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.
The thickness required will be determined by the plasticity index, specified by the soil engineer. Varying thicknesses are available and a member of the Clayboard® team will be able to advise you on the best possible solution.
Clayboard® Residential (KN30) has a nominal compressive strength of 30kN/m2 when dry and is designed to support the weight of wet concrete up to 1m thick. When the core is made wet, KN30 Clayboard® will collapse under nominal compressive load of approximately 3kN/m2.
All of our Clayboard boards can be supplied pre-wrapped to site so they are ready to be laid with water protection. Our VoidPak Pipe system can be used in conjunction with Clayboard to effectively and easily introduce water to the Clayboard and start the honeycomb degeneration process.