What people ask us about Structural Welded Wire Reinforcement (SWWR)

• How do I specify structural WWR for my projects?
• Where and how should I place structural WWR?
• What is the minimum cover or distance I should place the structural WWR from the top of the slab?
• Do I need support for structural WWR like I do for rebars?
  • What supports do I use for structural WWR?
  • What about wall spacers?
• What styles of structural WWR are suitable for placement on supports without deforming or displacing the reinforcing?
• Should I design one or two layers of structural WWR in my slabs?
  • What are the advantages of each or both?
• Will structural WWR guard against cracking due to impact loads when loading and shipping my precast products?
• Will structural WWR resist shrinkage cracking?
  • How about hardened or long-term shrinkage cracking?
• Does plastic shrinkage cracking go completely through the full depth of the slab?
• Will structural WWR bridge across joints to help transfer loads?
• Will cutting part of the wires at joints help relieve restraint and allow shrinkage to occur at the joints?
• Is structural WWR only considered for temperature & shrinkage reinforcement?
• Are the lighter WWR styles considered structural reinforcement?
• Can you determine a structural value even with lighter styles of structural WWR?
• Do you make larger styles than what most people consider as structural WWR?
• Can you weld 1/2 " or 5/8 " or even 3/4 " diameter wires?

Got a question? Get An Answer. If you have a question on how to use WWR or where to find more information, fill out our Technical Support form or write us at:

 

WRI
942 Main Street
Suite 300
Hartford, CT 06103