This is the first time this type of concrete is available in the UK and is branded Promptis.
The new concrete admixture system makes it possible to achieve an accelerated strength of 4 MPa after just four hours. But, as important, the concrete is designed to maintain its initial flow for at least 90 minutes, giving much higher utilisation of formwork and speeding up construction times.
It is an ideal solution for projects such as road and rail renovation, where the use of Promptis enables possession of the area to be greatly reduced and the transport put back into operation relatively quickly. It is also suitable for precasting where structures can be demoulded and stored just 12 hours after pouring.
The properties of Promptis are the result of a mix of specialised superplasticiser, polymer and accelerator added to concrete that contains 400 – 450 kg per cu metre of cement.
Promptis has been launched globally rather than nationally, as it produces consistent results using a broad variety of cements, available in different countries. In addition there is global market demand, with Promptis suitable for use in both readymix and precast applications.
The product was developed by the company’s research and development team based at its Global Centre for Technology and Innovation in Switzerland, in conjunction with the UK technical team.
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