01858 545 789 ext 101858 545 789 ext 1
Boyd Sport & Play Limited t/a sportsequip.co.uk, The Manor, Tur Langton, Leicestershire,
The following information offered for guidance when constructing a new concrete base for cricket and is based on a technical document produced by the Cement and Concrete Association.
Before construction starts a decision has to be made whether or not to include steel reinforcing in the slab.
Reinforcing is not required structurally as the slab is non-load bearing but can be introduced to control cracking caused by thermal contraction as the concrete cures.
An un-reinforced slab will crack as a result of shrinkage during the curing process randomly at approximately every 6 metres. These cracks are generally of no detriment to the play of the finished wicket and visually will not be evident once the wicket has been fully surfaced. In view of this therefore most slabs are laid un-reinforced.
By including steel reinforcing mesh it is possible for instance to reduce the amount of cracking in the key area where the ball pitches. By laying up to 6m long panels of mesh with 50mm gaps between, the main contraction cracks should occur at the gap between the reinforcing rather than at random. Where mesh is to be included it should be spaced mid way in the slab and terminate 50mm from the ends and sides.
As an alternative to installing mesh the slab could be constructed in the bays with a suitable fibre expansion joint material inserted between consecutive bays. Great care must be taken to ensure the construction joints are level and even.
The above is intended for typical guidance only and some site conditions may require an alternative specification.
The Manor, Tur Langton
Leicestershire, LE8 OPJ
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