5. External Wall Construction

External wall construction265. External Wall ERECTION OF External PRECAST WALLSThe erection of precast walls generally involves the following steps:a)moving the precast wall panels from delivery truck or site storage yard to the designated locations forinstallation;b)raising the precast panels to the required elevation (and rotating to correct orientation if necessary);c)fixing the precast panels in position; andd)casting the wet joints and/or grouting and applying : Erection of a precast wall1. Remove precast wall fromdelivery the precast wall to requiredheight and orientation3. Position compressiblewaterproofing strip at joint4. Apply non-shrink precast wall into position6. Adjust position of precast wall7. Install plumb(and adjust if necessary)9. Remove excess grout infill afterprecast wall is erectedFigure : Wet CASTING OF WET JOINTSThe use of wet joints is essential in minimising water seepage through the joint : Casting of wet joint connections1.

Mesh reinforcement embedded at every 4th course and tucked into the next course Steel lintel installed at window opening Figure 5.13: Installing bonding bars, brick reinforcement and lintels End of lintel supported on a full brick unit with minimum 100mm bearing. external wall …

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  Reinforcement, Mesh, Reinforcement mesh

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