Tag: Cement

Cement Mortar – Preparation of Cement Mortar

Cement Mortar The unit of measurement for cement is a bag of cement weighing 50 kg and this is taken as 0.035 cu. m. Sand is measured in boxes of size 25x35x40 cm on the basis of its dry volume. Cement mortar shall be used as soon as possible after mixing and before it has [&hell...

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Storage of Cement

Storage of Cement Cement can be safely stored in sacks for a few months if kept in dry and air-right room. If prolonged storage of cement is unvoidable, it is better to empty the bags and stock the cement in as deep a heap as possible in a damp-proof enclosed space. Paper sacks a...

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Test for Freshness of Cement

Test for Freshness of Cement Indications of a damaged cement are given by the presence of large lumps of set cement, and when this happens the lumps should be screened out unless they are soft enough to be powdered when pressed in the fingers. It needs to be considered if this ce...

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Hydration of Cement & Evolution of Heat

Hydration of Cement & Evolution of Heat When water is added to cement, the cement hydrates and during the chemical reactions which take place while the cement is setting an increase in temperature occurs and a considerable quantity of heat is generated. Hydration of cement is...

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Initial & Final Setting Time of Cement Test

Initial & Final Setting Time of Cement Initial & Final Setting Time of Cement test is used to detect the deterioration of cement due to storage.This is a conventional type of cement test and it has no relation with that of hardening of concrete. Initial Setting Time of C...

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Consistency Test of Cement

Consistency Test of Cement Consistency Test of Cement is carried out inorder to find the determine the percentage of water required for preparing cement pastes for other tests. Test Procedure to Find the Consistency of Cement: 1. Take an empty enameled pan free from dirt and othe...

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Tensile Strength of Cement

Tensile Strength of Cement Tensile Strength of Cement test was formerly used to have an indirect indication of compressive strength of cement. It is at present generally used for the rapid hardening cement. Tensile Strength of Cement Test Procedure: (i) The mortar of cement and ...

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Types of Cement

Types of Cement There are many different types of cement that are available in the market. The types of cement generally vary in their setting time, strength, and many other factors. Some of the different types of cement are as follows, 1. Acid-Resistant Cement 2. Blast Furnace C...

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Soundness Test on Cement

Soundness Test on Cement Soundness Test on Cement is carried out to detect the presence of uncombined lime in cement. This test is performed with the help of Le Chatelier apparatus as shown in figure below. It consists of a brass mould of diameter 30 mm and height 30 mm. There is...

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Fineness Test on Cement

Fineness Test on Cement Fineness Test on Cement is carried out to check proper grinding of cement. Fineness of cement particles may be determined either by sieve test or by permeability apparatus test. In sieve test, the cement weighing 100 gm is taken and it is continuously pass...

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