Blue Circle Hydralime is a quality-assured BS EN 459-1 CL 90-S hydrated lime, with independent third-party certification and carries CE marking. Blue Circle Hydralime is used to improve the plasticity, cohesiveness and water retention of Portland cement mortars and renders. Blue Circle Hydralime may be used with Procem, Mastercrete, General Purpose Cement, Ferrocrete, Snowcrete and Sulfacrete. Note that as Blue Circle Hydralime is nonhydraulic, it is not suitable for use in mortars and renders without a Portland cement. TARMAC.COM PRODUCT DATA SHEET BLUE CIRCLE HYDRALIME PAGE 1 of 2 Uniclass L621 / CI / SfB / / Yq2 / August 2018 The maximum benefit of Blue Circle Hydralime can be obtained by its use in a lime putty. This is produced by adding an excess of Blue Circle Hydralime to water in a clean container with constant stirring to form a paste, which is allowed to condition by standing for 24 hours before use. Do not allow to dry out during this time. Guidance on mortar and render mixes and their suitability for various locations and conditions is given in the following: • BS EN 1996-1-1: Eurocode 6 - Design of masonry structures • BRE Digest 362: Building Mortar • BSI PD 6678: Guide to the specification of masonry mortar • BS EN 13914-1: Design, preparation and application of external rendering and internal plastering. A mortar of 1:1:5 to 6 (by vol) Portland cement:Blue Circle Hydralime:sand is equivalent to a 1:5-6 (by vol) Portland cement:sand + plasticiser in plasticity and strength.
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