Testing basalt rebar in combination with traditional and low carbon concrete, comparing with steel in the same conditions. Skanska constructed a temporary works access road using various concrete slab combinations.
Over the course of the trial the slabs were monitored for flexural strength, shear strength and pull out. In all cases the basalt rebar performed better than expected next to the steel reinforced slabs.
In terms of shear strength, the basalt rebar slabs held up better under an applied load than the steel reinforced slabs. The basalt rebar reinforced concrete reached a maximum strength of 141.5kN with classic concrete and 106.1kN with low carbon concrete, while steel-reinforced concrete reached 110.1kN and 97.5kN, respectively.
Credit: New Civil Engineer, May 9, 2023. By Rob Hakimian
The Construction Index: More information about the Trials and Results (and photo credit).
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