Streetscape® High Strength Bedding Concrete

Preparation

All substrates must be suitable to receive the laying course as per current good working practices. All substrates for bonded constructions should be clean and thoroughly sound, free from oils, grease, dust, loose particles, or any other contaminants which may interfere with adhesion.

Mixing

The product is mixed to the desired consistency either from a site silo and continuous mixer or in a suitable site mixer if 25kg bags are used. Add 2 – 2.5L of clean water per 25kg bag to achieve the desired semi-dry workability. Do not rewet previously mixed batches. Material mixed from bulk silos should be done so in accordance with the site training given by our technical team.

Priming

To achieve a bond strength as described in BS 7533, the substrate must be primed using Priming Slurry prior to placing High-Strength Bedding Concrete. All paving units must be primed with Priming Slurry promptly prior to placing them into High-Strength Bedding Concrete.

Application

HSBC can be laid in depths of 10-75mm in one layer. Greater depths can be achieved using the layer on layer method. Place the product on the pre-soaked and freshly primed base and spread to the desired depth. Ensure to use the material while it is still moist and fresh. Prime the back of the paving unit and immediately place it in position, using a rubber mallet to bed and level. When applying another layer to a layer which has cured, it should first be primed with Priming Slurry. Place the product on the pre-soaked and freshly primed base and spread to the desired depth. The substrate must not be frozen. The product will take longer to gain strength during colder conditions.