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Influence of Chemical Admixtures on the Drying Shrinkage of Concrete

Gettu, Ravindra / Roncero, Joana / Carol, Ignacio / Martín, Miguel A.

Measurements on cement mortars show that superplasticizers may lead to an increase in the drying shrinkage strains, which can, however, be compensated incorporating silica fume. On the other hand, the addition of a shrinkage reducing admixture reduces drying shrinkage considerably. A 50 % reduction in the absolute strains in concrete after one year of drying is obtained with 1.5 % of the admixture. The influence of chemical admixtures on drying shrinkage of concrete can be significant and is worth further study.

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Influence of Chemical Admixtures on the Drying Shrinkage of Concrete

Gettu, Ravindra / Roncero, Joana / Carol, Ignacio / Martín, Miguel A.

Measurements on cement mortars show that superplasticizers may lead to an increase in the drying shrinkage strains, which can, however, be compensated incorporating silica fume. On the other hand, the addition of a shrinkage reducing admixture reduces drying shrinkage considerably. A 50 % reduction in the absolute strains in concrete after one year of drying is obtained with 1.5 % of the admixture. The influence of chemical admixtures on drying shrinkage of concrete can be significant and is worth further study.

Influence of Chemical Admixtures on the Drying Shrinkage of Concrete

Gettu, Ravindra / Roncero, Joana / Carol, Ignacio / Martín, Miguel A.

Measurements on cement mortars show that superplasticizers may lead to an increase in the drying shrinkage strains, which can, however, be compensated incorporating silica fume. On the other hand, the addition of a shrinkage reducing admixture reduces drying shrinkage considerably. A 50 % reduction in the absolute strains in concrete after one year of drying is obtained with 1.5 % of the admixture. The influence of chemical admixtures on drying shrinkage of concrete can be significant and is worth further study.

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Title:

Influence of Chemical Admixtures on the Drying Shrinkage of Concrete

Contributors:

Wittmann, F. H. (editor) / Gettu, Ravindra (author) / Roncero, Joana (author) / Carol, Ignacio (author) / Martín, Miguel A. (author)

Published in:

Materials for Buildings and Structures ; 48-53

Publication date:

2000-04-20

Size:

6 pages

ISBN:

9783527606214 , 9783527301256

DOI:

https://doi.org/10.1002/3527606211.ch8

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

concrete , materials for buildings and structures , chemical admixtures , superplasticizers , drying shrinkage

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