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Effect of SAP on hardening process and development of microstructure in high performance concrete: a review

Guang Ye UGent and Klaas van Breugel (2009) 4th International conference on Construction Materials : performance, innovations and structural implications. p.497-502
abstract
The main purpose of Super Absorbent Polymer (SAP) added into high performance concrete is to prevent or reduce self-desiccation (or autogenous shrinkage) of concrete. The mechanism behind is free water release from saturated SAP lead to an increase of relative humility and to promote further hydration. Compared to plain cement paste, the added SAPs change hydration process and the development of microstructure in concrete. In this contribution, the degree of hydration of cement in cement composites containing SAP are reviewed. The influence of SAP on the development of microstructure properties, i.e. porosity, pore size distribution, morphology and connectivity of bulk cement paste and interface transition zone between cement paste and SPA, the voids introduced by SAP are discussed. It is concluded that the addition of SAP in the mixture increases the hydration degree of cement particle, this leads to a reduction of capillary porosity in the matrix and increase gel pore in the paste. The additional of SAP meanwhile increase the void in the ITZ between SAP and matrix. Micro-computer tomography image shows that the voids introduced by SAP in the mixture are homogenously distributed with an average diameter of 150 µm.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
High performance concrete, SAP, Hydration, Microstructure
in
4th International conference on Construction Materials : performance, innovations and structural implications
editor
C Oesterlee, E Denarié and E Brühwiller
article number
S2-1-5
pages
497 - 502
publisher
Japan Concrete Institute (JCI)
place of publication
Nagoya, Japan
conference name
4th International conference on Construction Materials : Performance, innovations and structural implications (ConMat '09)
conference location
Nagoya, Japan
conference start
2009-08-24
conference end
2009-08-26
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1000206
handle
http://hdl.handle.net/1854/LU-1000206
date created
2010-07-01 12:28:43
date last changed
2017-01-02 09:52:39
@inproceedings{1000206,
  abstract     = {The main purpose of Super Absorbent Polymer (SAP) added into high performance concrete is to prevent or reduce self-desiccation (or autogenous shrinkage) of concrete. The mechanism behind is free water release from saturated SAP lead to an increase of relative humility and to promote further hydration. Compared to plain cement paste, the added SAPs change hydration process and the development of microstructure in concrete. In this contribution, the degree of hydration of cement in cement composites containing SAP are reviewed. The influence of SAP on the development of microstructure properties, i.e. porosity, pore size distribution, morphology and connectivity of bulk cement paste and interface transition zone between cement paste and SPA, the voids introduced by SAP are discussed.
It is concluded that the addition of SAP in the mixture increases the hydration degree of cement particle, this leads to a reduction of capillary porosity in the matrix and increase gel pore in the paste. The additional of SAP meanwhile increase the void in the ITZ between SAP and matrix. Micro-computer tomography image shows that the voids introduced by SAP in the mixture are homogenously distributed with an average diameter of 150 {\textmu}m.},
  articleno    = {S2-1-5},
  author       = {Ye, Guang and van Breugel, Klaas},
  booktitle    = {4th International conference on Construction Materials : performance, innovations and structural implications},
  editor       = {Oesterlee, C and Denari{\'e}, E and Br{\"u}hwiller, E},
  keyword      = {High performance concrete,SAP,Hydration,Microstructure},
  language     = {eng},
  location     = {Nagoya, Japan},
  pages        = {S2-1-5:497--S2-1-5:502},
  publisher    = {Japan Concrete Institute (JCI)},
  title        = {Effect of SAP on hardening process and development of microstructure in high performance concrete: a review},
  year         = {2009},
}

Chicago
Ye, Guang, and Klaas van Breugel. 2009. “Effect of SAP on Hardening Process and Development of Microstructure in High Performance Concrete: a Review.” In 4th International Conference on Construction Materials : Performance, Innovations and Structural Implications, ed. C Oesterlee, E Denarié, and E Brühwiller, 497–502. Nagoya, Japan: Japan Concrete Institute (JCI).
APA
Ye, G., & van Breugel, K. (2009). Effect of SAP on hardening process and development of microstructure in high performance concrete: a review. In C. Oesterlee, E. Denarié, & E. Brühwiller (Eds.), 4th International conference on Construction Materials : performance, innovations and structural implications (pp. 497–502). Presented at the 4th International conference on Construction Materials : Performance, innovations and structural implications (ConMat  ’09), Nagoya, Japan: Japan Concrete Institute (JCI).
Vancouver
1.
Ye G, van Breugel K. Effect of SAP on hardening process and development of microstructure in high performance concrete: a review. In: Oesterlee C, Denarié E, Brühwiller E, editors. 4th International conference on Construction Materials : performance, innovations and structural implications. Nagoya, Japan: Japan Concrete Institute (JCI); 2009. p. 497–502.
MLA
Ye, Guang, and Klaas van Breugel. “Effect of SAP on Hardening Process and Development of Microstructure in High Performance Concrete: a Review.” 4th International Conference on Construction Materials : Performance, Innovations and Structural Implications. Ed. C Oesterlee, E Denarié, & E Brühwiller. Nagoya, Japan: Japan Concrete Institute (JCI), 2009. 497–502. Print.