Six aggregates sampled from different sources were subjected to various aggregate tests, including the Los Angeles abrasion, micro-Deval, soundness magnesium, and acid insoluble tests. A Superpave mix with a 12.5-mm (1/2-in.) nominal maximum aggregate size gradation was produced with each aggregate source using the same …
AIM: Determination of Aggregate Crushing Value Crushing Strength of Coarse Aggregate. Aggregate Crushing value test IS Code is 2386-4 (1963): Methods of Test for Aggregates for Concrete Aggregate Crushing Value Apparatus 1. A 15 cm dia. 2. Steel cylinder with the plunger and base plate. …
The top surface of the measuring cylinder filled with the three layers of the sample is then levelled with the help of the tamping rod. Now the sample is poured in a pan and total weight of aggregate required to fill the measuring cylinder is weighed and recorded as W1.
The aggregate crushing value depicts how resistant an aggregate crushing is to a gradually applied compressive load. ... value and tests of UCS and PLT. The results of the Los Angles abrasion and ...
The aggregate crushing value test is conducted on coarse aggregates to determine their resistance to crushing under gradually applied compressive load. It is …
The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. ... Crushing strength of road stone may be determine either on aggregates or on …
b The aggregate crushing value (ACV) of an aggregate is the mass of material, expressed as a percentage of the test sample that is crushed finer than a 2.36-mm sieve when a sample of aggregate passing the 13.2-mm and retained on the 9.50-mm sieve is subjected to crushing under a gradually applied compressive load of 400 kN.
Learn how to test the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The test involves oven-drying, cylindrical measure, compression testing …
The ratio of the weight of fines formed to the total sample weight in each test shall be expressed as a percentage, the result being recorded to the first decimal place: Aggregate Crushing Value = (B/A) X 100 where A = weight of oven-dried sample B = weight in 'g' of fraction passing through 2.36 mm IS sieve. 6. Results
As a result, the bituminous mixture that showed the best performance was found to be the mixture whose large aggregate was basalt and fine aggregate was limestone and containing 1% lime. Karakuş [17] used waste basalts obtained from quarries in the Diyarbakir province as aggregate and filler in Stone Mastic Asphalt (SMA) mixtures.
With aggregate of aggregate crushing value 30 or higher, the result may be anomalous, and in such cases the ten percent fines value should be determined instead. Crushing value is strength of the aggregates against crushing load. Aggregates undergo crushing in road construction and road operation work. If it gets crushed easily then …
Learn how to perform the aggregate crushing value test to measure the resistance of aggregates to crushing under a compressive load. Find out the specifications, apparatus, procedure, and …
What Is Crushing Value? Aggregate Crushing Value is the relative resistance of aggregates to crushing under gradually applied compressive load. Aggregate Crushing Value Test is an important test to be performed on aggregate. The strength of aggregate parent rock is determined by preparing cylindrical shape specimens of size 25 mm …
Sampling of Aggregates. Select coarse aggregate that passes through a 12.5mm IS sieve and is retained on a 10mm IS sieve. Heat the aggregate at 100 to 110°C for 4 hours, cool it to room temperature, and ensure that the material depth in the cylinder, after tamping as described below, is 10 cm. Determine the appropriate quantity by filling …
Learn how to measure the resistance of aggregate under compression load for road construction. Find out the crushing value limits, test apparatus, procedure and lab …
Download Table | Aggregate Crushing Value Test Results from publication: The Suitability of Some Selected Granite Deposits for Aggregate Stone Production in Road Construction | The investigation ...
Abrasion Value = (W1 – W2 ) / W1 X 100 = (2900/50000) X 100 = 58. Results. Los Angeles Abrasion Value of Aggregate = 58. IS Recommended Los Angeles Abrasion Value of Aggregate for Pavements. A Los Angeles test …
The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. To achieve a high quality of pavement, aggregates possessing low aggregate crushing …
Explanation: After the impact test is conducted, the results are obtained in percentage. The aggregate is said to be exceptionally tough when the value is 10%, very tough when the value is in between 10 - 20%, good for pavement surface when the value is in between 20 – 30% and weak if the value is >35%.
1) To determine the aggregate crushing value of coarse aggregates 2) To assess suitability of aggregates for use in different types of road pavement 2. PRINCIPLE The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Crushing value is a
aggregate and crushed stone coarse and fine aggregate are produced by crushing natural stone. Crushing, screening, and washing may be used to process aggregates from either sand and gravel deposits or stone quarries. Aggregates may be produced from igneous, sedimentary, or metamorphic rocks, but geological type does not by itself make …
Aggregate crushing value = (W2 x 100) / (W1-W) W2 =Weight of fraction passing through the appropriate sieve W1-W =Weight of surface dry …
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.
The Aggregate Crushing Value gives a relative measure of the resistance of the aggregate to crushing under a gradually applied compressive load. 7.7.1.2 Scope. The particular …
Learn how to conduct the Aggregate Crushing Value test to measure the resistance of coarse aggregates to crushing under a compressive load. Find out the …
The crushing strength or aggregate crushing value of a given road aggregate is found out as per IS-2386 Part- 4. The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. To achieve a high quality of pavement aggregate possessing low aggregate crushing value should be …
Pavement construction is a complex and critical aspect of infrastructure development, and at its core lies the significance of aggregates. Aggregates, encompassing a variety of materials such as crushed stone, gravel, sand, and recycled concrete, form the foundation of pavements.Their role extends beyond mere structural support; they are …
Sieve the test material through 12.5 mm and 10.0 mm IS sieve. Take test samples of aggregates passing through 12.5 mm IS sieve and retained on 10 mm IS sieve (minimum 3 Kg).; Dry theme in an oven for 4 hours at a temperature of 100 °C to 110 °C and then cool at room temperature.