Measurement of water transport from saturated pumice aggregates to hardening cement paste

Pietro Lura; Dale P. Bentz; David A. Lange; Konstantin Kovler; Arnon Bentur; Klaas Van Breugel

doi:10.1617/s11527-006-9137-5

Measurement of water transport from saturated pumice aggregates to hardening cement paste

Pietro Lura, Dale P. Bentz, David A. Lange, Konstantin Kovler, Arnon Bentur, Klaas Van Breugel

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In internal water curing of High Performance Concrete, it is fundamental to know how and when the water contained in the internal curing agent is released into the hydrating cement paste. In this study, X-ray absorption measurements showed that considerable transport of water from saturated pumice stone to hydrating cement paste with water/cement ratio 0.3 took place in the first days after casting and covered a distance of at least 4 mm. As a consequence, the total amount of water released by the lightweight aggregates, rather than the spatial distribution of the aggregates, is in this case the crucial factor to avoid self-desiccation shrinkage at early-age.

Original language	English (US)
Pages (from-to)	861-868
Number of pages	8
Journal	Materials and Structures/Materiaux et Constructions
Volume	39
Issue number	9
DOIs	https://doi.org/10.1617/s11527-006-9137-5
State	Published - Nov 2006

Keywords

Autogenous strain
Curing
High-performance concrete
Shrinkage

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science
Mechanics of Materials

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10.1617/s11527-006-9137-5

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title = "Measurement of water transport from saturated pumice aggregates to hardening cement paste",

abstract = "In internal water curing of High Performance Concrete, it is fundamental to know how and when the water contained in the internal curing agent is released into the hydrating cement paste. In this study, X-ray absorption measurements showed that considerable transport of water from saturated pumice stone to hydrating cement paste with water/cement ratio 0.3 took place in the first days after casting and covered a distance of at least 4 mm. As a consequence, the total amount of water released by the lightweight aggregates, rather than the spatial distribution of the aggregates, is in this case the crucial factor to avoid self-desiccation shrinkage at early-age.",

keywords = "Autogenous strain, Curing, High-performance concrete, Shrinkage",

author = "Pietro Lura and Bentz, {Dale P.} and Lange, {David A.} and Konstantin Kovler and Arnon Bentur and {Van Breugel}, Klaas",

note = "Funding Information: The funding of the United States–Israel Binational Science Foundation (BSF), project {\textquoteleft}{\textquoteleft}Autogenous Curing of High Strength Cementitious Materials by Means of Lightweight Micro-Aggregates Acting as Internal Water Reservoirs{\textquoteright}{\textquoteright} is gratefully acknowledged.",

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doi = "10.1617/s11527-006-9137-5",

language = "English (US)",

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T1 - Measurement of water transport from saturated pumice aggregates to hardening cement paste

AU - Lura, Pietro

AU - Bentz, Dale P.

AU - Lange, David A.

AU - Kovler, Konstantin

AU - Bentur, Arnon

AU - Van Breugel, Klaas

N1 - Funding Information: The funding of the United States–Israel Binational Science Foundation (BSF), project ‘‘Autogenous Curing of High Strength Cementitious Materials by Means of Lightweight Micro-Aggregates Acting as Internal Water Reservoirs’’ is gratefully acknowledged.

PY - 2006/11

Y1 - 2006/11

N2 - In internal water curing of High Performance Concrete, it is fundamental to know how and when the water contained in the internal curing agent is released into the hydrating cement paste. In this study, X-ray absorption measurements showed that considerable transport of water from saturated pumice stone to hydrating cement paste with water/cement ratio 0.3 took place in the first days after casting and covered a distance of at least 4 mm. As a consequence, the total amount of water released by the lightweight aggregates, rather than the spatial distribution of the aggregates, is in this case the crucial factor to avoid self-desiccation shrinkage at early-age.

AB - In internal water curing of High Performance Concrete, it is fundamental to know how and when the water contained in the internal curing agent is released into the hydrating cement paste. In this study, X-ray absorption measurements showed that considerable transport of water from saturated pumice stone to hydrating cement paste with water/cement ratio 0.3 took place in the first days after casting and covered a distance of at least 4 mm. As a consequence, the total amount of water released by the lightweight aggregates, rather than the spatial distribution of the aggregates, is in this case the crucial factor to avoid self-desiccation shrinkage at early-age.

KW - Autogenous strain

KW - Curing

KW - High-performance concrete

KW - Shrinkage

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Measurement of water transport from saturated pumice aggregates to hardening cement paste

Abstract

Keywords

ASJC Scopus subject areas

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