Graphite Tailings Concrete Matches Ordinary Concrete on Reinforcement Bond at C60: Bond Strength Was 12.93 Percent Lower at C40 but Only 0.86 Percent Lower at C60 in Scientific Reports, Published November 13
Scientific Reports published a comparative study of the reinforcement bond performance and ecological properties of graphite tailings concrete and ordinary concrete on November 13, 2026. The paper, by Zeng, Xu, Li and co-authors, carries digital object identifier 10.1038/s41598-026-76074-y, was received on May 24, 2026 and accepted on October 12, 2026. The study investigated the feasibility of applying graphite tailings concrete in reinforced concrete structures, systematically evaluating its bond performance against normal concrete. The results indicate that, in terms of bond performance, the bond strength of graphite tailings concrete with ribbed reinforcement at the C40 grade decreased by 12.93 percent compared with normal concrete, while the peak slip increased by 39.4 percent. When the strength grade increased to C60, the bond strength of the two concretes was basically equivalent, with a decrease of only 0.86 percent, and the peak slip increase was 61.9 percent, indicating that a high-strength matrix can effectively suppress the negative effects of graphite tailings.
(Source: Scientific)
Source: Scientific
Published by GSM · USA (original Chinese edition)
Photo: 图：建筑工地混凝土施工与模板。Steve Pivnick, U.S. Air Force，公共领域，经 Wikimedia Commons。 / Photo: Steve Pivnick, U.S. Air Force, public domain, via Wikimedia Commons.
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