggregate samples obtained from the deposits were analyzed in the laboratory to determine their mechanical properties by a series of composite testing parameters using aggregate abrasion value (AAV), aggregate impact value (AIV), aggregate crushing value (ACV), specific gravity (SG) and water absorption (WA) as contained in BS812, …
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APPARATUS FOR AGGREGATE IMPACT VALUE 0. FOREWORD 0.1 This Indian Standard was adopted by the Indian Standards Institution on 20 December 1979, after the draft finalized by the Cement and Concrete Sectional Committee had been approved by the Civil Engineering Division Council. ...
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The aggregate impact test apparatus should be supported over a level and plane concrete floor or stone block. A cylindrical steel cup has an internal diameter of 102mm and a depth of 50mm. ... Aggregate impact …
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The method of test covers the procedure for determining the aggregate impact value of coarse aggregates. OBJECTIVE. To determine the aggregate impact value of a coarse aggregate. APPARATUS. 1. Aggregate impact testing machine 2. IS sieve 14mm, 10mm, 2 3. a cylindrical measure 4. rod and balance 5. Bristle brush 6. Weighing Scale …
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AGGREGATE IMPACT VALUE APPARATUS. Used to determine the impact value of aggregates and select them for a given application. The machine has a trip-action hammer release, blow counter device and a …
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Aggregates Impact Test (AIV) Introduction: Impact value of an aggregate is the percentage loss of weight particles passing 2.36mm sieve by the application of load by means of 15 blows of standard hammer and drop, under specified test condition. The aggregate impact value gives a relative measure of the resistance of an aggregate to …
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this standard, if the final value, observed or calculated, is to be rounded off, it shall be done in accordance with IS:2-1960t. 1. SCOPE 1.1 This standard covers the procedure for determining the aggregates impact value ofsoft coarse aggregate used for bases and sub-basesof road pavements. 2. APPARATUS 2.0 The apparatus shall consist ofthe ...
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