Tools/Parts Needed To Repair Concrete Cracks - Part 1

A concrete crack repair blade is one of the tools that you will need to repair concrete cracks not only on your reinforced concrete roof but also on columns, floor beams or floor slabs.  Preparing the concrete surface prior to applying the repair mortar involves cutting back the parent concrete until you can put your finger between the steel reinforcement bars and the parent concrete.  It is not easy when doing it manually.  You need to do it with a mechanical tool that uses a concrete crack repair blade as shown on your left.  The product weighs one pound with a length of 6 inches and a width of 0.375 inch.  The part is numbered D22403.  This crack repair blade is made to set new performance standards.  It is used for a wide range of cured concrete.  The manufacturer has secured the patented Z-Triangle arbor on the blade that prevents the blade from turning and the arbor eliminates the need to replace expensive spindle shafts.



For steel surface preparation, you might also want to get yourself a electric grinder or polisher to clean the rust from the corroded steel reinforcement bars.  It weighs 8.5 lbs, 19.5 inch long, 8.3 inch wide and 4.9 inch high.  The heavy duty DEWALT DW849 12-amp 7/9-inch right-angle polisher performs smoothly and consistently with heat-treated, precision-cut gears and powerful all-ball bearing motor.



Features of the grinder/polisher:

• Powerful 8 amp, all-ball-bearing motor for long life
• Electronic module maintains specified speed even under load
• Conveniently located variable-speed dial lets user set maximum speed, from 1,000 to 3,000, for different materials and applications
• Variable-speed trigger allows user to instantly control speed from 0 to dialed setting
• Heat-treated, precision-cut gears for smooth operation
• External brush caps for easy servicing
• Spindle lock for easy pad changing

Specifications:

• Amps: 8 AC amps
• Max. watts out: 1,400 watts
• No-load speed: 0 to 1,000 / 0 to 3,000 rpm
• Spindle thread: 5/8-inch-11
• Spindle lock: yes
• Tool length: 17.3 inches
• Tool weight: 8.25 lbs.

Includes:

• 2-position side handle
• Rubber backing pad
• Clamp nut

This DeWalt high-performance industrial tool comes with a 30-day no-risk satisfaction guarantee, one year free service contract and one year warranty.