Fineness test is used to change the proper grinding of cement and measures the surface area of the cement particles per unit mass.4. Therefore finer cement react faster with water and the rate of development of strength and corresponding heat of hydration is high.
Contents
What is the fineness of cement?
How to test fineness of cement? The fineness of cement is a measurement of the size of the cement particles and is represented in terms of the cement’s specific surface area. The fineness test of cement involves passing samples of cement through a standard IS sieve.
What is the apparatus for fineness test of cement?
Fineness Test of Cement. – Fineness test of cement is done to determine the particle size of cement. As, the rule of thumb, the finer the cement particle the best will be the cement and on the other hand the coarser the particle it will not be that good.
The fineness of cement is determined by two methods; 1. Sieving Method.2. Air Permeability Method (Blaine Method). However, in this article, we’ll only discuss about the sieving method of determining the Fineness of Cement. Because this is the most common and easiest method to test fineness of cement. As per Indian Standard, the cement particle more than 10% shall not retain on the sieve (90 µm).
In this article, We are going to discuss about the Fineness Test of Cement; its importance, apparatus, procedure, result in details. So, Let’s Get Started.
How do you test the quality of cement samples?
The Fineness test sample should be free of lumps. Drop 100 gm of cement in 90 µm sieve and close it with the lid. Now, shake the sieve by agitating the sieve in planetary and linear movements for 15 minutes. Then after, calculate the percentage of Weight of cement-retained on Sieve.
What is the is code for fineness test of cement by sieve?
The IS Code used for performing the fineness test of cement by sieve analysis is IS: 4031 Part-1 (1996). The following IS code references are followed in fineness test of cement by sieve analysis. IS 460 (Part-3): 1985 Methods of examination of apertures of test sieves IS 5165: 1969 Interchangeable conical ground – glass joints
What is the apparatus for fineness test of cement?
Fineness Test of Cement. – Fineness test of cement is done to determine the particle size of cement. As, the rule of thumb, the finer the cement particle the best will be the cement and on the other hand the coarser the particle it will not be that good.
The fineness of cement is determined by two methods; 1. Sieving Method.2. Air Permeability Method (Blaine Method). However, in this article, we’ll only discuss about the sieving method of determining the Fineness of Cement. Because this is the most common and easiest method to test fineness of cement. As per Indian Standard, the cement particle more than 10% shall not retain on the sieve (90 µm).
In this article, We are going to discuss about the Fineness Test of Cement; its importance, apparatus, procedure, result in details. So, Let’s Get Started.
What is the fineness of cement?
What Is Fineness of Cement – The fineness of cement is a measure of cement particle size and is denoted in terms of the specific surface area of cement, The Fineness Test of Cement is done by sieving cement samples through a standard IS sieve. The weight of a cement particle whose size is greater than 90 microns is determined.
What is the size of sieve used to test fineness of cement?
The size of sieve used to test the fineness test of cement is 90 micron IS Sieve. What is the value of fineness of cement? Generally, Cement used for construction should have value of fineness less than 10%.
How to test the quality of cement?
Procedure for finding Fineness test of cement: –
Take a sample of cement and rub the cement with your hands. The test sample should be free of lumps.Now Take 100g of cement and note it as W1. Pour 100g of cement in 90 µm sieve and close it with the lid.Now place the sieve in Sieve shaking machine for two minutes. You can also shake the sieve with your hands by Agitating the sieve in planetary and linear movements for 15 minutes.Nextly, weight the residue retained on the 90 µm sieve as W2. Then calculate the percentage of Wt of cement-retained on Sieve.Repeat the above experiment with three different samples of cement and average the values for accurate results.
