Effect of fly ash and superabsorbent polymer on concrete carbonation

P. Chindasiriphan; H. Yokota

doi:10.1007/978-981-15-8079-6_171

Effect of fly ash and superabsorbent polymer on concrete carbonation

P. Chindasiriphan
, H. Yokota

Hokkaido University

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

1 Citation (Scopus)

Abstract

Superabsorbent polymer (SAP) is a multipurpose water-entraining agent, which is used for mitigating autogenous shrinkage in concrete, including its applications to mitigate frost damage and enhance self-healing capability. Despite its benefits, SAP also has some negative effects on concrete properties. For example, initial swelling of SAP generates SAP pores that would be a bypass allowing harmful agents to penetrate into concrete. Fly ash enhances self-healing capability of concrete but it reduces concrete alkalinity because the pozzolanic reaction consumes calcium hydrate in the concrete. This study investigates the risk of carbonation of self-healed concrete mixed with fly ash and SAP. Experimental tests were conducted in which cement mortar was cast with varying fly ash and SAP contents. A crack was induced by a mechanical load. The cracked specimens were cured in water and stored in air for 2 years. Carbonation resistance was evaluated by carbonation depth measurement and thermogravimetric/differential thermal analysis. It was found that carbonation resistivity is decreased in self-healed con- crete mixed with fly ash and SAP.

Original language	English
Title of host publication	EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
Editors	Chien Ming Wang, Sritawat Kitipornchai, Vinh Dao
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	1863-1872
Number of pages	10
ISBN (Print)	9789811580789
DOIs	https://doi.org/10.1007/978-981-15-8079-6_171
Publication status	Published - 2021
Externally published	Yes
Event	16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 - Brisbane, Australia Duration: 3 Dec 2019 → 6 Dec 2019

Publication series

Name	Lecture Notes in Civil Engineering
Volume	101
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
Country/Territory	Australia
City	Brisbane
Period	3/12/19 → 6/12/19

Keywords

Carbonation
Durability
Fly ash
Superabsorbent polymer

Access to Document

10.1007/978-981-15-8079-6_171

Cite this

Chindasiriphan, P., & Yokota, H. (2021). Effect of fly ash and superabsorbent polymer on concrete carbonation. In C. M. Wang, S. Kitipornchai, & V. Dao (Eds.), EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 (pp. 1863-1872). (Lecture Notes in Civil Engineering; Vol. 101). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-15-8079-6_171

Chindasiriphan, P. ; Yokota, H. / Effect of fly ash and superabsorbent polymer on concrete carbonation. EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. editor / Chien Ming Wang ; Sritawat Kitipornchai ; Vinh Dao. Springer Science and Business Media Deutschland GmbH, 2021. pp. 1863-1872 (Lecture Notes in Civil Engineering).

@inproceedings{e2c8b0d4b48d41a8a4520e76d284eb9e,

title = "Effect of fly ash and superabsorbent polymer on concrete carbonation",

abstract = "Superabsorbent polymer (SAP) is a multipurpose water-entraining agent, which is used for mitigating autogenous shrinkage in concrete, including its applications to mitigate frost damage and enhance self-healing capability. Despite its benefits, SAP also has some negative effects on concrete properties. For example, initial swelling of SAP generates SAP pores that would be a bypass allowing harmful agents to penetrate into concrete. Fly ash enhances self-healing capability of concrete but it reduces concrete alkalinity because the pozzolanic reaction consumes calcium hydrate in the concrete. This study investigates the risk of carbonation of self-healed concrete mixed with fly ash and SAP. Experimental tests were conducted in which cement mortar was cast with varying fly ash and SAP contents. A crack was induced by a mechanical load. The cracked specimens were cured in water and stored in air for 2 years. Carbonation resistance was evaluated by carbonation depth measurement and thermogravimetric/differential thermal analysis. It was found that carbonation resistivity is decreased in self-healed con- crete mixed with fly ash and SAP.",

keywords = "Carbonation, Durability, Fly ash, Superabsorbent polymer",

author = "P. Chindasiriphan and H. Yokota",

note = "Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2021.; 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 ; Conference date: 03-12-2019 Through 06-12-2019",

year = "2021",

doi = "10.1007/978-981-15-8079-6\_171",

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Chindasiriphan, P & Yokota, H 2021, Effect of fly ash and superabsorbent polymer on concrete carbonation. in CM Wang, S Kitipornchai & V Dao (eds), EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. Lecture Notes in Civil Engineering, vol. 101, Springer Science and Business Media Deutschland GmbH, pp. 1863-1872, 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019, Brisbane, Australia, 3/12/19. https://doi.org/10.1007/978-981-15-8079-6_171

