Assessment of the durability of concrete from its permeation properties: a review

Basheer, Lulu; Kropp, J.‐R.; Cleland, David

doi:10.1016/s0950-0618(00)00058-1

Cited by 588 publications

(238 citation statements)

References 11 publications

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“…En algunos trabajos, se ha documentado el uso de otros exponentes diferentes a t 0,5 , para obtener un mejor ajuste (24). La desviación de t 0,5 es debida a la complejidad de la microestructura y a que la difusión de Fick empieza a predominar en las pastas con un alto porcentaje en cemento.…”

Section: % Cal Tiempo De Carbonatación Total (H) Ca (Oh) 2 (G) Velociunclassified

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Estructura porosa y proceso de carbonatación en pastas mixtas de cal con diferente porcentaje de cemento

Arandigoyen¹,

Álvarez²

2006

Mater. construcc.

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Section: % Cal Tiempo De Carbonatación Total (H) Ca (Oh) 2 (G) Velociunclassified

“…Some authors have documented the use of exponents other than 0.5 for t, to achieve a better fit (24). The deviation in t 0.5 is due to microstructural complexities and to the fact that diffusion in the pastes with a high cement content tends to be governed by Fick's law.…”

Section: % Cal Tiempo De Carbonatación Total (H) Ca (Oh) 2 (G) Velocimentioning

confidence: 99%

Estructura porosa y proceso de carbonatación en pastas mixtas de cal con diferente porcentaje de cemento

Arandigoyen¹,

Álvarez²

2006

Mater. construcc.

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“…In several works the capillary process is used as indicative of the future degradation of buildings materials [2][3][4][5]. The capillary transport is the main driving mechanism for the chloride and the sulphate ions, and absorbed water by capillarity can be a problem as consequence of the freezing/thawing cycles.…”

Section: Introductionmentioning

confidence: 99%

Lime-pastes with different kneading water: Pore structure and capillary porosity

Arandigoyen

Bernal

Bello‐López

et al. 2005

Applied Surface Science

117

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ABSTRACT:Lime mortars to be used in restoration works of Cultural Heritage are being more and more studied. The knowledge on the lime pastes allows to understand the behaviour of the binder fraction. The aim of this work is to study the influence of the kneading water on two critical aspects of the lime-pastes: pore structure and capillary porosity, because both of them are related to the service life of the material, particularly with the moisture transport. Mercury intrusion porosimetry has been performed to establish the pore size distribution: one pore range has been checked in the different pastes tested, setting linear relationships between the pore diameter and the water/lime ratio.Fractal geometry has been used from the MIP results in order to evaluate the pore surface complexity, as a function of the kneading water. From the results, it can be concluded that kneading water is only responsible for a swelling of the structure, but it does not change the pore surface (keeping constant the surface fractal dimension). DIA analysis has been carried out, confirming the previous results. Finally, the correlation obtained between the capillary coefficient and the water/lime ratio confirms the postulated pore structure for the different amount of kneading water in lime-pastes.

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“…The long-term durability of concrete is largely governed by the resistance of concrete to various physical and chemical processes of deterioration. The interactions between these processes of deterioration become increasingly necessary to be considered in the evaluation of durability.With the fast development of data processing, the digital simulation found an application increasingly extended by modeling various processes of deterioration [1][2][3].However, all these digital models are specific programs describing only the processes considered, which limits their application to a broad variety of applications. Moreover, the analysis of the mechanical stresses induced by the deterioration process did not become available, which makes it impossible to evaluate the influence of acceleration of cracks on the deterioration of concrete and to predict the lifespan of the concrete structure after cracking.…”

mentioning

confidence: 99%

“…With the fast development of data processing, the digital simulation found an application increasingly extended by modeling various processes of deterioration [1][2][3].…”

mentioning

confidence: 99%

Mechanical stresses and crack analysis of concrete under the hygrothermic effect

Dahmani

2011

Strength Mater

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Êëþ÷åâûå ñëîâà: áåòîí, òåïëîïåðåíîñ, èçìåíåíèå âëàaeíîñòè, ðàñòðåñêèâà-íèå.Introduction. Various environmental loadings, such as variation in the ambient temperature, fluctuation of the relative humidity, the exposure to chemically harmful substances, etc., cause the progressive deterioration of the concrete structures. The long-term durability of concrete is largely governed by the resistance of concrete to various physical and chemical processes of deterioration. The interactions between these processes of deterioration become increasingly necessary to be considered in the evaluation of durability.With the fast development of data processing, the digital simulation found an application increasingly extended by modeling various processes of deterioration [1][2][3].However, all these digital models are specific programs describing only the processes considered, which limits their application to a broad variety of applications. Moreover, the analysis of the mechanical stresses induced by the deterioration process did not become available, which makes it impossible to evaluate the influence of acceleration of cracks on the deterioration of concrete and to predict the lifespan of the concrete structure after cracking.

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Assessment of the durability of concrete from its permeation properties: a review

Cited by 588 publications

References 11 publications

Estructura porosa y proceso de carbonatación en pastas mixtas de cal con diferente porcentaje de cemento

Estructura porosa y proceso de carbonatación en pastas mixtas de cal con diferente porcentaje de cemento

Lime-pastes with different kneading water: Pore structure and capillary porosity

Mechanical stresses and crack analysis of concrete under the hygrothermic effect

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