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SRO939 Levelling over Internal Floor Heating Elements

This recommendation is regarding the levelling/smoothing over internal concrete floors to cover the electrical heating elements (mats or cables) laid over the floor surfaces prior to the installation of the floor finishes. The concrete floors must be structurally sound and comply with the recommendations of AS1884-2012 (i.e. at least 20MPa compressive strength and at least 1.5MPa surface tensile strength). This specification is based upon Ardex Technical Bulletin TB029

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