English to Arabic Tech/Engineering Architecture

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EXTERIOR IMPROVEMENTS
BASES, BALLASTS AND PAVING
Unit Paving:
Concrete paving block units; 400 x 400 x 50 mm thick, with shot-blasted finished in 50% light beige colour; bedded on
30 mm thick mortar; 150 mm thick sub base with CBR > 65%; geotextile fabric and 300 thick mm sub grade with CBR > 30%;