Clay Heave Protection - Jablite

Ignition temperatureFlash ignition temperature is between 350 and 490ºC depending on the application and the exact circumstancesof use. Under certain circumstances the material can be readily ignited by a naked flame but providing it iscorrectly installed, this does not present any disadvantage in use.Mechanical PropertiesThe expansion of clay soil is a long-term phenomenon and it is necessary for the compressible fill to react in thesame timescale. Claymaster achieves this by creep deformation, reducing the induced pressures to safe levelsStorageStore Jablite boards under cover, protected from high winds and out and out of direct sunlight. Care should betaken in storage not to bring the boards into contact with highly flammable materials such as paint, solvent orpetroleum products. Smoking should be prohibited in the storage area and the products must not be exposedto flame or other ignition source.THICKNESS OF CLAYMASTER TO COMPLY WITH NHBC REQUIREMENTSSoil heaveUnderside of beamAgainst side of foundations & beamspotentialNHBC void Equivalent NHBC void EquivalentDimension Claymaster dimension ClaymasterHigh 150mm 250mm 35mm 75mmMedium 100mm 175mm 25mm 50mmLow 50mm 100mm 0mm 0mmDesignIn order for Jablite to provide advice on the appropriate thickness of Claymaster for a given situation, thefollowing information is required:1 Maximum expected ground movement (H, mm).2 Acceptable upthrust on the ground- beam foundation (P, kN/m²) as used in the concrete design, or...3 Maximum acceptable lateral thrust on the trench-fill foundation (W, kN/m²); this value should not normallyexceed 40kN/m².The required thickness of Claymaster can be calculated as follows:1 Read-off the value for percentage compressive strain (C, %) given by the maximum load, P or W.2 Calculate the required thickness of material by the equation T = 100 x H/C +10.This value includes an allowance for instantaneous deflection of the Claymaster due to the wet concrete load.Floors | Walls | Roofs Jablite Claymaster Technical Information 5