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2016WinterShotcreteEMag

Technical Tip Fig. 1: Squeeze pump marine application Fig. 2: Squeeze pump foundation pouring Fig. 4: Squeeze pump underground spraying Jim Farrell is the Owner and CEO of Blastcrete Equipment Co. and Neal Manufacturing located in Anniston, AL. Blastcrete was founded in 1950 in Los Angeles, CA, and manufactured batch-type gunite machines until it was purchased by Farrell in 1983 and the business was moved to Anniston. Blastcrete is now a leading manufacturer of mixing, pumping, and spraying equipment, including squeeze pumps and swingtube pumps. Blastcrete also manufactures the original Piccola rotary dry-mix (gunite) machine. Blastcrete acquired Neal Manufacturing in 2013. Neal is a leading manufacturer of asphalt pavement maintenance mixing and pumping and spraying equipment. Fig. 3: Squeeze pump underground able as work tool attachments and can be operated off the auxiliary hydraulics from skid steer and hydraulic excavators. It does not require a high flow skid steer or excavator to operate a squeeze pump. Large pump attachments, with output of up to 25 yd3/h (19 m3/h), are used for the shotcreting of swimming pools. Smalleroutput squeeze pumps are popular in pumping hot epoxy mixed with fine aggregate for underwater marine piling repairs (Fig. 1 through 4). The versatility of hydraulic squeeze pumps allows for these pumps to operate in both forward and reverse, and the operator cannot damage the pump if the machine is run without material. The only part on the pump that comes in contact with the material is the inside of the rubber pumping tube, so cleaning is quick and simple. As a result, squeeze pumps can be used to pump all types of corrosive and abrasive materials. Shotcrete • Winter 2016 57


2016WinterShotcreteEMag
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