Admixture which, without effecting the consistence, permits a reduction in the water content of a given concrete mix, or which, without affecting the water content increases the slump/flow or produces both effects simultaneously.
This type of admixture improves the dispersion of cement particles resulting in an increase in workability.
With a typical dosage of 0.2 – 0.8 % by weight of cement, plasticisers increase the workability at a given water/cement-ratio by between 50 and 100 mm slump with no loss of strength or durability.
Alternatively, they can be used to reduce water content in a range of 5 – 12 %. This reduction in water/cement ratio gives significant durability enhancement and strength increase for a constant cement content.
The main application of plasticisers is by ready-mix concrete producers to optimise the cost effectiveness of the mix. The environmental profile is also improved.
The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.