A sieve analysis or gradation test determines the distribution of aggregate particles by size within a given sample. This information can then be used to determine compliance with design and production requirements.
In this regard, how can aggregate be identified as coarse aggregate?
Coarse aggregates are irregular in shape, broken stones, or naturally occurring round gravels that are used to make concrete. Aggregate which has a size bigger than 4.75 mm or which retrained on 4.75 mm IS Sieve are known as Coarse aggregate.
Regarding this, how do you sieve aggregate?
Procedure to determine particle size distribution of Aggregates. i) The test sample is dried to a constant weight at a temperature of 110 + 5oC and weighed. ii) The sample is sieved by using a set of IS Sieves. iii) On completion of sieving, the material on each sieve is weighed.
Is sieve for coarse aggregate?
Coarse aggregate means the aggregate which is retained on 4.75mm sieve when it is sieved through 4.75mm. To find fineness modulus of coarse aggregate we need sieve sizes of 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm.
What is meant by coarse aggregate?
Coarse aggregates refer to irregular and granular materials such as sand, gravel, or crushed stone, and are used for making concrete. In most cases, Coarse is naturally occurring and can be obtained by blasting quarries or crushing them by hand or crushers.
What is the advantage of sieving?
Advantages of the sieve analysis include easy handling, low investment costs, precise and reproducible results in a comparably short time and the possibility to separate the particle size fractions. Therefore, this method is an accepted alternative to analysis methods using laser light or image processing.
What is the importance of aggregate sieve test?
The sieve analysis determines the gradation (the distribution of aggregate particles, by size, within a given sample) in order to determine compliance with design, production control requirements, and verification specifications.
What is the purpose of sieve analysis?
A sieve analysis is an analytical technique used to determine the particle size distribution of a granular material with macroscopic granular sizes.
What is the theory of sieve analysis?
Sieve analysis is used to obtain the particle size distribution of a solid material by determining the amount of powder retained on a series of sieves with different sized apertures. … As the sieves are vibrated, the sample is segregated onto the different sized sieves.