Unit-1 introduction to building construction

Some common building types include residential, industrial, infrastructure, public, and agricultural, to name but a few. There are subcategories in each category, such as single-family or multi-family residential homes

1. Building Technology and Architectural Planning UNIT I Introduction to Building Construction and Masonry. Prof. Vaibhav V. Kulkarni

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5. Characteristics of Good Bricks Size The size of the brick should be uniform and must be of standard size. As per IS 1077(1992) the standard size of brick is 190 mm x 90 mm x 90 mm (or) 190 mm x 90 mm x 40mm.   Shape The brick must be of rectangular shape. The sides of the brick should be parallel Also, the edges of brick must be sharp and straight. Color Good brick must possess uniform color which may be either deep red or cherry. The uniformity in color of bricks represents uniformity in chemical composition and homogeneous burning of brick. Texture The surface of the brick must not be too smooth. Excess smoothness of the bricks result in slipping of mortar. Compressive strength The crushing strength of the brick must not be less than 3.5 N/mm 2 . The  compressive strength test  of brick is determined using Compression Testing Machine. Soundness Strike two bricks against each other. If a metallic ringing sound is produced, then the bricks are of good quality. A good quality brick must be able withstand severe weather condition . Toughness The brick should not break into pieces when dropped flat on hard ground from a height of about 1 m or 1.2 m.   5

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38. Rock & Quarry Faced The stones have neatly cut edges while their faces are left in the natural state as they come from the quarry, hence the name 'Rock-Faced' or 'Quarry-Faced'. 38

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