Slat University: Adding steel to precast concrete changes its properties

Slat University is a series of articles providing useful information on manufacturing, handling and maintaining concrete slats.
calendar icon 13 February 2019
clock icon 5 minute read

While rebar is the most common type of reinforcing steel used in poured-in-place concrete, welded wire reinforcement mats offer some distinct advantages when used in the production of concrete slats. Fabrication of WWR mats consists of welding steel rods into large sheets specific to each slat mold.

1) WWR mats are made from high tensile 80,000-psi steel wire formed by special equipment to the proper diameter and straightened. In comparison, rebar has a lower 60,000-psi rating.

2) By welding them into a mat, the rods do not move when concrete is placed, ensuring each bar is in its proper position.

3) Automated equipment located in a controlled environment prefabricates the WWR mats lowering the risk of improper welds that can affect the strength of the steel.

In general, using Welded Wire Reinforcement mats in the manufacturing of precast concrete slats yields a much more consistent product than production using individually placed rebar.

Psi of concrete refers to its compression strength
Psi of concrete refers to its compression strength
Steel possesses excellent tensile strength
Steel possesses excellent tensile strength
Welded Wire Mats have several advantages over rebar for slat production
Welded Wire Mats have several advantages over rebar for slat production
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