Effect of Curing Conditions on the Service Life Design of RC Structures in the Persian Gulf Region

Alizadeh, Rouhollah; Ghods, Pouria; Chini, Mahdi; Hoseini, Meghdad; Ghalibafian, Mehdi; Shekarchi, Mohammad

doi:10.1061/(asce)0899-1561(2008)20:1(2)

Cited by 45 publications

(17 citation statements)

References 4 publications

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“…Chlorideinduced corrosion is believed to be the main reason for premature deterioration, and sometimes failure, of reinforced concrete structures constructed in this region [1][2][3]. The harsh climate of the Persian Gulf region can be described as having high temperatures, high evaporation rates and consequently high salinity of water, which increases the chloride induced reinforcement corrosion rates [4,5].…”

Section: Introductionmentioning

confidence: 99%

Long-term chloride diffusion in silica fume concrete in harsh marine climates

Shekarchi

Rafiee

Layssi

2009

Cement and Concrete Composites

118

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Section: Introductionmentioning

confidence: 99%

Long-term chloride diffusion in silica fume concrete in harsh marine climates

Shekarchi

Rafiee

Layssi

2009

Cement and Concrete Composites

118

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“…Zhang [10] revealed that adding silica fume to concrete dramatically enhanced the chloride resistance ability due to its densified internal structure, which was also supported by other researchers [11,27]. An experiment conducted in the Persian Gulf region suggested that the chloride diffusion coefficient and surface concentration varied with different exposure zones, and curing conditions had a significant effect on the chloride resistance [28,29]. However, most of these experiments only draw quantitative or phenomenological conclusions and lack any quantitative models, therefore, they cannot be used in practical durability design.In this paper, a new statistical analysis based model is proposed to predict chloride diffusion in offshore concrete structures, based on a large body of experimental results collected from various sources.…”

mentioning

confidence: 59%

Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis

Liu

et al. 2020

Materials

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Chloride-induced corrosion is the main threat to the service life of concrete structures. In order to better investigate chloride distribution in offshore concrete, this study proposed a new prediction model based on statistical analysis as well as a large body of experimental results collected from various sources. A detailed discussion found that the key influential parameters, such as diffusion coefficient ( D ), surface chloride concentration ( C S ) and penetration depth ( x ) are all highly time-dependent. The exposure zone, water–cement ratio and service time were also considered as relevant factors. The proposed model is then validated by two alternative tests and the results suggest that it is feasible in predicting the chloride content and penetration depth of concrete structures in a marine environment under chloride attack.

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“…Chloride-induced corrosion is recognised as the main reason for premature deterioration and failure of reinforced concrete structures constructed in this region (Alizadeh et al, 2008;Ghoddousi et al, 1998;Vaysburd and Emmons, 2004). To manage the associated problems and increase the longevity of concrete structures, the durability code, based on several research studies in the region and around the world, was issued (Ramezanianpour and Pourkhorshidi, 2005).…”

Section: Introductionmentioning

confidence: 96%

Transport properties of ternary concrete mixtures containing natural zeolite with silica fume or fly ash

Ahmadi

Sobhani²,

Shekarchi

et al. 2014

Magazine of Concrete Research

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This paper reports on an experimental investigation into the performance of ternary concrete mixtures containing combinations of natural zeolite with silica fume or fly ash. The performance of the ternary mixtures is compared with the performance of binary mixtures with only one type of supplementary cementitious material (SCM) and a control mixture without any SCM. The experimental programme included strength and transport property evaluations of a control mixture, binary mixtures with 7 . 5% silica fume or 10% natural zeolite or 20% fly ash as partial replacements of Portland cement, and ternary mixtures containing 5% natural zeolite with 5% silica fume or 10% natural zeolite with 10% fly ash as partial replacements of Portland cement. The results of the study reveal considerable improvements in the transport properties of concrete through replacing a portion of Portland cement with combinations of natural zeolite with silica fume or fly ash. Generally, the ternary mixtures showed superior transport properties to those of the control and binary mixtures. Their compressive strengths, however, were lower than those of the binary mixtures.

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Effect of Curing Conditions on the Service Life Design of RC Structures in the Persian Gulf Region

Cited by 45 publications

References 4 publications

Long-term chloride diffusion in silica fume concrete in harsh marine climates

Long-term chloride diffusion in silica fume concrete in harsh marine climates

Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis

Transport properties of ternary concrete mixtures containing natural zeolite with silica fume or fly ash

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