Results 1 to 10 of about 1,779 (119)

Autogenous shrinkage revisited [PDF]

open access: yes, 2020
In the 1990s it became generally accepted in the scientific community that autogenous shrinkage is a major reason for cracking observed during hardening of high-performance concrete [1, 2].
O. M. Jensen, Jensen, O.M.
core   +3 more sources

Autogenous shrinkage of alkali-activated slag: A critical review [PDF]

open access: yesCement and Concrete Research, 2023
This paper provides a critical review on autogenous shrinkage of alkali-activated slag (AAS). It is reported that AAS paste, mortar, and concrete generally show larger autogenous shrinkage than Portland cement (PC) counterparts.
Zhenming Li   +2 more
exaly   +3 more sources

Mitigating the Drying Shrinkage and Autogenous Shrinkage of Alkali-Activated Slag by NaAlO2 [PDF]

open access: yesMaterials, 2020
The shrinkage of alkali-activated slag (AAS) is obviously higher than ordinary Portland cement, which limited its application in engineering. In this study, the effects of NaAlO2 in mitigating drying shrinkage and autogenous shrinkage of AAS were studied.
Jun Wang, Bin Chen, Jinyou Zhao
core   +3 more sources

Autogenous shrinkage of high performance concrete: A review

open access: yesConstruction and Building Materials, 2017
Autogenous shrinkage is a major concern in early age cracking of high performance concrete (HPC). Low water-to-binder ratio and incorporation of supplementary cementitious materials (SCMs) can remarkably affect the pore structure, relative humidity, self-
Linmei Wu, Nima Farzadnia, Caijun Shi
exaly   +2 more sources

Autogenous shrinkage in cementitious systems

open access: yes, 2009
Autogenous shrinkage is of concern in high performance concrete mixtures, when specific properties like strength and durability are enhanced. Factors like low watercement ratio, low porosity and increased hydration kinetics which are associated with ...
Rajayogan, Vinod
core   +3 more sources

Early age autogenous shrinkage of concrete:Dissertation

open access: yes, 2001
Volume change of concrete resulting from structural and environmental factors is an acceptable phenomenon. In the majority of cases this volume change, or shrinkage, is assumed to begin at the time of loading or drying.
Holt, Erika; id_orcid
core   +4 more sources

Autogenous shrinkage of CARDIFRCRTM [PDF]

open access: yes
Durability requirements have become a major issue in the design of concrete structures today. The hardening process plays a key role in the quality of the concrete.
Kanellopoulos, Antonios
core   +1 more source

Autogenous Shrinkage of Concrete at Early Ages [PDF]

open access: yes, 2019
© 2020, Springer Nature Singapore Pte Ltd. High Performance Concrete (HPC), particularly high strength concrete mixes (60–100 MPa) containing high cementitious content and low w/b ratios (0.40–0.25) is used for some precast elements.
N. Gowripalan, Gowripalan, N
core   +2 more sources

Mitigation strategies for autogenous shrinkage cracking

open access: yesCement and Concrete Composites, 2004
As the use of high-performance concrete has increased, problems with early-age cracking have become prominent. The reduction in water-to-cement ratio, the incorporation of silica fume, and the increase in binder content of high-performance concretes all ...
Bentz, D.P.   +2 more
core   +3 more sources

Analysis of Autogenous and Drying Shrinkage of Concrete [PDF]

open access: yes, 2009
Concrete undergoes volume change as it changes phases from plastic to solid. Volume change due to water movement and losses within the concrete are referred to as chemical and autogenous shrinkage and drying and plastic shrinkage are due to water ...
Khairallah, Rabih S.
core   +2 more sources

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