By Hanrietta Camus. block. Published at Sunday, February 03rd, 2019 - 05:06:52 AM.
Paving block structures with mortar filled vertical joints can exhibit a significantly higher load capacity as comparable structures with sand filled joints. For this reason, this pavement construction method is increasingly being used or would be used, respectively, if its performance could be estimated reliably. Specifically, the exact cause of cracks due to cooling in winter has not been fully understood yet and appropriate prediction tools do not exist.
The manufacture of concrete paving blocks is a highly specialised process. Concrete pavers need to be dimensionally accurate and meet the required compressive strengths and abrasion resistance standards. Product should ideally be sourced from a SABS accredited manufacturer. (SABS 1058 sets out the standards and tolerances for concrete paving blocks.
Consumers should sweep and hose the paved area down regularly to keep it free of debris and stop the build up of dust and grime. It is also wise to fill the areas in between the pavers with plaster sand once every year. This will ensure that the paving remains rigid and does not shift.
The industrial sector has also caught on to this trend as concrete paving, specifically designed and manufactured with this segment of the market in mind, can easily handle heavy traffic such as trucks and cranes. Because of the low maintenance required, the total cost of paving is more affordable than tar over the long term.
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