Hot Box Reclaimers

Pavement contractors can extend their season, lengthen the life of pavement repairs and earn greater profits on some jobs by adding a hot box reclaimer to their fleet to make permanent patches to asphalt. This article discusses some options to consider when choosing a hot box reclaimer. There are two types of hot boxes on the market. A regular hot box, also known as a "holding box," is designed simply to hold hot mix asphalt that is already heated. Hot boxes are usually insulated but do not have any heat source. They are designed to transport hot mix from the plant to the jobsite and are suited only for material that will be used within a few hours. A hot box reclaimer, in contrast, is not only insulated but it is thermostatically controlled. It can be used to maintain the temperature of fresh hot mix over an extended period of time, but its greatest advantage is its ability to heat cold virgin mix to workable temperatures at any time of the year. Most contractors aware of hot box reclaimers know of them as part of an infrared unit, which are used extensively throughout the winter to repair potholes when hot mix plants are shut down. However, hot box reclaimers can be just as valuable on their own. Being able to get hot mix before the plants open is a tremendous advantage. Also, the paver can stockpile virgin asphalt for later use. Heat in the hot box reclaimer is generated either through propane or diesel. Manufacturers generally offer both types of heating systems and both work equally well. Contractors should take into consideration that diesel will reclaim somewhat quicker, but propane is cleaner and easier to work with. Hot box reclaimers are available in sizes ranging from 2 tons to 10 tons and in trailer, skid, and truck-mounted models.


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  • Accession Number: 01155388
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 21 2010 7:52AM