Effect of fly ash and superabsorbent polymer on concrete carbonation. / Chindasiriphan, P.; Yokota, H.
EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. ed. / Chien Ming Wang; Sritawat Kitipornchai; Vinh Dao. Springer Science and Business Media Deutschland GmbH, 2021. p. 1863-1872 (Lecture Notes in Civil Engineering; Vol. 101).

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

TY - GEN

T1 - Effect of fly ash and superabsorbent polymer on concrete carbonation

AU - Chindasiriphan, P.

AU - Yokota, H.

N1 - Publisher Copyright: © Springer Nature Singapore Pte Ltd. 2021.

PY - 2021

Y1 - 2021

N2 - Superabsorbent polymer (SAP) is a multipurpose water-entraining agent, which is used for mitigating autogenous shrinkage in concrete, including its applications to mitigate frost damage and enhance self-healing capability. Despite its benefits, SAP also has some negative effects on concrete properties. For example, initial swelling of SAP generates SAP pores that would be a bypass allowing harmful agents to penetrate into concrete. Fly ash enhances self-healing capability of concrete but it reduces concrete alkalinity because the pozzolanic reaction consumes calcium hydrate in the concrete. This study investigates the risk of carbonation of self-healed concrete mixed with fly ash and SAP. Experimental tests were conducted in which cement mortar was cast with varying fly ash and SAP contents. A crack was induced by a mechanical load. The cracked specimens were cured in water and stored in air for 2 years. Carbonation resistance was evaluated by carbonation depth measurement and thermogravimetric/differential thermal analysis. It was found that carbonation resistivity is decreased in self-healed con- crete mixed with fly ash and SAP.

AB - Superabsorbent polymer (SAP) is a multipurpose water-entraining agent, which is used for mitigating autogenous shrinkage in concrete, including its applications to mitigate frost damage and enhance self-healing capability. Despite its benefits, SAP also has some negative effects on concrete properties. For example, initial swelling of SAP generates SAP pores that would be a bypass allowing harmful agents to penetrate into concrete. Fly ash enhances self-healing capability of concrete but it reduces concrete alkalinity because the pozzolanic reaction consumes calcium hydrate in the concrete. This study investigates the risk of carbonation of self-healed concrete mixed with fly ash and SAP. Experimental tests were conducted in which cement mortar was cast with varying fly ash and SAP contents. A crack was induced by a mechanical load. The cracked specimens were cured in water and stored in air for 2 years. Carbonation resistance was evaluated by carbonation depth measurement and thermogravimetric/differential thermal analysis. It was found that carbonation resistivity is decreased in self-healed con- crete mixed with fly ash and SAP.

KW - Carbonation

KW - Durability

KW - Fly ash

KW - Superabsorbent polymer

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M3 - Conference contribution

AN - SCOPUS:85104120813

SN - 9789811580789

T3 - Lecture Notes in Civil Engineering

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BT - EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019

A2 - Wang, Chien Ming

A2 - Kitipornchai, Sritawat

A2 - Dao, Vinh

PB - Springer Science and Business Media Deutschland GmbH

T2 - 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019

Y2 - 3 December 2019 through 6 December 2019

ER -

Chindasiriphan P, Yokota H. Effect of fly ash and superabsorbent polymer on concrete carbonation. In Wang CM, Kitipornchai S, Dao V, editors, EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. Springer Science and Business Media Deutschland GmbH. 2021. p. 1863-1872. (Lecture Notes in Civil Engineering). doi: 10.1007/978-981-15-8079-6_171

Effect of fly ash and superabsorbent polymer on concrete carbonation

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Keywords

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