Curing is an Essential Part of Using Concrete During Construction. Done Correctly it Will Increase the Concrete’s Strength & Durability
To properly cure concrete, the ambient temperature must remain within a certain range. Concrete curing can take from five to seven days. Clean Electric Heaters are an ideal solution to speed up concrete curing in cold weather. Clean Electric Heaters provide a specific level of heat during cold weather and do not require ventilation of hazardous fumes.
According to the Concrete Floor Contractors Association*, “traditional methods often used were direct fired/open flame heaters that can often create a harmful buildup of both carbon monoxide and carbon dioxide fumes. Carbon monoxide poisoning occurs from exposure to these gases in enclosed spaces, creating extreme hazards for all tradespeople. Adequate ventilation with fresh air must be provided to avoid this condition. Although the use of indirect fired (ducted furnace type) heaters which use heat exchangers reduce these gases, gas levels should be monitored at all times.”
Freshly placed concrete must also be protected from carbon dioxide which can react with the concrete to produce a soft chalky surface through a chemical reaction process known as carbonization (production of calcium carbonate). There are no known threshold limits of carbon dioxide that can be monitored to avoid causing this problem.
Simply put, completely eliminating carbon monoxide and carbon dioxide fumes that not only cause potential health hazards but also significant structural problems with the concrete itself, is essential when concrete must be poured in winter months.
Heated enclosures may be necessary. These can be made of wood, canvas tarps, or polyethylene sheets—or you can use commercial rigid-plastic enclosures. Heating within the enclosure is best accomplished with electric heaters because they do not require ventilation or emit hazardous fumes. *http://www.concretefloors.ca/?page_id=548
Clean Electric Heat:
The safer, more efficient method.
Benefits of Electric Curing
• They deliver clean, dry air with no emissions.
• Temperature control is superior than open flame heaters.
• As a result, all concrete follows the same time/temperature curve.
• Maintenance is minimal compared to direct fired/open flame heaters.
• Electric systems are more efficient than open flame heaters.
• Over 90% of the electrical energy goes into the concrete.
• Reliability: Electric Heaters seldom fail during use.
• Fan circulated heated air throughout a room
• Some models can be ducted to direct the heated air.
WHAT IS AN ELECTRIC PORTABLE HEATER?
Electric heaters use resistive heat, offering high heating capacities of 17,000 – 102,000 BTU/hr.
They combine a heating element and a fan to circulate heated air throughout the space or some models can be ducted to direct the heated air to a specific location.
They deliver clean, dry air with no emissions.
Choosing the Right King Electric Industrial Portable.
King’s line of Ductable Portable Unit Heaters are constructed to hold up to the rigorous demands of jobsites or industrial facilities. These portable heaters can be ducted, to direct the heated air to required areas and are ideal for construction sites, warehouse and warehouse space heating, agriculture, events and military applications. The high CFM and low temperature rise are also key features to make the PKB-DT the best solution for temporary large capacity heating applications.
King’s PKBS Stainless Steel Portable Unit Heater is specially constructed for heating of, and freeze protection in, dirty, dusty or corrosive areas requiring periodic washing or hosedown. The heater is constructed from 18-gauge type 304 Stainless Steel and elements making it extremely corrosion resistant.
King’s line of Wheeled Portable Utility Heaters are easily moved throughout the jobsite and are constructed to hold up to the rigorous demands of a jobsite or industrial facility. The high CFM and low temperature rise are also key features for temporary large capacity heating applications. Spiral finned steel elements and high CFM ensure even air distribution producing cooler element operation, prolonging heater life.