As per IS∶383 (1970), the maximum limit of aggregate crushing value for aggregates used in concrete other than wearing surfaces should be ... A 15 kg oven-dried coarse aggregate sample is subjected to an aggregate impact value test. After the test, the weight of the sample fraction passing the 2.36 mm IS sieve is 6.3 kg. What is the Aggregate ...
(i) To assess the impact value of the road aggregates; (ii) To evaluate their appropriateness in road construction on the foundation of impact value. Apparatus: The …
IS 9377 (1979): Specification for apparatus for aggregate impact value [CED 2: Cement and Concrete] IS I9377 - 1979 Indian Standard SPECIFICATION FOR APPARATUS FOR AGGREGATE IMPACT VALUE ( Second Reprint MARCH 10% ) UDC 620 ... IMPACT TESTING MACHINE 3.1 The general form and salient dimensions of machine shall be as ...
test shall be expressed as percentage of the oven dried, the result being recorded to the first decimal place: C Aggregate impact value = A X ]00 where C 11IOII weight of the fines formed, and A = weight of the oven-driedsample. 6. REPORTING OF RESULTS 6.1 The mean of the two results shall be reported as aggregate impact value (wet)ofthe tested ...
Aggregates Impact Value gives relative measure of resistance of aggregates to sudden shock or impact, which in some aggregates differs from its resistance to slow compression load. Impact Value should not be less than 45% for …
Transportation Engineering Laboratory Department of Civil Engineering IIT Roorkee TESTING CHARGES (Year 2020) (A) AGGRIGATE TESTS Name of Test Relevant Standard Codes Rate per Test (Rs.) Aggregate Crushing Value IS: 2386 (P-a) 8,000.00 Aggregate Impact Value IS: 2386 (P_-a) 8,000.00 Los Angeles Abrasion Value IS: 2386 (P-4) 8,000.00 Water Absorption …
IS 383:2016 covers Coarse and Fine Aggregate for Concrete which are categorized as under: a) Aggregates are mainly categorized into following types based on sizes as below: ... 4 Aggregate impact value - Impact testing machine [Clause 4.2 (a) and Fig 2 of (Clause 5.4.2) IS 2386 (Part 4) : 1963] - IS sieves -12.5 mm, 10 mm & 2.36 mm
1. IS 383:2016 covers Coarse and Fine Aggregate for Concrete which are categorized as under: a) Aggregates are mainly categorized into following types based on sizes as below : i) Fine …
1. A high aggregate impact value indicates strong aggregates. 2. A low aggregate crushing value indicates high crushing strength of aggregates. 3. Aggregates having elongation index values greater than 15 are generally considered suitable for pavement construction. 4. Flakiness index of aggregates should not be less than 25 for use in road ...
The abrasion value of aggregates, when tested in accordance with the method specified in IS:2386 (Part IV) - 1963 using the Los Angeles machine, shall not exceed the …
Aggregate Impact Value/Los Angles Abrasion Value (IS:383, IS:2386 Part IV) ... Water absorption of Aggregate (IS:383, IS:2386 Part 3) 1) One per source ... Aggregate Impact Test Procedure for Determining AIV as Per IS 2386 Part-4 …
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. ... 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 Testing machine ...
Aggregate Impact Value Test : Weight of stone passing 12.5mm but retained on 10mm sieve: Weight of Fraction retained on 2.36mm sieve after impact test: ... इस जांच का परिणाम IS 383 में दी गई limit में आना चाहिए|
Here are the recommended Aggregate Impact Test values and their corresponding classifications: Aggregate Impact Value Classification. Less than 20%: Exceptionally strong. ... product or project specification limits. Frequently asked questions (FAQ) If the aggregate impact value is >35%, then it is classified as not suitable for use in road ...
The limit of crushing value of aggregate as specified (in percentage) by IS:383-1970 for aggregate used for runways and such other wearing surface is. This question was previously asked in. TSPSC AEE 2018 Civil Official Paper-II ... A 15 kg oven-dried coarse aggregate sample is subjected to an aggregate impact value test. After the test, the ...
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 percentage of fine …
Aggregate impact value test gives an indication of aggregate's toughness property (i.e. property of a material to resist impact).. Aggregates to be used for wearing course, the impact value shouldn't exceed 30 per cent.. For bituminous macadam, the maximum permissible value is 35 per cent. For Water bound macadam base courses the maximum permissible value defined …
This characteristic is measured by impact value 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. ... Specified limits of percent aggregate impact value for different types of road construction by Indian Roads Congress is given below.
Aggregate Impact Test. Read definition, apparatus, IS code, procedure, observations, formula, result and lab report about aggregate impact value test.
This characteristic is measured by the impact value 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 of Aggregate Impact Test The test sample consists of aggregates sized 10.0 mm 12.5 mm. Aggregates may be dried by heating ...
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 Test Calculator. a) Weight of empty Cylindrical steel cup (W1) Gram b) Weight of Cylindrical steel cup + Aggregate (W2) Gram c) Weight of ggregate passing through 2.36 mm Sieve (W3) Gram Results: Actual Weight of Aggregate. Impact Value of aggregate. Status. Print this page.
rS : 383 - 1910 1. SCOPE 1.1 'Tltis slnndard covers the requirements un~rusl~d, derived I'rom natural sources, such for aggregates, crushed or as river terraces and river- beds, glacial deposits, rocks, l~oulders and gravels, for use in the produc- tion c,l' concrete for normal structural purposes including mass concrete
pavements. shall not exceed the following values: saturated surface dry condition) represented a) For aggregates to be used in : 30 percent by the test sample shall be continued until concrete for wearing surfaces.IS 383 : 2016 b) For aggregates to be : In case the aggregate b) For coarse aggregate : 12 percent when tested with sodium sulphate ...
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 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 110 degrees Celsius for about four hours.
The aggregate impact value shall not exceed the following values: a) For aggregates to be used in : 30 percent concrete for wearing surfaces, (such as runways, roads, pave¬ ments, tunnel lining carrying water, spillways and stilling basins) b) For aggregates to be used in : 45 percent concrete other than for wearing surfaces NOTE — For ...
To measure this characteristic, the impact value test is conducted. The test determines the aggregate's resistance to sudden impact or shock, which may differ from its resistance to gradually applied compressive load.
A- 1.2 Subject to prior agreement, the supplier shall furnish such of the following additional information, when required by the purchaser: a) Specific gravity, b) Bulk density, 12 IS 1 383. 1970 c) Moisture content, d) Absorption value, e ) Aggregate crushing value or aggregate impact value, f) Abrasion value, g) Flakiness-index, h) Elongation ...
[19,20,21,22,23] Kwek and Awang (2018) [19] Water The aggregate impact value test determines the aggregate's resistance to sudden loading [24], which may differ from the resistance to ...
