Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA)

Javier Castro; Pietro Lura; Farshad Rajabipour; Ryan Henkensiefken; Jason Weiss

Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA)

Javier Castro, Pietro Lura, Farshad Rajabipour, Ryan Henkensiefken, Jason Weiss

Civil and Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

21 Scopus citations

Abstract

Internal curing can be used to counteract the effects of self-desiccation in low water-cement ratio mixtures. Internal curing uses prewetted lightweight aggregate (LWA) as a reservoir that can release water as it is needed to keep the hydrating cement paste structure saturated. While many developments have been made in advancing the field of internal curing, this work examines the composition of the early-age pore solution. The effect of the pore solution composition on the relative humidity is also discussed. The paper performs desorption measurements of the lightweight aggregate to better understand how fluid is released from the lightweight aggregate. An approach is suggested to use solutions rather than pure distilled water to improve the relevance of the measurement of desorption at high relative humidities.

Original language	English (US)
Title of host publication	Advances in the Material Science of Concrete - Session at the ACI Spring 2010 Convention
Pages	89-100
Number of pages	12
Edition	270 SP
State	Published - 2010
Event	ACI Spring 2010 Convention - Chicago, IL, United States Duration: Mar 21 2010 → Mar 25 2010

Publication series

Name	American Concrete Institute, ACI Special Publication
Number	270 SP
ISSN (Print)	0193-2527

Other

Other	ACI Spring 2010 Convention
Country/Territory	United States
City	Chicago, IL
Period	3/21/10 → 3/25/10

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Building and Construction
General Materials Science

Cite this

Castro, J., Lura, P., Rajabipour, F., Henkensiefken, R., & Weiss, J. (2010). Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA). In Advances in the Material Science of Concrete - Session at the ACI Spring 2010 Convention (270 SP ed., pp. 89-100). (American Concrete Institute, ACI Special Publication; No. 270 SP).

Castro, Javier ; Lura, Pietro ; Rajabipour, Farshad et al. / Internal curing : Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA). Advances in the Material Science of Concrete - Session at the ACI Spring 2010 Convention. 270 SP. ed. 2010. pp. 89-100 (American Concrete Institute, ACI Special Publication; 270 SP).

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abstract = "Internal curing can be used to counteract the effects of self-desiccation in low water-cement ratio mixtures. Internal curing uses prewetted lightweight aggregate (LWA) as a reservoir that can release water as it is needed to keep the hydrating cement paste structure saturated. While many developments have been made in advancing the field of internal curing, this work examines the composition of the early-age pore solution. The effect of the pore solution composition on the relative humidity is also discussed. The paper performs desorption measurements of the lightweight aggregate to better understand how fluid is released from the lightweight aggregate. An approach is suggested to use solutions rather than pure distilled water to improve the relevance of the measurement of desorption at high relative humidities.",

author = "Javier Castro and Pietro Lura and Farshad Rajabipour and Ryan Henkensiefken and Jason Weiss",

year = "2010",

language = "English (US)",

isbn = "9781617389764",

series = "American Concrete Institute, ACI Special Publication",

number = "270 SP",

pages = "89--100",

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note = "ACI Spring 2010 Convention ; Conference date: 21-03-2010 Through 25-03-2010",

}

Castro, J, Lura, P, Rajabipour, F, Henkensiefken, R & Weiss, J 2010, Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA). in Advances in the Material Science of Concrete - Session at the ACI Spring 2010 Convention. 270 SP edn, American Concrete Institute, ACI Special Publication, no. 270 SP, pp. 89-100, ACI Spring 2010 Convention, Chicago, IL, United States, 3/21/10.

Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA). / Castro, Javier; Lura, Pietro; Rajabipour, Farshad et al.
Advances in the Material Science of Concrete - Session at the ACI Spring 2010 Convention. 270 SP. ed. 2010. p. 89-100 (American Concrete Institute, ACI Special Publication; No. 270 SP).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Internal curing

T2 - ACI Spring 2010 Convention

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AU - Lura, Pietro

AU - Rajabipour, Farshad

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AB - Internal curing can be used to counteract the effects of self-desiccation in low water-cement ratio mixtures. Internal curing uses prewetted lightweight aggregate (LWA) as a reservoir that can release water as it is needed to keep the hydrating cement paste structure saturated. While many developments have been made in advancing the field of internal curing, this work examines the composition of the early-age pore solution. The effect of the pore solution composition on the relative humidity is also discussed. The paper performs desorption measurements of the lightweight aggregate to better understand how fluid is released from the lightweight aggregate. An approach is suggested to use solutions rather than pure distilled water to improve the relevance of the measurement of desorption at high relative humidities.

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Castro J, Lura P, Rajabipour F, Henkensiefken R, Weiss J. Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA). In Advances in the Material Science of Concrete - Session at the ACI Spring 2010 Convention. 270 SP ed. 2010. p. 89-100. (American Concrete Institute, ACI Special Publication; 270 SP).

Internal curing: Discussion of the role of pore solution on relative humidity measurements and desorption of Lightweight Aggregate (LWA)

Abstract

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