Review of Indian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of BIS Handbook and Standards Monthly Additions.
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NOTE - may be 3. Serious - Place the end of the bricks in the dish, the depth of immersion in water being 25 mm. Copyright Documents Similar To is. Koppolu Srinivasulu. Krishnanand Anvekar. Nguyen Quang. Natan Ezequiel Sanchez. Vatsala Ramadurgam.
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Water absorption does not necessarily indicate the behavior of a brick in weathering. The durability of a brick may be tested by frost action, i. The absorption test has long been considered a measure of durability, although the basis for this assumption is questionable. The suction rate of the brick at the time it is laid exercises a mark influence on the mortar bond. Too rapid withdrawal of water from the mortar by the brick produces a weak bond.
The rate at which a brick absorbs water, frequently called its suction rate, maybe measured by immersing one face of the brick in water. The one minute water uptake initial rate of absorprion is taken as the suction rate. For long periods of immersion in theis test, the total wieght of water absorbed per unit area,. The weight W1 of the bricks is recorded after cooling them to room temperature.
The specimens are then taken out of water and wiped with a damp cloth. Three minutes, thereafter it is weighed again and recorded as W2,. Recent Updates. IS: Water Absorption Test. Previous Factors affecting the Measuring Procedure.
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