Proposal for classification of concrete quality based on accelerated carbonation tests
Reinforcement corrosion is a problem affecting the durability of most concrete structures. When concrete is employed without proper care, it may function inadequately as a barrier, allowing aggressive ions or acidic substances in the atmosphere to attack
Daniel V. Ribeiro +4 more
doaj +1 more source
Effect of Different CO2 Treatments on the Metal Leaching in Steel Slag Binders
Carbonation is an effective method to promote the quality of the steel slag binder. In this article, two carbonation approaches, namely hot-stage carbonation and accelerated carbonation, were employed to leach the metals, and the influence mechanism on ...
Yaojun Liu +5 more
doaj +1 more source
Accelerating the carbon cycle: the ethics of enhanced weathering [PDF]
Enhanced weathering, in comparison to other geoengineering measures, creates the possibility of a reduced cost, reduced impact way of decreasing atmospheric carbon, with positive knock-on effects such as decreased oceanic acidity. We argue that ethical concerns have a place alongside empirical, political and social factors as we consider how to best ...
Lawford-Smith, H, Currie, A
openaire +4 more sources
Behavior of cementitious mixtures with filler carbonate subjected to accelerated carbonation
Calcium carbonate limestone filler is used as a partial replacement for clinker in cements to reduce carbon dioxide emissions and fill the voids in the cement paste.
Munique Fante +8 more
doaj +1 more source
Carbonation Behaviour of Concrete Exposed to Natural and Accelerated Carbonation Conditions [PDF]
Carbonation is both one of the primary deterioration mechanisms in reinforced concrete structures and a method for sequestration of environmental CO2.
core +2 more sources
Improvement of Recycled Aggregates Properties by Means of CO2 Uptake
Concrete from deconstruction can have a second life in the form of recycled concrete aggregates (RCAs). They unfortunately have poor properties (high porosity and water absorption coefficient (WAC)) with respect to natural aggregates.
Marie Sereng +4 more
doaj +1 more source
Mineral carbonation from metal wastes: Effect of solid to liquid ratio on the efficiency and characterization of carbonated products [PDF]
Mineral carbonation technologies aim at permanently storing CO2 into materials rich in metal oxides. A multi-step mineralization process employing Ca-rich waste streams to precipitate calcium carbonate is investigated in this paper.
Dri, Marco +4 more
core +1 more source
Carbonate-bonded construction materials from alkaline residues
Accelerated carbonation is a rapidly developing technology that is attracting attention as it uses CO2 as a binder to make construction materials. Originally stemming from geochemical and environmental research into CO2 sequestration or waste remediation,
Peter Nielsen +4 more
doaj +1 more source
Accelerated and natural carbonation of concrete with high volumes of fly ash: chemical, mineralogical and microstructural effects [PDF]
Today, a rather poor carbonation resistance is being reported for high-volume fly ash (HVFA) binder systems. This conclusion is usually drawn from accelerated carbonation experiments conducted at CO2 levels that highly exceed the natural atmospheric CO2 ...
Philip Van den Heede +2 more
doaj +1 more source
Canada’s mineral reserves can play a very important role in curbing climate change if natural alkaline minerals are used for the process of mineral carbonation.
Ye Eun Chai +3 more
doaj +1 more source

