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Description
- It is essential that the first two layers of brickwork, or one layer of blockwork, are laid with special care and that the mortar joints both vertical and horizontal are properly filled, leaving no voids. (1:3 cement, sand mortar is recommended).
- Building blocks may be used if they are solid and have a minimum crushing streanth of 3.0 N/mm².
- In lintels over 1.500m props must be used at the quarter points until mortarwork has matured.
- Where a D.P.C. is used it must be placed over the second layer of the blockwork
- Minimum bearing of 150mm each side, or as directed by the strucural engineer.
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Composite Lintels
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