Masonry Magazine March 2011 Page. 24
MIXERS, PUMPS AND DELIVERY SYSTEMS
Add either a neat cement slurry or hose primer/pumping aid to the pump hopper, and then insert the end of the hose into the material hopper (be sure primer is compatible with material to be used).
Re-circulate the slurry/primer by pumping a few strokes through the hose and back into the hopper.
After successful priming of the pump, connect any remaining lengths of hose, and add the material for core filling to the grout pump's material hopper. Circulating the material through the hose and back into the hopper is recommended, until you are sure the material is correct.
Making full use of the grout pump: hoisting
IN ADDITION TO pumping grout or mortar for core filling, contractors now are using grout pumps for hoisting mortar to the scaffolding. This technique allows the contractor to move mortar up the scaffolds onto the floor levels and into a trough to be used by the masons laying the block. Hoisting mortar with the grout pump can eliminate waiting time that masons often experience on a job. On many jobs the masons are constantly waiting for mortar to get to them, because cranes are being tied up performing double duty-lifting block and mortar into place. Use of the grout pump to hoist the mortar takes some of the load off of the crane. This allows the mason contractor to more efficiently distribute materials where they are needed most. The use of two pumps on the jobsite may even allow the contractor to grout the walls and lay block at the same time with the same material. IMAS
Todd Ferguson is marketing manager for Mesa Industries Inc., parent company of four divisions, Airplaco Equipment Co., Gunite Supply, Mesa Rubber Co. and Mesa Fabrics. For more information, call 513-321-2950.
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Product Watch
Skid Steer Pump
Blastcrete Equipment Co.'s Model RD6536 Skid Steer Pump Attachment features a universal design compatible with any skid steer. The three-inch hydraulic squeeze pump is ideal for ICF, block fill, form and pour, driveways, basements and various shotcrete applications.
With the ability to pump grout materials, 3/8-inch shotcrete and 3/4-inch structural concrete mixes, the RD6536 is a fast, efficient solution for contractors performing a variety of concrete and shotcrete applications. The unit offers a variable speed of 0-25 cubic yards per hour. Vertical pumping distance reaches 50 feet with the use of a rubber delivery line, while horizontal distance can reach up to 250 feet.
A hydraulic agitator is included in the receiving hopper. The agitator's continuous motion keeps the mix well-blended, ensuring aggregate and sand stay evenly suspended throughout the mix. Not only does this result in high-strength concrete, it keeps the aggregate and sand from settling to the bottom of the hopper and clogging near the suction area.
To relieve pressure build-up clogs and eliminate potential damage to the pump, the RD6536 can be run in both forward and reverse. Hydraulically powered controls are located on the pump and also operate both agitator and pump speed.
Maintenance requirements for the RD6536 are simple, and clean-up takes just minutes. The steel-constructed unit is designed to prevent any concrete from coming in contact with the pump's moving parts, further reducing maintenance concerns and ensuring a long service life. The primary wear part, the rubber pumping tube, can be easily replaced on the jobsite in about 20 minutes. Using just water and a sponge ball, the pump can be cleaned out in about five minutes. IMAS
Visit www.blastcrete.com for more information.
Take the Grunt out of Grouting!!!
Grout Grunt™
The Faster, More Ergonomic way to Hand-Deliver Grout.
"Scoop, Pass, Pour"
Grouting has become that simple!!!
Grout Grunt™ is a dual-handled plastic scoop that quickly and efficiently scoops, transfers, and pours mixed grout, mortar, sand, or any high density material.
* Grout faster, easier, and cleaner!
* Transfers 0.5 cubic foot each scoop!
* Weighs under 3 pounds, washes clean with ease
* Saves time (50% faster), makes money
www.groutgrunt.com or call 877.266.6432
DEALERS WANTED AVAILABLE IN CANADA
READER SERVICE #239