Blue Circle Hydralime
Hydralime is a high calcium, non hydraulic, hydrated lime.
This product is used to improve the plasticity, cohesiveness and water retention of Portland cement mortars and renders.
Hydralime is suitable for use with Tarmac Mastercrete, General Purpose Cement, Snowcrete, Procem and Sulfacrete. As Hydralime is non-hydraulic, it is not suitable for use in mortars and renders without Portland cement and is generally not compatible with waterproofing admixtures.
Available in 25kg bags.
Hydralime is a quality-assured BS EN 459-1 CL 90-S hydrated lime, with independent third party certification and carries CE marking.
Improvements to Portland Cement Mortars & Renders
- Hydralime may not be used for general concreting, screeds or grout.
- For mortars and renders Hydralime should always be mixed with cement and sand components.
- The final finish quality of this material will depend on the operative having the required skills and a familiarity with the material and its application methods.
- Normal site practice to the relevant British and European Standards should always apply. Tarmac Cement UK cannot be held responsible where workmanship has not been carried out in accordance with good practice.
Manual handling should comply with The Manual Handling Operations Regulations 1992.
Note that as Hydralime is non-hydraulic, it is not suitable for use in mortars and renders without a Portland cement.
The maximum benefit of Hydralime can be obtained by its use in a lime putty. This is produced by adding an excess of 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.