Dec 13, 2012 · > Mining Equipment > determination of aggregate impact value discussion and conclusion; Print. determination of aggregate impact value discussion and conclusion. Posted at:December 13, 2012[ 4.5 - 3634 Ratings] ... Part 112 : Methods for determination of
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Feb 22, 2010 · 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 of 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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Aggregate Impact Value Calculations The ratio of the weight of fines formed to the total sample weight in each test shall be expressed as a percentage, the result being recorded to the first decimal place. Aggregate Impact Value Aggregate Impact Value = (B/A)*100 where A = weight of oven dried sample Aggregate Impact Value
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Conclusion Average of Impact Value of Aggregate = 16.5% Now the tested aggregates are passed to be used in construction work. The recommend aggregate Impact value is given in the below table Test Illustration Video Video Courtesy – NCTEL The aggregate impact value lower than 50% not recommended for construction & it should be avoided at any cost.
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The aggregate impact value test 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) is the percentage of fines produced from the aggregate sample after subjecting it to a
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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
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Aug 29, 2013 · AGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) ? 1963. conclusion aggregate impact value test – kefid mining Milling is also known as grinding, it is a material more refining process.
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Dec 13, 2012 · ASTM D5874 – 02(2007) Standard Test Method for Determination . 1.1 This test method covers the determination of the Impact Value (IV) D2922 Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods »More detailed
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Oct 27, 2017 · The 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. AIV gives A relative measure of the resistance of an aggregate to sudden impact, which is differs from withstand to slowly applied ...
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The Aggregate Impact Value (AIV) (M2/M1)x100 19.17 % 23.17 %. AIV = M2/M1 * 100%. 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.
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Aggregate Impact Value Classification 35% Weak for road surfacing CONCLUSION After successfully getting all the data, we have made some calculations by using the proper formula to get the right Aggregate Impact Value for the aggregates that we use in the test.
Chat OnlineJan 23, 2018 · Aggregate Impact Value Tester IS : 2386 (Part-IV) i) Impact testing machine conforming to IS: 2386 (Part IV) – 1963. ii) IS Sieves of sizes – 12.5mm, 10mm and 2.36mm. iii) A cylindrical metal measure of 75mm dia. and 50mm depth. iv) A tamping rod of 10mm circular cross section and 230mm length, rounded at one end. v) Oven. PREPARATION OF ...
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Jul 01, 2019 · 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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Aug 29, 2013 · conclusion aggregate impact value test – CGM mining application. Aggregate Impact Value. AGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse and 230mm length, rounded at one end and Oven.
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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.
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2500−1990 ACV = × 100 2500 = 20.4 % Result: Aggregate crushing value = 20.4% Result Analysis: 1. The value is higher when more percentage of aggregates crush and break into smaller pieces which indicates the aggregates are of a lower quality. 2.
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Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load. 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.
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The cup is fixed firmly in position on the base of the M1 - (M2+M3) 1.0 g 1.9 -1.7 -0.8 the aggregate impact value and more the aggregate impact value less is the hammer machine and the whole of the test sample from 2 32.7 31.5 33.4 To determine the aggregates toughness of the road aggregates and the cylindrical measure is transferred to the cup.
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Dec 03, 2016 · where \(S_{1}^{2}\) = variance of the first sample and \(S_{2}^{2}\) = variance of the second sample. The degree of freedom for the numerator is n 1 − 1, and for the denominator is n 2 − 1. Typically one-tailed, the F test refers to the F-distribution.If the computed F value is greater than a critical value from the F-distribution, then at least one of the coefficients is not equal to zero.
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Specific gravity and water absorption of a coarse aggregate lab report are prepared after calculating the above values. IS Reccomanded Values. The specific gravity of coarse aggregate as per is code is 2.5 to 3. The water absorption of aggregate ranges from 0.1 to 2%.
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The aggregate crushing value conclusion aggregate impact value test has been serving the aggregate crushing and grinding industry for over 20 years Get Price/Info . Topic aggregate crushing value test report discussion Determination Of Aggregate Impact Value Discussion And Conclusion. conclusion aggregates impact value .
Chat OnlineDiscussion AIV is used for the determination of the toughness of aggregates. 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.
Chat OnlineThe Aggregate Impact Value (AIV) (M2/M1)x100 19.17 % 23.17 %. AIV = M2/M1 * 100%. 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.
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Aggregate impact value report conclusion Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Aggregate impact value report conclusion, quarry, aggregate, and different kinds of minerals.
Chat OnlineAggregate Impact Value Classification 35% Weak for road surfacing CONCLUSION After successfully getting all the data, we have made some calculations by using the proper formula to get the right Aggregate Impact Value for the aggregates that we use in the test.
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3.2.3.6 Aggregate Impact Value test as per IS: 2386- 4 (1963) This test was performed to determine the aggregate impact value of coarse aggregates. Impact testing machine was used. Cup of the machine was firmly fixed. Sample was placed in it and compacted with the help of tamping rod. 15 blows of hammer were given from 380 mm height.
Chat OnlineDETERMINATION 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
Chat OnlineThe 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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aggregate crushing value test report discussion. 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
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The procedure of the impact value test includes the following series of steps: 1. The aggregate samples of size 10mm to 12.5mm (passing through 12.5mm sieve and retained on 10mm sieve) are first taken and oven-dried at a temperature ranging from 100 degrees Celsius to
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The aggregates crushing value test should be performed as per IS code 2386 Part IV. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. Now fill the aggregate in the mould along with the plunger on top.
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Experiment No. 4: Determination of the aggregate impact value of different coarse aggregate samples. (BS 812) Scope & significance: Aggregate Impact Value... Get Price. Aggregate Crushing Value test – we civil engineers. ... 2014 aggregate crushing value test discussion conclusion for aggregate ... Conclusion: 4 Experiment Name of ...
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Aug 29, 2019 · To evaluate the toughness of a stone i.e. the resistance of the aggregates to fracture under repeated impacts is called Impact Test.This test is done to determine the aggregate impact value of coarse aggregate as per IS 2386 (Part-IV) 1993. Aggregate Impact Value
Chat OnlineAug 23, 2014 · British Standards Institution (1990) BS 812:112: Testing aggregates. Methods for determination of aggregate impact value (AIV). BSI, Chiswick. Erichsen E, Ulvik A, Wolden K, Neeb P-R (2008) Aggregates in Norway—geological properties defining the quality of sand, gravel and hard rock for use as aggregate for building purposes.
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Dec 21, 2012 · Feasibility of Quantifying the Role of Coarse Aggregate Strength . Research Project 0-5268-2 The Role of Coarse Aggregate Point and Mass Strength on Resistance to Load Figure 5.1 – Aggregate Impact Value Machine »More detailed
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