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  • Grooved Joints Blamed for Plow Damage

    Last summer, we built a slab-on-grade concrete parking lot. This winter, our finishing techniques are being blamed for damage caused by a plow during snow removal. The building supervisor is complaining about the joints that we hand-tooled. He's claiming

     
  • Replacing Hard Hats

    How frequently should I replace my crew's hard hats?

     
  • Waterproofing Versus Dampproofing

    What is the difference between waterproofing and dampproofing?