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IMPACT VALUE OF AGGREGATE. Objective. The aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, which in some .The aggregate impact value indicates a relative measure of the resistance of aggregate to a sudden shock or an impact, which in some aggregates differs from its resistance to a slow compressive load. The method of test covers the .This lab report summarizes an experiment to determine the aggregate impact value (AIV) of a sample. The AIV test subjects aggregate samples to standard impacts from a dropping weight to assess their resistance to shock or impact.LAB 4 - Aggregate Impact Test - Free download as PDF File (.pdf), Text File (.txt) or read online for free. aggregate impact test lab report.
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 slowly .
This document provides instructions for performing an aggregate impact value test in a civil engineering technology laboratory. The objectives are to determine the aggregate impact value and measure the weight retained on a 2.36mm sieve.
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. (i) Sieve the material through 12.5 mm and 10.0mm IS sieves. The aggregates passing through 12.5mm sieve and retained on 10.0mm sieve comprises the test material.
5. The aggregate is transferred from the cylindrical measure to the cup in 3 layers and each layer is compacted by tamping in 25 strokes with a tamping rod. 6. The hammer is released to free fall on the aggregate. Test samples are subject to . 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 .
AIV Test Lab Report. Also, Read: Laboratory Test on soil – Procedures and Objective Aggregate Impact Value Limits As Per IS code: Aggregates are essential ingredients for making concrete, and the properties of concrete are substantially affected by various characteristics of the aggregates used.LAB 4 - Aggregate Impact Test - Free download as PDF File (.pdf), Text File (.txt) or read online for free. aggregate impact test lab report
If the aggregates are weak, the stability of the concrete structure is adversely affected. The strength of coarse aggregates is assessed by Aggregate Impact Value test. The aggregate impact value provides a relative measure of resistance to sudden shock or impact. APPARATUS 1. Aggregate impact testing machine 2. Cylindrical mould 3. Tamping rod 4.
This document describes a test method for determining the aggregate impact value (AIV) of aggregates, which provides a measure of their resistance to sudden shock or impact. The test involves compacting aggregate samples in a steel cup and subjecting them to 15 blows from a hammer. The crushed material is then sieved and the percentage passing a 2.36mm sieve is . The Los Angeles test is a measure of degradation of mineral aggregates of standard gradings resulting from a combination of actions including abrasion or attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres. The Los Angeles (L.A.) abrasion test is a common test method used to indicate aggregate toughness . 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. The level and plane concrete floor of a minimum of 45 cm thickness are used to support it. The base of the machine should also have provisions for fixing its .
See full PDF download Download PDF. Related papers. TRANSPORTATION ENGINEERING LAB MANUAL 2013 DETERMINATION OF AGGREGATE CRUSHING VALUE. satish kumar. . 1.0 AGGREGATE IMPACT VALUE TEST 1.0 INTRODUCTION Aggregates used in road construction, should be strong enough to resist crushing under traffic wheel loads if the . 2. General Test Procedure of Impact Test of Aggregate The general test procedure of the aggregate impact value test is briefly described below: Objectives of Impact Test. 1. To assess the suitability of the aggregate to be used in the highway pavement. 2. To determine the aggregate impact value. Apparatus Required. 1. An impact testing machine .The material for the standard test shall consist of aggregate passing a 12.5 mm IS Sieve and retained on a 10 mm IS Sieve, and shall be thoroughly separated on these sieves before testing. 2. The aggregate shall be tested in a surface-dry condition. . Aggregate Crushing Value Test 8. Download Download PDF. Author: CC Created Date:
The average aggregate crushing value (ACV) and the aggregate impact value (AIV) obtained from the evaluations is 28.7% and 29.5% respectively and are within the acceptable standard limits. The specific gravity and water absorption gave average values of 2.60 and 0.22% respectively while the flakiness index obtained from the analysis is 26.7%. Canadian Council of Independent Laboratories September 2019 RESISTANCE TO DEGRADATION OF COARSE AGGREGATE BY ABRASION AND IMPACT IN THE LOS ANGELES ABRASION MACHINE L S-603 R33/C131/C131M – 14/C535 - 16 Page 2 of 7 5.3 Control Chart Use: The percent loss of the last 20 samples of reference material shall beresist their disintegration due to impact. 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. Apparatus: 1. Impact Testing Machine: Impact testing machine conforming to IS: 2386 (Part IV) -Flakiness and elongation test lab report . Read More: Aggregate Impact Value Test, Procedure, Result & Standards What is Flakiness Index? “The flakiness . – 1963 PDF. Apparatus The balance used to measure the aggregate has sufficient capacity. It accuracy is 0.1% of the weight of the test sample. The metal gauge used to measure the .
In this laboratory, aggregate impact values test is conducted to measure the impact value of. aggregate that need for the construction of highway pavement and concrete structure. Other . LAB Report Aggregate Impact TEST. .IS 2386(Part 1):1963 Methods of Test for Aggregates of Concrete- Particle Size and Shape. Reaffirmed-Dec 2016 4. Procedure 1. A quantity of aggregate shall be taken sufficient to provide the minimum number of 200 pieces of any fraction to be tested. 2. The sample shall be sieved with the sieves specified in Table 1: Size of Aggregatelab report highway engineering laboratory ecg344 lab october 2021 february 2022 title of experiment aggregate impact test date of experiment 17 october 2021. Skip to document. University; High School; Books; Discovery. . Aggregate Impact TEST LAB Report. lab report. Course. Civil Engineering (EC110) 475 Documents. Students shared 475 .TRANSPORTATION ENGINEERING LAB MANUAL 2013 . 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 surface of not less than 30 cm in diameter. It is supported on level and plane concrete
A.5 Calculation and expression of results Follow the general procedure described in clause 8. A.6 Test report The test report shall contain the information specified in clause 10 with additionally, the size of the aggregate tested, and if smaller than the definitive apparatus, the nominal size of the cylinder used in the test.86556593 Aggregate Impact Value - Free download as PDF File (.pdf), Text File (.txt) or read online for free. The document describes the process to determine the aggregate impact value in the laboratory. Samples of aggregate sized 12.5-9.5mm were weighed and placed in a cylindrical cup. A hammer was dropped from a height of 38cm onto the aggregates 15 times.
The aggregate impact value test is done to test the compressive strength of aggregate when sudden and immediate impact force acted on it. It is expressed in . Final report of aggregate impact value test. Weight of oven dried aggregate sample (A) = 332.8 gm. . Free PDF; Popular Calculator. Concrete Mix Design; Rebar Weight Calculator;
To perform various laboratory tests on aggregate. 3. To perform various laboratory test on bitumen. 5 Do’s 1. Bring observation note books, lab manuals and other necessary things for the . Fig.2 Aggregate impact test apparatus . 12 Theory: Toughness is the property of a material to resist impact. Due to traffic loads,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 . 5.1 Impact Value, as determined using the standard 4.5 kg (10 lbm) hammer, has direct application to design and construction of pavements and a general application to earthworks compaction control and evaluation of strength characteristics of a wide range of materials, such as soils, soil aggregates, stabilized soil and recreational turf. Impact Value is .Reduce laboratory samples to test portions of sufficient mass to produce 3 specimens of 14 mm to 10 mm size fraction. Table 7.6.1. Guide to minimum mass of test portions required to obtain a suitable mass of material to determine the aggregate impact value Grade of the aggregate Minimum mass of test portion All-in aggregate 40 mm max. size
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aggregate impact test lab report pdf|aggregate impact test is code