NBS Clauses

M10 CEMENT BASED LEVELLING/ WEARING SCREEDS

140 PROPRIETARY POLYMER MODIFIED LEVELLING SCREEDS:

CEMEX Readymix - Readyscreed SBR

A ready to use, high performance, retarded screeding mortar designed to give increased toughness, bond and durability than traditional screeds, with a greater resistance to wetting and erosion. It is suitable for all conventional screed applications but can be laid in much reduced thicknesses.

The base surface should be thoroughly prepared by mechanical means - shot blasting, scabbling, bush hammering or similar and should remove all traces of surface material and laitence, together with any weak, friable or contaminated material to expose clean fractured faces of the aggregate. All dust and debris should be removed with an air jet or industrial vacuum cleaner. The base should be thoroughly wetted 24 hours before work commences. A bonding coat of cement / polymer should be brushed onto the base and the screed applied when the bonding coat is wet.

Consult CEMEX UK technical literature for details. CEMEX Readymix can also provide a technical and advisory service and it is recommended that they be consulted early in the design process, for more information contact us on 0800 667 827.

Screed construction:
As CEMEX Readymix's recommendations

Manufacturer: CEMEX UK Materials Ltd, CEMEX House, Rugby, Warwickshire, CV21 2DT.

Email: gb-enquiries@cemex.com
Web: www.cemex.co.uk/screed

Product reference: Readyscreed SBR

Mix:
1:3 - For minimum strength of 30N/mm² after 28 days
1:4 - For minimum strength of 20N/mm² after 28 days