Aggregate impact value is the measure of the resistance of an aggregate to sudden shock or impact This test is conducted to determine the toughness of aggregates This test helps to evaluate the quality of aggregates which can be used in road construction The specifications for this test are given in IS 2386 Part IV 1963 mechanical properties
title of experiment aggregate impact test date of experiment 17 october 2021 group 3 group members 1 nur asmahamizah binti zailani 2019264142 2 siti fatimah binti ishak 2019239258 3 muhammad amirul adzim bin ahmad nizam 2019442756 lecturer sir mohd firdaus bin mohd akhbar level of openess 0 1 introduction
Contact info The Professor in Charge Transportation Engineering Laboratory Department of Civil Engineering Indian Institute of Technology Kanpur INDIA 208016
·Aggregate strength testing Strength tests are used to assess the suitability of aggregate for use in road stone or concrete They are indicator tests measuring the likely rather than the actual performance of aggregate Aggregate Impact Value AIV this is the measurement of the aggregates resistance to repeated and sudden force
·Strength d Materids and Soil Mecha cs Theory The test consists in forcing a steel ball of diameter D under a load F into the specimen and measuring diameter d of the impression Left in the surface after removal of the load as shown in Figure A a kd 0 v Ib Figure BrineU Hardnes Test Brinell Hardness HB = Test load F
· Impact Test of Aggregate The aggregate impact test was done as per the IS 2386 Part IV 1963 standard For aggregate impact value the aggregates need to pass through a mm sieve and be retained on a 10 mm IS sieve There are notable differences in the results between natural coarse aggregate NCA and crushed brick aggregate CBA
The Aggregates Impact Value AIV Apparatus is used to determine the aggregate impact value which provides a relative measure of the resistance of an aggregate to sudden shock or impact MORTAR STRENGTH PHYSICAL AND CHEMICAL PROPERTY OF CEMENT AND BUILDING LIME GROUT AND MUD TESTS OF CEMENT CONCRETE FRESH AND HARDENED
Engineering structures are at great risk of impact loads such as collisions with vehicles and ships As the most common type of construction the behavior of reinforced concrete structures under impact loading has been a subject of extensive research for many decades examples of experimental investigations for RC beams are listed in Table common feature among these
·Six 6 samples of shale and five 5 water samples from hand dug wells and boreholes from different locations within the Abakaliki shale formation have been assessed to evaluate the impact of
·Aggregate Shape Test Objective To determine the combined flakiness and elongation Index of the given coarse aggregate sample IS Standards used IS 2386 Part I 1963 Reaffirmed 2007 Need and scope Definition of Combined Flakiness and Elongation Index It is the sum of the flakiness index of a given aggregate sample and the elongation index of the non
·IS 2386 Part IV 1963 Apparatus The apparatus for the standard test shall consist of following a A 15 cm diameter open ended steel cylinder with plunger and base plate of the general form and dimensions shown in Fig 1
·Experiment DETERMINATION OF AGGREGATE CRUSHING VALUE 1 AIM 1 To determine the aggregate crushing value of coarse aggregates 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
·3 3 OBJECTIVES To assess their suitability inroad construction on the basis of impact value This test is done to determine the aggregate impact value of coarse aggregates Many tests have been developed toempirically characterize aggregate properties without necessarily strong relationships to the performance of final products incorporating an aggregate
·Aggregate Impact Value percent = W2 / W1 × 100; Take the mean of two observations rounded to the nearest whole number as the Aggregate Impact Value Observations and Results The observations in the Impact Test are recorded including the total weight of the dry sample W1 gm weight of portion passing the mm sieve W2 gm and
·Procedure of Impact Test The procedure of the impact value test includes the following series of steps 1 The aggregate samples of size 10mm to passing through sieve and retained on 10mm sieve are first taken and oven dried at a temperature ranging from 100 degrees Celsius to 110 degrees Celsius for about four hours
·Aggregate strength testing Strength tests are used to assess the suitability of aggregate for use in road stone or concrete They are indicator tests measuring the likely rather than the actual performance of aggregate Aggregate Impact Value AIV this is the measurement of the aggregates resistance to repeated and sudden force
Experiment No Date AGGREGATE IMPACT TEST AIM Determination of Aggregate Impact Value INTRODUCTION The road aggregate are subjected to impact of traffic loads The aggregate impact test is designed to evaluate the toughness of the road aggregate i their resistance to fracture under repeated impacts
·Two tests shall be made 5 calculation The ratio of the weight of fines formed to the total sample weight in each test shall he expressed as a percentage the result being recorded to the first decimal place Aggregate Impact Value = B/A X 100 where A = weight in g of saturated surface dry sample
·EXPERIMENT 2 AGGREGATE IMPACT TEST IS 2386 PART IV 1963 CONCEPT AND SIGNIFICANCE OF THE TEST 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 down into smaller pieces
·Crushing test and Impact test are very important to estimate strength and toughness characteristics of the road aggregate Extensive experimental procedures and different sets of equipment are required for these types of aggregate testing Therefore the objective of the study is to investigate whether the light compaction test can be a
·The Charpy impact test just like any impact testing method determines the toughness of materials by measuring the amount of energy absorbed by a specimen as it fractures while being struck by a
·Procedure of Impact Test The procedure of the impact value test includes the following series of steps 1 The aggregate samples of size 10mm to passing through sieve and retained on 10mm sieve are first taken and oven dried at a temperature ranging from 100 degrees Celsius to 110 degrees Celsius for about four hours
·An experimental database is compiled on the response of concrete elements to high speed projectile impacts which is used to identify the critical failure modes of concrete under impact loads spalling scabbing penetration and perforation of the targeted specimens and the parameters influencing the impact resistance of concrete velocity mass and shape of
·The strength of coarse aggregates is assessed by aggregates impact test The aggregate impact value provides are lative measure of resistance tocrushing under a gradually applied compressive load To achieve a high quality of pavement lower aggregate impact value should be preferred Toughness is the property of a material to resistimpact
