The aggregate impact value of the aggregate used in
Concept: Aggregate Impact Test: It is conducted to determine the toughness of the aggregates. For testing, the specimen passing through 12.5 mm sieve but retained on 10 mm sieve is filled in 3 layers with 25 time stamping on each layer and then hammer of 13.5 to 14 kg is dropped freely from a height of 38 cm for 15 blows.. Aggregate impact value is then the …
Aggregate
Also, weigh the fraction retained in the sieve. • Compute the aggregate impact value. The mean of two observations, rounded to nearest whole number is reported as the Aggregate Impact Value. • Aggregate impact value = (W2/W1) x 100 – Where, W1 is total weight of dry sample – W2 is weight of portion passing through 2.36 mm sieve.
Aggregate Impact Value Test Procedure as per IS …
The aggregate impact value is defined as a relative measure of the resistance of an aggregate to sudden shock or impact, which (in some …
Flakiness Index Test of Aggregate, Shape Test on Aggregate…
IS Code For Flakiness Index Test of Coarse Aggregate:- IS: 2386 (Part 1)–1963, Method of test of aggregates for formation of concrete IS: 383–1970, Specification for coarse and fine aggregate from natural source for formation of concrete
Aggregate Impact Value
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...
Determination of Aggregate Impact Value
The aggregate Impact value of given sample of coarse aggregate is ……….. The aggregate impact value should not be more than 45 percent for aggregate used for concrete other than for wearing surfaces, and 30 percent for concrete used …
Aggregate Impact Value Test
How do you calculate the aggregate impact value? The impact value is measured in the ratio between the sieved aggregate of 10mm & 2.36mm aggregates. The aggregate impact value test will be conducted as per the Indian Standard …
Impact Test on Aggregate
As per IS 283-1970 Aggregates Impact Value is defined as the ratio of weight of fines formed to weight of total sample taken and is expressed in percentage ... Table below shows the classification of aggregate with respect to aggregate impact value and limits of aggregate impact value for different types of road construction suggested by Indian ...
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.
IS 2386-4 (1963): Methods of test for aggregates for concrete, Part 4
The limits for impact value vary depending on the type of aggregate and its intended use. Here are some commonly used limits as per ASTM C131 and BS 812: Part 112: For base course and wearing course aggregates
Determination of Aggregate Impact Value – Impact Test …
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.
Recommended limits for aggegates | PDF
TABLE – ( 1 ) Recommended limits for the Physical and mechanical properties of aggregates Property (and standard which Method of test (and standard Recommended maximum limit (%by describes it) which describes it) weight) Grading Sieve analysis Ranges of sizes in table (4) (BS 882) (Bs 812) shell content Bs 812-106 Max. 10% of fine aggregate ...
DETERMINATION OF AGGREGATE IMPACT …
DETERMINATION OF AGGREGATE IMPACT VALUE (AIV) (BS 812-112) Scope: This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an …
Methodology For Aggregate Impact Value (AIV) …
The Aggregate Impact Value (AIV) test, outlined in IS 2386 Part IV, evaluates the impact resistance of aggregates. This is performed with an impact testing apparatus, using a specific procedure and sample preparation method. …
impact value as per is code of coarse aggregate limits
THE INFLUENCE OF AGGREGATE PROPERTIES ON STRENGTH OF CONCRETE, Aggregate Impact Value (AIV) ... Coarse Aggregate Grading Limits. ... Aggregate Crushing Value Ten per cent fines falue ... Go to Product Center. aggregate impact value test theory - clinkergrindingunit, AGGREGATE IMPACT VALUE This test is done to determine the …
Aggregate Abrasion Value
AGGREGATE ABRASION VALUE This test helps to determine the abrasion value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The apparatus used in this test are Los Angles abrasion testing machine, IS Sieve of size – 1.7mm, Abrasive charge – 12 nos. cast iron or steel spheres approximately 48mm dia. and each weighing between 390 and 445g ensuring that the …
[Solved] As per IS 383-1970, the crushing value of an aggregate …
Explanation: Crushing test: This test is carried out to assess the strength of coarse aggregate when a compressive load is gradually applied.; Aggregate crushing value = (W 2 /W 1) × 100 where, W 1 = Total weight of the dry sample . W 2 = weight of material passing through 2.36 mm IS sieve. The aggregate crushing value for the surface course should be within 30% and …
Aggregate Impact Value and Its Significance in Construction
The apparatus, as per IS: 2386 (Part IV) – 1963, consists of: 1. Testing Machine. Weighing 45 to 60 kg. ... The Indian Roads Congress provides specified limits of the percent Aggregate Impact Value for different types of road construction. These values ensure that the aggregates used are appropriate for the intended purpose, thereby ...
