Long-term performance of cement paste during combined calcium leaching–sulfate attack: kinetics and size effect

Planel, D.; Sercombe, J.; Bescop, P. Le; Adenot, F.; Torrenti, Jean‐Michel

doi:10.1016/j.cemconres.2004.07.039

Cited by 120 publications

(63 citation statements)

References 9 publications

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“…As sulfates ingress inwards, calcium hydroxide leaches out of the cement paste, releasing Ca 2+ and OH À , plus alkalis (Adenot and Buil, 1992;Kamali et al, 2003Kamali et al, , 2008Planel et al, 2006;Revertegat et al, 1992;Roziere and Loukili, 2011). This is plotted in Figure 2, where the extent of leaching shows a linear relationship with the square root of time, typical of diffusionbased reactions.…”

Section: Leachingmentioning

confidence: 97%

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Current knowledge of external sulfate attack

Whittaker

Black

2015

Advances in Cement Research

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This paper offers an update of the current understanding of sulfate attack, with emphasis on the sulfates present in an external water source percolating through, and potentially reacting with, the cement matrix. The paper considers the explanations put forward to explain sulfate attack, both from a chemical and microstructural perspective.Similarly, this paper reviews work on the physical damage caused by the precipitation of sulfate salts in porous materials. With the increased use of binary and ternary blends, this paper also considers the impact of binder composition on sulfate resistance, and similarly reviews how the nature of the sulfate species can affect the nature and extent of any deterioration. This then leads on to the important consideration of differences between field-and lab-based studies, reviewing the effect of various experimental parameters on sulfate resistance. This latter topic is of great importance to anyone who wishes to carry out such experiments.

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Section: Leachingmentioning

confidence: 97%

“…Schmidt et al (2009) stated that the role of gypsum precipitation in cement exposed to a strongly sulfate solution was to open up cracks which were already present. Planel et al (2006), however, noticed the presence of gypsum in cement pastes exposed to a much lower concentration; that is, 0 . 015 mol/l (2 .…”

Section: Precipitation Of Gypsummentioning

confidence: 99%

Current knowledge of external sulfate attack

Whittaker

Black

2015

Advances in Cement Research

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“…Marchand et al analyzed the influence of sulfate on durability of concrete [4]. Planel et al obtained experimental results on micro-crack nucleation in cement mortar due to sulfate attack [5]. Rozière et al studied the mass evolution and expansion property of concrete under sulfate attack and calcium separating out [6].…”

Section: Introductionmentioning

confidence: 99%

Evolution of surface hardness of concrete under sulfate attack

Ouyang

Chen

Jiang

2014

Construction and Building Materials

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“…Sulphate attack has been experimentally evidenced [6] and then modeled considering a simplified chemo-mechanical coupling approach including damage initiation and growth [7].…”

Section: Gas Transfer In Clayey Materialsmentioning

confidence: 99%

Contribution to the French program dedicated to cementitious and clayey materials behavior in the context of Intermediate Level Waste management – Hydrogen transfer and materials durability

Bary

Bouniol

Chomat

et al. 2013

EPJ Web of Conferences

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Abstract. This article illustrates a contribution of the CEA Laboratory of Concrete and Clay Behavior ("LECBA") for the assessment and modeling of the Long-Term behavior of cementitious and clayey materials in the context of nuclear ILW (Intermediate Level Waste) management. In particular, we aim at presenting two main topics that are studied at the Lab. The first one is linked to safety aspects and concern hydrogen transfer within cementitious as well as clayey materials (host rock for French nuclear waste disposal). The second point concerns the assessment of durability properties of reinforced concrete structures in the disposal (pre-closure and post-closure) conditions. Experimental specific tests and phenomenological modelling are presented.

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Long-term performance of cement paste during combined calcium leaching–sulfate attack: kinetics and size effect

Cited by 120 publications

References 9 publications

Current knowledge of external sulfate attack

Current knowledge of external sulfate attack

Evolution of surface hardness of concrete under sulfate attack

Contribution to the French program dedicated to cementitious and clayey materials behavior in the context of Intermediate Level Waste management – Hydrogen transfer and materials durability

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