Quantity:
A chloride free version of Surespeed, for use where metal reinforcements or wall ties are likely to be used.
Rate of use guide:
1.25 Ltr - 2.5 Ltr per 25 kg of cement.
Surespeed CFL is a liquid cement admixture to promote accelerated strength gain in mortar combined with the proved benefits on air entrainment allowing work to continue in lower temperatures. Surespeed CFL being chloride free is suitable for use in most types of mortar and non-structural concrete where the use of calcium chloride, as the accelerator medium is either prohibited or undesirable.
Surespeed CFL is introduced into the mixing drum at a rate of 2.5 litre-5 litre per 50 kilo of cement or pre -mixed with the gauging water.
The examples given below are typical of the requirements and dosage rates applicable.
All sands and aggregates to be used should comply with relevant national standards.
Care should be taken to ensure that mixes are placed or laid as soon as possible after mixing at sub-zero temperatures. This time must not exceed 20 minutes.
Ensure all aggregates are free from frost and cover work on completion to protect from freezing winds.
In sub zero conditions concrete should not be gauged weaker than 1:2:4
For bricklaying and rendering mortars at temperatures down to -2°c a 1: 6 cement sand mix should be used, with Surespeed CFL added at a rate of 1.25 litre per 25 kg of cement
For temperatures below -2°c a stronger mix should be used 1:4 cement sand being suggested and Surespeed CFL added at a rate of 2.5 litres per 25 kgs of cement. In all cases maximum benefit of Surespeed CFA is achieved when the water reducing properties of the product are utilised to the full.
In mortar mixes where high levels of plasticity are required Surespeed CFL can be complemented by PMP Powdered Mortar Plasticiser.
As a general code of practice treat all chemical products with care and keep away from children and animals. Protect skin and eyes from direct contact.
Full health and safety data sheets are available upon request.
