May 01, 2003 · This test method covers the determination of percent of particles which, by visual inspection, have the essential characteristics of crushed aggregates. 1214.2 SIGNIFICANCE and USE The specifications and special provisions contain requirements for percentage of crushed particles, with the purpose of maximizing shear strength in either

Aggregate Test Procedure – The Quality Guru

Aggregate Impact value Test Apparatus, Procedure and uses

Procedure of Aggregate Impact value test The test sample: normally aggregates sized 10.0 mm to 12.5 mm. the aggregates should be dried by heating at 100-110 0C for a period of 4 hours and cooled. Sieve the material through 12.5mm and 10.0 mm IS sieves. The aggregates passing through 12.5 mm sieve comprises the test material.

Aggregate Crushing Value Test In Concrete

Aggregate crushing value test determine.Concept and significance of the aggregate crushing value test the aggregate crushing value test gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load aggregate crushing value is defined as the percentage by weight of the crushed or finer material obtained when the test aggregates are.

California Test Methods (CTM) | Caltrans

Method of Test for Micro-Recovery of Asphalt from Bituminous Core Slices and Small Samples of Loose Asphalt-Aggregate Mixtures (Test method has been deleted) Guadalupe Magana (916) 227-7302 [email protected] : 366 (PDF) January 1, 2000: Method of Test for Stabilometer Value (Undergoing ADA remediation.

However, should this test be required to be performed BS 812

2 Standard Test Method . 2.0 The test will be performed in duplicate on the material passing the 14mm sieve and retained on the 10.0mm sieve. 2.1 The aggregate used in this test will have been obtained from a bulk sample that was initially taken and prepared in the manner described in BS EN 932-1:1999.

Aggregate Crushing Value - Civil Engineering

The apparatus used is Cylindrical measure and plunger, Compression testing machine, IS Sieves of sizes – 12.5mm, 10mm and 2.36mm. Procedure to determine Aggregate Crushing Value i) The aggregates passing through 12.5mm and retained on 10mm IS Sieve are oven-dried at a …

Aggregate Impact value test procedure | Civil4M

Jan 25, 2018 · AGGREGATE IMPACT VALUE TEST AIM: To find Impact value of the given aggregate sample. APPARATUS The apparatus consists of an impact-testing machine, a cylindrical measure, tamping rod, IS sieve, balance, tamping rod and oven. PROCEDURE The test sample consists of aggregates passing 12.5 mm...


California Test 227 June 2012 G. TESTING PROCEDURES 1. Measure out the appropriate volume of water for the test specimen according to Table 1. 2. Wash the prepared test specimen according to the appropriate procedure below: a. 2½ in. × 1½ in. aggregate. (1) Pour the wash water into the washing pan.

Aggregate Crushing Value and 10% Fines Value.pdf - Chapter

Chapter 7 Standard Test Procedures Tests For Aggregates And Bricks MAY 2001 Page 7.35 Results. Calculate the mean of the two values determined to the nearest whole number. Report the mean as the Aggregate Crushing Value, unless the individual results differ by more than 0.07 times the mean value. In this case repeat the test on two further specimens, calculate the median of the four ...

Aggregate Impact Value Test Procedure, IS 2386 Part 4-1963

Procedure of Aggregate Impact Value Test:- Take test samples of aggregates passing through 12.5 mm IS sieve and retained on 10 mm IS sieve. Dry theme in an oven for 4 hours at a temperature of 100 °C to 110 °C and then cool at room temperature.

Aggregate Impact Value Test as per IS 2386 (Part-IV) 1993 - L

Aug 29, 2019 · 9. Remove the crushed aggregates from the cup and sieve it through 2.36 mm IS sieve until no further significant amount passes in one minute. Weigh the fraction passing the sieve (W2) to an accuracy of 1 gram. Compute the aggregate impact value. The mean of 2 observations, rounded to nearest whole number is reported as the aggregate impact value.

Aggregate Crushing Value Test - L & T - Learning Technology

The aggregate crushing value is a numerical index of the resistance of an aggregate to crushing under a gradually applied compressive load. It is expressed as the percentage by mass of the crushed (or finer) material obtained when the test sample is subjected to a specified load under standard conditions.


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. 3. APPARATUS The apparatus of the aggregate impact value test as per IS: 2386 (Part IV) – 1963

ASTM D5821 - 13(2017) Standard Test Method for Determining

1.1 This test method covers the determination of the percentage, by mass or by count, of a coarse aggregate sample that consists of fractured particles meeting specified requirements. 1.2 The values stated in SI units are to be regarded as the standard.