More stories about Precast/Prestressed Concrete Institute

  • Looking Back & Ahead

    Ten years, 120 covers. Being on the cover of a magazine is not all glitz and glamour. These people who agreed to our request to be photographed often posed for hours in the early morning. (That is when the lighting is best, our photographers say.) Sometimes it's bitter cold, other times it's hot...

  • Ties that Bond

  • PCI Showcase on Tap

  • Achieving Uniform Exposed-Aggregate Texture

    When making exposed-aggregate architectural precast channel column covers, we've noticed that after abrasive blasting, the texture on the down face differs from that on the vertical face. What causes this, and what can be done to correct it?

  • Alternatives to light abrasive blasting

    One of our architectural precast customers wants to remove a thin skin from the surface of narrow bands on cladding panels. He wants a surface effect that's similar to that achieved by light abrasive blasting, but masking off the larger areas that won't lose the skin will be time-consuming. Is...

  • Eliminating Swirls in Precast Panels

    We produce precast exposed-aggregate sandwich panels using concrete made with Type III cement, a 0.38 water-cementitious materials ratio and enough superplasticizer to achieve a 7- to 8-inch slump. The forming bed is made of wood. Using a bucket that passes down the center of the bed, we pour...

  • Causes of Aggregate Shadowing on Precast Products

    What causes aggregate shadowing or mottling on the form side of precast concrete? How can you minimize it?

  • Causes of crazing in architectural precast

    What causes crazing on architectural precast products? Does it affect structural integrity, or is it just an aesthetic problem? How do you minimize it without sacrificing the 5000-psi compressive strength usually specified for architectural precast products?

  • PCI Invests in Student Education

  • PCI's Precast Bridge Manual Breaks New Ground