Estimation of the permeability of silica fume cement concrete

Song, Hao; Pack, Seung-Woo; Nam, Sang-Hyeok; Jang, Jong-Chul; Saraswathy, V.

doi:10.1016/j.conbuildmat.2009.08.033

Cited by 154 publications

(60 citation statements)

References 17 publications

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“…This is a result of a denser microstructure provided by the hydration of the finer silica fume particles (Song et al, 2010). However, such blends perform poorly when exposed to magnesium sulfate (Al-Amoudi, 2002;Bonen and Cohen, 1992;Lee et al, 2005).…”

Section: Silica Fumementioning

confidence: 99%

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: Silica Fumementioning

confidence: 99%

Current knowledge of external sulfate attack

Whittaker

Black

2015

Advances in Cement Research

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“…Se tomaron en consideración los porcentajes óptimos de MK y SF propuestos por diferentes investigadores (Aguirre y Mejía, 2013;Torres-Agredo et al, 2011;Song et al, 2010;Siddique et al, 2009); se escogió en este trabajo un porcentaje único del 10% en reemplazo del cemento para cada una de las puzolanas mencionadas. La caracterización química de estos materiales, determinada por fluorescencia de rayos X (FRX), se presenta en la Tabla 1.…”

Section: Materialesunclassified

“…En general la movilidad de los iones cloruro dentro del concreto está relacionada con su permeabilidad; por ello algunos factores importantes a tener en cuenta en el diseño y colocación del concreto son: la relación agua/cemento, el tipo y proporción de cemento a utilizar y el proceso de curado Güneyisi et al, 2007). Además, la presencia de adiciones (puzolánicas y siderúrgicas) en el concreto, tales como metacaolín (MK) y humo de sílice (SF), modifican la porosidad y reducen la permeabilidad, mejorando por tanto la resistencia a la penetración de los cloruros en el concreto, aunque existen porcentajes límites de adición por encima del cual el incremento en la demanda de agua podría afectar los resultados (Angst et al, 2009;Aguirre y Mejía, 2013;Song et al, 2010).…”

Section: Introductionunclassified

Técnicas aceleradas para evaluar la susceptibilidad a corrosión de aceros embebidos en morteros con adiciones minerales expuestos a cloruros

2015

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“…The SF can produce both chemical and physical effects, which cause meaningful changes in the microstructure of concrete such as diminish of its permeability and improvement of its strength (Muller 2004). The addition of SF in concrete leads to reduction in porosity of the interfacial transition zone between matrix and aggregate in the fresh concrete and provides the microstructure needed for a strong transition zone (Song et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Effects of Silica Fume Content and Polymer-Binder Ratio on Properties of Ultrarapid-Hardening Polymer-Modified Mortars

Choi

Joo²,

Lho

2016

Int J Concr Struct Mater

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This paper deals with the effects of silica fume content and polymer-binder ratio on the properties of ultrarapidhardening polymer-modified mortar using silica fume and ethylene-vinyl acetate redispersible polymer powder instead of styrenebutadiene rubber latex to shorten the hardening time. The ultrarapid-hardening polymer-modified mortar was prepared with various silica fume contents and polymer-binder ratios, and tested flexural strength, compressive strength, water absorption, carbonation depth and chloride ion penetration depth. As results, the flexural, compressive and adhesion strengths of the ultrarapid-hardening polymer-modified mortar tended to increase as increasing polymer-binder ratio, and reached the maximums at 4 % of silica fume content. The water absorption, carbonation and chloride ion penetration resistance were improved according to silica fume content and polymer-binder ratio.

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Estimation of the permeability of silica fume cement concrete

Cited by 154 publications

References 17 publications

Current knowledge of external sulfate attack

Current knowledge of external sulfate attack

Técnicas aceleradas para evaluar la susceptibilidad a corrosión de aceros embebidos en morteros con adiciones minerales expuestos a cloruros

Effects of Silica Fume Content and Polymer-Binder Ratio on Properties of Ultrarapid-Hardening Polymer-Modified Mortars

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