Steintec Tuffbed is a pre-mixed high performance, naturally pure hydraulic bedding mortar, suitable for paths, patios and driveways. For paved areas in natural stone, granite, concrete and porcelain paving units. Fully water permeable and frost resistant. Polymer and resin free.
Tuffbed Utility is pre-blended and packaged in moisture resistant 25kg bags.
For a depth of 30mm, 3 bags are required per square metre.
Bedding depths of between 25mm and 70mm can be placed in a single layer. Greater depths can be achieved by placing successive compacted layers.
Tuffbed Utility is shrinkage compensated, reducing the risks of failure associated with building permanent strain into new structures, leading to uncontrolled cracking, the inevitable result of excessive shrinkage.
The elastic modulus of Tuffbed Utility is optimised to provide the correct supporting stiffness whilst continually absorbing the thermal stresses and dynamic loads that all pavement structures are subjected to.
Tuffbed Utility complies with and exceeds the performance requirements of BS7533-7:2010, type A bedding mortar in ALL repsects, including the key requirement of permeability to prevent moisture related issues such as frost damage, organic growth, picture framing, efflorescence, staining etc.
Add approx. 3 to 4 litres of water per 25kg bag, depending on desired workability.
For an enhanced adhesion bond between the bedding layer and the underside of the paving elements, and the supporting layer beneath, brush apply tuffbond priming mortar. This is a requirement for compliance with BS 7533-7:2010