Block Paving Refurbishment
| We have significantly
developed the pavement refurbishment market, especially for clay and concrete
block paving and other natural stone materials. Typically, the process involves
deep surface cleaning and defoliation, and often localized full-depth reconstruction
and replacement of jointing sand, following which the whole pavement is
stabilized and sealed with either a polyurethane or an acrylic sealant.
Because of environmental considerations as well as health and safety issues,
we recommend the use of water-based acrylic sealants, which are hard-wearing
and very effective but less elastomeric than polyurethane sealants. However,
we believe that the aforementioned considerations outweigh what are arguably
minor technical issues. In some circumstances, especially where clay is
involved, pavements sometimes display a tendency to be slippery. In such
instances, we restore micro-texture in addition to cleaning, sanding and
sealing. |
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