Quad 50mm and 60mm Cabros

Concrete paving blocks, commonly known as Cabros in Kenya are used on road carriage way surfaces, car parks, within landscaped compounds and in tented shelters.
The Strength of the block is determined by its thickness, with most common thicknesses ranging from 50mm, and 60mm.
For heavy duty roads, 60mm thick blocks are used. For light duty roads such as driveways to private residences, tented shelters and car parks, 50mm thick is appropriate.
The soil underneath, especially if its black cotton soil, needs to be removed until stable ground is reached. Murram is then backfilled and a roller compactor used to compact the soil. The last 300mm depth is filled with hand packed hardcore which is also roller compacted. Fine aggregate is laid on top then finally the paving blocks arranged and held together on the edges by the concrete kerbs.
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