TRANSPORTATION ENGINEERING LAB MANUAL 2013 DETERMINATION OF AGGREGATE

AIM 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 measure of the ...

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7 LAB TESTS ON AGGREGATE TO CHECK QUALITY FOR …

In construction, ensuring the quality and durability of materials is critical to the longevity and performance of infrastructure. One key method for assessing the strength of …

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Aggregate Crushing Value Test – Procedure, Result

The aggregate crushing value test provides resistance of an aggregate to crushing under a gradually applied compressive load. To construct a high-quality pavement, aggregate possessing low aggregate crushing value should be …

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Aggregate Crushing Value Test Method

The purpose of this method is to determine the crushing value of the given sample of aggregate for the road construction works. ... Also stresses under rigid tyre rims of heavily loaded animal drawn vehicles are high enough to consider …

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Determining the Physical Properties of Aggregate Products and …

In general, older and more hardened limestone exhibits higher strengths and is suitable for road surfacing applications, as well as for use in the lower parts of the road pavement (Adeyi et al. 2019).

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Tests of aggregates | PPT

When traffic moves on the road the soil particle (sand) which comes between the wheel and road stone. ... - To determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) - 1963. APPARATUS :- 1) Cylindrical measure and plunger 2) Compression testing machine 3) IS Sieves of sizes - 12.5mm, 10mm and 2.36mm

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Aggregate Crushing Value Test – Determine Aggregate Crushing …

Specifically, the test aims to determine the aggregate crushing value of the coarse aggregate. This value is an indicator of the strength and durability of the aggregate, which is …

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Department of Civil Engineering

2. To determine the toughness (i mpact value) of aggregates. 3. To determine the crushing value of road aggregates. 4. To determine the Specific Gravity and water absorption of aggregate. 5. To determine the flakiness and elongation indices of the given aggregate sample. (B ) Tests on bitumen 6. To determine the softening point of bitumen. 7.

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Standard of Crushing Value of Coarse Aggregates for Permeable …

It was proposed that the crushing value of the coarse aggregate used in PA mixture should be no more than 20% . Liu et al. suggested that the crushing value of coarse aggregate for the OGFC-13 mixture should not exceed 15% . Dang et al. proposed that the crushing value of coarse aggregate was not more than 15% .

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Method of Testing Determination of Aggregates Crushing Value …

This document outlines a procedure for determining the aggregate crushing value (ACV) of road construction aggregates. The ACV test applies to aggregates between 10mm and 14mm in size. The procedure involves compacting aggregate samples into a cylinder, applying a load of 400kN over 10 minutes, then sieving the crushed material to determine the percentage passing a …

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Aggregate Crushing Value Test

Determine the aggregate crushing value of coarse aggregate; Assess suitability of coarse aggregates for use in different types of road; Apparatus. A steel cylinder 15 cm diameter with plunger and base plate. A straight metal tamping rod 16mm diameter and 45 to 60cm long rounded at one end.

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Evaluating the crushing characteristics of recycled construction and

Laboratory studies have been carried out to determine the crushing characteristics of recycled aggregates. Single-particle crushing tests were conducted by Park et al. (2018) to quantify the stress level during particle crushing. The improvement of crushing stress level by a carbonation treatment of the recycled aggregates was analyzed using single-particle crushing …

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To determine crushing strength of given aggregate sample

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 …

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Testing aggregates

Table 2 — Guide to minimum mass of test portions required to obtain a suitable mass of material to determine the aggregate crushing value Grading of the aggregate 5.7 A cylindrical metal measure, for measuring the test samples, of …

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Lab Tests on Aggregate to Determine Quality for Use in Road Work

Aggregate Crushing Test – The aggregate crushing value gives the relative measure of resistance against crushing under crushing load applied gradually.The aggregate test is standardized by IS: 2386 part-IV and used to determine the crushing strength of aggregates. Se-Test India aggregate crushing value provides a relative measure of ...

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Aggregate crushing value Test and Procedure

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 road ...

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Experiment No 6

The aggregate crushing value gives a relative measure of the resistance of aggregate to crushing under a gradually applied compressive load. It is the percentage by weight of the crushed material obtained when test aggregate are subjected to specific load under standard condition and is numerical index of the strength of aggregates used in road ...

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RELATIONSHIP BETWEEN AGGREGATE CRUSHING …

It is used to determine the crushing value of a given road aggregate also it is used to assess ... a diagram was produced to determine the ACV of aggregates from the ten per cent fines load, or ...

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To determine crushing strength of given aggregate sample

Aggregate Crushing Value Test Objective. To determine crushing strength of given aggregate sample. IS Standards used:IS-2386 Part- 4 and BS: 2009 Need and scope:This is one of the major mechanical properties required in a road stone.The test evaluates the ability of the aggregates used in road construction to withstand the stresses induced by moving vehicles in …

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7.7 Aggregate Crushing Value and 10% Fines Value 7.7.1 …

Calculate the Aggregate Crushing Value (ACV) expressed as a percentage to the first decimal place, of the mass of fines formed to the total mass of the test specimen from the following expression. (ACV) = 100 x M 2 / M 1 Where, M 1 is the mass of the test specimen in grammes. M

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Aggregate Crushing Value Test, Crushing Value Test …

The aggregate crushing value test evaluates the ability of the aggregates used in road or pavement construction to withstand the stresses induced by moving vehicles in the form of crushing. With this, the aggregates …

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Aggregate Crushing Value Test

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.

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Aggregate Crushing Value

Procedure to determine Aggregate Crushing Value i) The aggregates passing through 12.5mm and retained on 10mm IS Sieve are oven-dried at a temperature of 100 to 110 o C for 3 to 4hrs. ii) The cylinder of the apparatus is filled in 3 layers, each layer tamped with 25 strokes of a tamping rod. iii) The weight of aggregates is measured (Weight ...

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Aggregate Crushing Value 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, aggregates possessing low aggregate crushing value should be …

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Determine Aggregate Crushing Strength

Aggregate crushing value is defined as the percentage by weight of the crushed (or finer) material obtained when the test aggregates are subjected to a specified load under standardized conditions, and the strength of the …

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Aggregate crushing strength test | PPT

3. Department Of Civil Engineering, MUST This test evaluate the ability of aggregate used in Road-Highway construction to withstand the stress induced by moving vehicle in form of crushing and gradual loading. This test method is applicable to aggregate passing on 14.0 mm test sieve and retained on a 10.0 mm test sieve. 3 Objectives: The basic aim is to find …

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PREDICTION OF AGGREGATE IMPACT VALUES AND …

The aggregate crushing value, which is an inverse measure of mechanical strength of aggregate, is determined by the percentage of fines passing through 2.36 mm IS sieve after test

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(DOC) Aggregate Crushing Value for Road Materials

Objective: 1. Determine the aggregate crushing value of coarse aggregate. 2. Assess suitability of coarse aggregates for use in different types of road. Theory: The " aggregate crushing value " give a relative measure of the resistance of

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Chapter 8 Pavement materials: Aggregates

A test is standardized by IS:2386 part-IV and used to determine the crushing strength of aggregates. The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied crushing load. The test consists of subjecting the specimen of aggregate

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Aggregate impact value test experiment | PDF

The percentage of material passing a 2.36mm sieve was calculated to determine the aggregate impact value, with average values below 10 considered strong and above 35 too weak for construction. ... where as those having value more than 50% are bad for construction. It is reliable to calculate the AIV % of the aggregate use as road construction ...

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