Sizes:
Clayboard® is supplied in panels 2440mm long by 1000mm wide, by the specified thickness. Clayboard® is delivered to site on lightweight pads for easy unloading, and is polythene wrapped for protection. Thickness:
The thickness of Clayboard® depends on the depth of the required void which should be specified by the soil engineers taking into account the plasticity index.
Examples of Clayboard® thinkness required:
Compressive Strength:
Clayboard® is available in two standard strengths, KN30 and KN90. KN30 has a norminal compressive strength of 30kN/m2 when dry and is designed to support the weight of wet concrete up to 1m thick. KN90 has a nominal compressive strength of 90kN/m2 when dry and is recommended for concrete slabs thicker than 1m.
When the core is wetted, both KN30 and KN90 Clayboard® will collapse under nominal compressive load of approximately 3kN/m2.
Health & Safety:
The materials used in Clayboard® do not constitute a risk to the Health and Safety of users in the course of site application in the recommended manner. It is the user's responsibility to adopt relevant safe practices when handling, stacking, cutting and installing Clayboard® panels. Clayboard® panels are safe to handle with no dust and no harmful emissions.
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