brickwork[1].05

brickwork[1].05 - Bricks & Brickwork movement Clay...

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DJ Lavery movement BS 3921 becomes BS EN 771–1 BS 3921 will co-exist alongside BS EN 771–1 until early 2005 Classifications will change but products will remain the same   CE marking will ultimately denote conformity See Brick Development Association website for updates Clay Bricks - European Standards
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DJ Lavery Brickwork : Durability The agents of potential damage to brickwork are : Water Frost Soluble Salts movement
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DJ Lavery Brickwork : Durability Water and Frost Brickwork absorbs water Some parts more than other These areas are at risk of frost attack All bricks can withstand frost attack except those for internal use High strength & low porosity is a good guide to frost resistance No test available Seek manufacturers advice Otherwise use > 48N/mm 2 with , 7% water absorption
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DJ Lavery Brickwork : Durability In a cavity wall The outer leaf of the cavity is seldom frozen through Frost turns the pores in the saturated brickwork to ice Ice occupies 10% more
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brickwork[1].05 - Bricks & Brickwork movement Clay...

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