In the past 25 years, vapor curing has grown with the success of the prestressed concrete industry. Kraft Energy™ has proudly served this industry for more than 15 years as a member of the PCI (Prestressed Concrete Institute).

Two Types of Systems
The traditional method of live steam curing, or vapor curing as we call it, has been supplemented with an additional system – ThermalCure™, which is a radiant heat system utilizing hot water in distribution pipes under the concrete form.

The features of vapor curing or live steam curing are:

1. High early strength development to allow for early strand de-tensioning and greater form (asset) utilization
2. Efficient heat transfer by using live steam which is the most efficient means of transferring heat energy – providing for a reduction in energy consumption
3. Reduction in maintenance and insurance costs versus a traditional boiler
4. Relatively inexpensive and simple distribution pipe layouts
5. Achieve curing temperatures up to 160°F (70°C)

The features of the ThermalCure™ or radiant heat system are:

1. Elimination of condensation on the floor of the production building
2. Recirculation of heated water is very efficient
3. Low corrosion rate of the steel distribution pipe
4. Achieve curing temperatures up to 120°F (50°C)
5. More involved distribution layouts due to increasing the pipe surface area to provide efficient heat transfer

Equipment
Kraft Energy™ has the equipment to meet every requirement, from basic two-speed vapor generators and state-of-the-art variable speed units to ThermalCure radiant heat systems. Either system may be paired with a colour Touch Screen User Interface, temperature sensors and/or VaporWare™ recording software.

Match Curing
Kraft Energy™ curing equipment may also be used in combination with the latest generation of test cylinder versus concrete product “match” curing control systems, taking all the guesswork out of concrete curing.

In addition to providing equipment to fit each customer’s need, Kraft Energy™ offers turnkey installation, which includes complete drawings, delivery and installation of equipment, as well as commissioning and training.