May 21, 2020· 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)
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.
Experiment No 4 Determination of the aggregate impact value of different coarse aggregate sampl 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...
Jan 23, 2018· AIM: To determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) - 1963. APPARATUS: 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…
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 …
Most aggregates have a relative density between 2.4-2.9 with a corresponding particle (mass) density of 2400-2900 kg/m 3 (150-181 lb/ft 3). Here, for coarse aggregates, the standard test method has been explained in ASTM C 127(AASHTO) and for fine aggregates, the standard test method has been explained in ASTM C 128 (AASHTO). [3]
This Apparatus is used to determine aggregate impact value of coarse aggregate. The hammer of the tester fall freely from 380 mm height on coarse aggregate for 15 times/15 sec.the crushed aggregate removed from the cup,then sieved and weighed.
Aggregate Impact Value Test Construction . 2017-10-4 The test sample consist of aggregates passing 12.5 has been standardized by the So they must be tested for their mm sieve and retained on 10 mm sieve and dried in an Weight of aggregate(M1), g 313.4 315.4 329.1 British Standard The aggregate impact toughness before they are used in the oven for four hours at a temperature 100C to 110C and value
The method of test covers the procedure for determining the aggregate impact value of coarse aggregates. 1.1 OBJECTIVE The objective of this experiment is to determine the aggregate impact value which provides the relative measure of the resistance of a simple to sudden shock or impact. 2.0 THEORY 2 Basically the Aggregate Impact Value (AIV) is ...
Jan 09, 2018· Aggregate Impact Value Test. AIV test is conducted to determine the Aggregate Impact Value of Coarse aggregate. 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 ...
Aug 11, 2021· 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 degree Celsius to 110 degree Celsius for about four hours. 2. The aggregates are then allowed to ...
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 ...
Jan 25, 2021· 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 limits if used shall provide better performance against gradually applied compressive load. Aggregate Crushing Value Test Form
the cleanness value. (d) Split or quarter out a test specimen conforming to the mass requirements for 1 in. × No. 4 aggregate. (e) Save the portion passing the sand equivalent. d. ½ in. maximum size aggregates (screenings, chips, pea gravel, etc.). No further preparation is required. -4
2) Impact Value Test . Result gain by this test is shown in table 4. TABLE IV. RESULT OF IMPACT VALUE TEST S No. Wt of Aggregate gm w. 1. Wt of aggregate passing through 2.36 mm sieve gm w. 2 . Impact value % 1 700 60 8.57 . 3) Crushing Test . The crushing value of aggregate is shown in table 5. TABLE V. CRUSHING VALUE OF AGGREGATE. S No.
Detailed Impact Value Test on road aggregates with the calculation of Impact value has been shown, also range of aggregate impact value is explained.
Sep 10, 2018· In experiment 7, The test is to determine the total impact value of coarse aggregates as IS: 2386 ( Part IV ) – 1963 THEORY : In experiment 6, The Testing for Loss Angles Abrasion in Machine composes a hollow through steel cylinder and closed in both ends, an inside having diam eter of 28" and an inside length 20".
Nigeria was used for the experiment as it was clean and free from impurities. 2.1.4 Coarse Aggregate (Granite): Crushed granite stone was obtained from a crushed Raton Quarry along Lagos/ Ibadan express way Ogun State Nigeria. 2.1.5 Fine Aggregate (sand): sand used for the experiment was obtained from Ogun- River in Abeokuta, Ogun
Sep 14, 2008· AGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) – 1963. 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 […]
Oct 27, 2017· Experiment Name: Determine of Aggregate Impact Value Test: BS 812 Purpose of the test: 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 …
However, the aggregates impact value of the specimen for this laboratory experiment is 32.7%, 31.5%, 33.4% and 31.3%. We repeated all the procedures for 3 more times to obtain precise average value of aggregates impact value which is 32.2%. As a result, the specimen are considered satisfactory because the aggregates impact value is more than
Aggregate impact value (AIV) 2.4.5. Water Absorption This test is the measure of aggregate To avoid acid attack and freezing and toughness. It is measured by subjecting the thawing the aggregate should be examined aggregate sample to a sudden impact of well for water absorption. repetitive free fall load.
Dec 21, 2012· > Crusher and Mill > impact value of coarse aggregate experiment; Print. impact value of coarse aggregate experiment. Posted at:December 21, 2012[ 4.6 - 1821 Ratings] Aggregate Impact Value. This test is done to determine the aggregate impact value of coarse aggregates …
Experiment DETERMINATION OF AGGREGATE CRUSHING VALUE 1. AIM 1) To determine the aggregate crushing value of coarse aggregates 2) To assess suitability of aggregates for use in different types of road pavement ... aggregate impact value is a measure of resistance to sudden impact or shock, which may
May 07, 2013· 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. Equipment & Apparatus Aggregate Impact Test Machine Sieves (12.5mm,10mm) Cylindrical metal measure Tamping Rod …
Jul 22, 2020· Procedure for Specific Gravity Test of Coarse Aggregate:-. Take clean sample of coarse aggregate (about 2 kg). The sample should be washed to remove fine aggregates. The aggregates coarser than 6.3 mm are taken. Then place the aggregate sample in the wire basket. Immerse the wire basket in distilled water, which is at a temperature of 22 ºC to ...
ASTM C 535: Resistance to degradation of large coarse aggregates by Abrasion and impact on the Los Angeles machine. Uses Of The Abrasion Test For an aggregate to perform satisfactorily on the pavement, it must be difficult enough to resist the abrasive effect of traffic for a long period of time.
fine aggregates. EXPERIMENTS VALUES OBSERVED SPECIFIC GRAVITY TEST 2.53 WATER ABSORPTION TEST 20.12% FINENESS MODULUS TEST 4.59 TESTS ON COARSE AGGREGATES Coarse aggregate are those whose size is more than 4.75 mm. Locally available crushed stones are used as coarse aggregate in this experiment. Size of aggregates varied