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Citations since 2016
7 Research Items
The long-term corrosion behaviour of reinforcing steel embedded in alkali-activated mortars (AAMs) prepared with three different binder compositions was monitored over a 360-day period by cyclic wetting/drying and spraying with chloride solution. Corrosion potential and polarisation resistance were determined by linear polarisation, individual resi...
This study aims to evaluate the influence of microstructural properties on the chloride diffusion resistance of alkali activated materials (AAMs) based on blast furnace slag and/or fly ash, with variable activator doses (represented as Na2O%). Resistance to chloride penetration was tested using accelerated chloride penetration (NT BUILD 443) and ch...
Resistance to chloride penetration plays a crucial role in preventing premature corrosion of reinforced concrete in marine environments or when using de-icing salts. For reinforced concrete with ordinary Portland cement (OPC), the curing of concrete is vital in ensuring that the designed chloride penetration resistance of concrete is achieved. The...
The aim of this paper is to make an initial evaluation of chloride-induced corrosion behaviour of steel in alkali-activated fly ash and compare it to behaviour of classical cement mortar. Fly ash used in this research was obtained from regional production and was activated with sodium silicate and sodium hydroxide. Setup for evaluating corrosion be...
The low environmental impact and high long-term performance of products are becoming imperative for the sustainable development of the construction industry. Alkali-activated materials (AAMs) are one of the available low-embodied-carbon alternatives to Portland cement (OPC). For their application in the marine environment or where de-icing salts ar...
Alkali-activated materials are a group of alternative binders based on aluminosilicate precursor and an alkali activator. Since precursors are mostly waste materials and by-products, AAMs are consideredto be a valid and more environmental-friendly alternative to Portland cement. Although the AAMs show good performance, there are not enough studies...
The design, durability and performance of structures play a crucial role in fostering societal and economic growth. Concrete structures are used extensively for buildings, transport, infrastructure and maritime applications. By using concrete extraordinary structures can be realised, and these are often designed for long service lives to gain optimal value from the material, environmental, intellectual and financial input into the making of the structure. In Europe, around 4 tonnes of concrete per capita are consumed annually. The downside of using concrete is associated with durability issues and huge environmental costs, as the cement industry accounts for 8% of global anthropogenic carbon dioxide emissions; and around 60% of all non-renewable resources are used in construction, making it one of the least sustainable industries. There is a clear demand for a new, sustainable generation of construction materials, since Ordinary Portland Cement (OPC)-based concrete cannot meet all the challenges of modern society concerning durability and sustainability. The DuRSAAM action addresses this by establishing a training and research network contributing to a sustainable built environment using AAM concrete.