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Testing Of Bricks: Warpage Test (IS:3495 (Part IV)

   Posted On :  14.07.2016 08:29 pm
Testing Of Bricks: Warpage Test (IS:3495 (Part IV)

Warpage of the brick is measured with the help of a flat steel or glass surface and measuring ruler graduated in 0.5 mm divisions or wedge of steel 60 15 15 mm (Fig. 17 ).

Testing Of Bricks: 

Warpage Test (IS:3495 (Part IV):

Warpage of the brick is measured with the help of a flat steel or glass surface and measuring ruler graduated in 0.5 mm divisions or wedge of steel 60 � 15 � 15 mm (Fig. 17 ). For warpage test, the sample consists of 10 bricks from a lot.

Concave Warpage: The flat surface of the brick is placed along the surface to be measured selecting the location that gives the greatest deviation from straightness. The greatest distance of brick surface from the edge of straightness is measured by a steel ruler or wedge.

 

Convex Warpage: The brick is place on the plane surface with the convex surface in contact with the flat surface and the distances of four corners of brick are measured from the flat surface. The largest distance is reported as warpage.

 

The higher of the distance measured in concave and convex warpage tests is reported as warpage.

 

Tags : Civil - Construction Materials: Stones, Bricks,Concrete Blocks
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