A review on carbonation study in concrete
N Venkat Rao,T Meena +1 more
- Vol. 263, Iss: 3, pp 032011
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TLDR
In this article, the authors have reviewed the carbonation studies which are a vital durability property of concrete and endeavoured to focus and elucidate the gravity of importance, the process and chemistry of carbonate and how the various parameters like water/cement ratio, curing, depth of concrete cones, admixtures, grade of concrete, strength and porosity effect carbonation in concrete.Abstract:
In this paper the authors have reviewed the carbonation studies which are a vital durability property of concrete. One of the major causes for deterioration and destruction of concrete is carbonation. The mechanism of carbonation involves the penetration carbon dioxide (CO2) into the concrete porous system to form an environment by reducing the pH around the reinforcement and initiation of the corrosion process. The paper also endeavours to focus and elucidate the gravity of importance, the process and chemistry of carbonate and how the various parameters like water/cement ratio, curing, depth of concrete cones, admixtures, grade of concrete, strength of concrete, porosity and permeability effect carbonation in concrete. The role of Supplementary Cementitious Materials (SCMs) like Ground granulated Blast Furnace Slag (GGBS) and Silica Fume (SF) has also been reviewed along with the influence of depth of carbonation.read more
Citations
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Review of Carbonation Resistance in Hydrated Cement Based Materials
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References
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Journal ArticleDOI
Experimental study on effects of CO2 concentrations on concrete carbonation and diffusion mechanisms
TL;DR: In this paper, the relationship between the depth of concrete carbonation and CO 2 concentration was investigated through the scanning electron microscopy (SEM) observations, which showed that carbonation decreased the porosity of concrete by clogging up the pores and reducing the pore sizes.
Journal ArticleDOI
Performance-based design and carbonation of concrete with high fly ash content
TL;DR: In this paper, a performance-based method was applied to design a concrete mixture with more than 50% substitution of cement by fly ash to cope with the high viscosity of the so-obtained mixture, an air-entraining agent was used.
Journal ArticleDOI
The influence of mineral admixtures on the short and long-term performance of concrete
Tahir Gönen,Salih Yazicioglu +1 more
TL;DR: In this paper, a laboratory study on the performance of concrete by adding mineral admixtures, silica fumes (SF) or/and fly ash (FA) was conducted, which showed that adding of both SF and FA slightly increased compressive strength, but contributed more to the improvement of transport properties of concretes.
Journal ArticleDOI
Sorptivity and strength of air-cured and water-cured PC–PFA–MK concrete and the influence of binder composition on carbonation depth
J. Bai,S. Wild,B.B. Sabir +2 more
TL;DR: In this paper, the influence of the composition of Portland cement and fuel ash-metakaolin binders on the development of concrete was investigated, and measured changes in the sorptivity of the concrete.
Journal ArticleDOI
Carbonation in concrete infrastructure in the context of global climate change – Part 1: Experimental results and model development
TL;DR: In this paper, a numerical model involving simultaneous solution of the transient diffusion and reaction equations of CO2 and Ca(OH)2 was developed to predict the depth of carbonation as a function of time.
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