Enhancing the aggregate impact value and water …
Two particle sizes of crushed limestone coarse aggregate (NA) were used throughout this study, 20/10 mm, and 10/4 mm. ... utilized throughout this study was an un-densified silica fume with a commercial code 971 U and was to the conformity of BS EN 13263–2:2005 +A1:2009 ... Aggregate impact value (AIV) and water absorption (WA) were …
Aggregate Impact Value IS: 2386 (PART-4)
The apparatus shall consist of the following: Impact testing machine of the general form shown in Fig.; Sieves-The IS Sieves of sizes 12.5, 10 and 2.36 mm.; Measure - A cylindrical metal measure, tared to the nearest gram, of sufficient rigidity to retain its form under rough usage, and of the following internal dimensions :
IMPACT VALUE OF 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 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 ...
Aggregate Crushing Value Test – Procedure, Result
Aggregate Crushing value test IS Code is 2386-4 (1963): ... Aggregate Crushing Value Limits for Road Pavement. ... Specific Gravity and Water Absorption Test of Coarse Aggregate; Aggregate Impact Value Test, Procedure, Result & Standards ;
SPECIFICATION FOR AGGREGATE AS PER INDIAN …
COARSE AGGREGATE – Aggregate most of which is retained on 4.75mm IS sieve and contains only so much finer material as is permitted. ... The aggregate impact value shall not exceed 45% by weight of aggregate used for …
PRODUCT MANUAL FOR COARSE AND FINE …
4 Aggregate impact value (Clause 5.4.2) IS - Impact testing machine [Clause 4.2 (a) and Fig 2 of 2386 (Part 4) : 1963] - IS sieves -12.5 mm, 10 mm & 2.36 mm - Cylindrical metal of dia- 75 mm and Depth 50 mm - Tamping rod rod - Weighing balance - …
DETERMINATION OF AGGREGATE CRUSHING VALUE
Aggregate impact value is used to classify the stones in respect of their toughness property as indicated below in Table 1. Table 1: Classification of aggregate based on aggregate impact value Aggregate impact value (%) Quality of aggregate < 10 Exceptionally strong 10 – 20 Strong 20 – 30 Satisfactory for road surfacing
IRC 129 2019 Cover
Strength Los Angeles Abrasion Value IS:2386 (Part-4) <30% Aggregate Impact Value IS:2386 (Part-4) <15% Polishing Polished Stone Value IS:2386 ... 4.1 The combined grading of the coarse aggregate and fine aggregate shall be within the limits shown in table 2. 4.2 The OgFC mix will be designed using ASTM D 7064M-08 ...
Aggregate Impact Value Test as per IS 2386 (Part …
Aggregate Impact Value Test as per IS 2386 (Part-IV) 1993. 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 …
IRC:109-2015
If the water absorption value of the coarse aggregates is greater than 2 percent, soundness . test shall be carried out on the material as per IS:2386 (Part V) with sodium sulphate which ... Test Test Method: Requirements: 1. *Los Angeles Abrasion Value or IS:2386 (Part IV) 40 percent (Maximum) *Aggregate impact Value: IS:2386(Part IV) or IS ...
IMPACT VALUE OF 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 compressive …
PRODUCT MANUAL FOR COARSE AND FINE …
aggregate reaction test as per clause 5.6 } 3. List of Test Equipment : Please refer ANNEX ... Coarse aggregate: Single Size – 10 mm, 12.5 mm, 16 mm, 20 mm, 40 mm & 63 mm ... 4 Aggregate impact value - Impact testing machine [Clause 4.2 (a) and Fig 2 of