Tae-Hyun Ha, Srinivasan Muralidharan , Jeong-Hyo Bae, Yoon-Cheol Ha, Hyun-Goo Lee, Kyung Wha Park, Dae-Kyeong Kim
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引用次数: 43
Abstract
The increase in activated carbon content accelerated the corrosion of rebar (steel) in ordinary Portland cement (OPC) mortar containing fly ash and different percentages of carbon. The alkalinity of the cement was greatly affected with increased carbon contents, and when the quantity of carbon was increased, cement lost its characteristic colour. For the exposure period of one year, more than 60% of the surface area was rusted when the carbon content was increased beyond 8%. Corrosion rates comparable to OPC were obtained for up to 6% carbon level. Therefore it was concluded that the upper limit of replacement for various admixed carbon systems, under aggressive alternate wetting and drying conditions with 3% NaCl, was 6–8%.
期刊介绍：
Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged.
Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.
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