APE August 2020 | Page 36

ASPHALT ANSWERS While large asphalt distributor trucks are efficient for some jobs, many asphalt companies prefer a smaller unit for commercial jobs. { } TACK together AC also only needs tank circulation to keep it heated and mixed. A tank that can spray AC most likely will also spray emulsion if it has temperature controls that allow it to. Crack fillers or rubberized material is a highly specialized product used to fill cracks and seal joints. Most of this material comes in solid blocks and require heat around 400 degrees to allow it to flow. Equipment used for this type of material is also are very specialized. These units will have a double walled tank with heating oil in the middle. Once the material is hot enough to flow it is pumped through or emulsion is nothing more than water and tar mixed using a chemical called an emulsifier. a wand and injected into the crack. You should never put Rubberized material through an AC or tack tank. Neither type of unit gets hot enough to allow material to flow. The last of these products is driveway sealer. Driveway sealer does not require any heat but most products have sand added to them for antiskid proposes. This material requires regular agitation and the equipment normally has some kind of wiper paddles to help keep the sand suspended in the material. They normally have a diaphragm pump versus a rotary pump. A diaphragm pump is made to handle the abrasiveness of sand. Of course with no heat you would not put any of the above material through a sealcoat machine. Normally I get the question can I put sealcoat material through one of the above machines. The answer is I would not recommend it. Bottom line if you have an existing piece of equipment and want to find a way to utilize it in other ways, it would be best to check with the manufacturer. Tony Wight, LeeBoy Territory Manager and can be contacted at [email protected]. www.callape.com [36] 1.800.210.5923