The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions

Karol Slawomir Sikora; Agnieszka Klemm

The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions

Karol Slawomir Sikora, Agnieszka Klemm

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

Abstract

The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.

Original language	English
Pages (from-to)	255-268
Number of pages	14
Journal	International Journal of Computational Methods and Experimental Measurements
Volume	2
Issue number	3
Publication status	Published - 2013

Keywords

freezing/thawing cycles
microstructural characterisation
Portland fly ash cement
salt crystallisation
superabsorbent polymers

Documents and Links

http://www.witpress.com/elibrary/cmem-volumes/2/3/860

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title = "The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions",

abstract = "The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) {\textquoteleft}protection{\textquoteright} based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.",

keywords = "freezing/thawing cycles, microstructural characterisation, Portland fly ash cement, salt crystallisation, superabsorbent polymers",

author = "Sikora, {Karol Slawomir} and Agnieszka Klemm",

note = "No DOI available? ET 17-11-14",

year = "2013",

language = "English",

volume = "2",

pages = "255--268",

journal = "International Journal of Computational Methods and Experimental Measurements",

issn = "0219-8762",

publisher = "World Scientific Publishing",

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TY - JOUR

T1 - The effect of Superabsorbent Polymers (SAP) on perormance of fly ash cementitious mortars exposed to accelerated freezing/thawing conditions

AU - Sikora, Karol Slawomir

AU - Klemm, Agnieszka

N1 - No DOI available? ET 17-11-14

PY - 2013

Y1 - 2013

N2 - The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.

AB - The paper is focused on identification of micro-structural and mechanical alterations in porous matrices of Portland fly ash cement mortar, during frost deterioration. An attempt is made to assess the efficiency of superabsorbent polymer (SAP) ‘protection’ based on analysis of three SAP types with different water absorption/desorption capacities. Two different exposure regimes have been adopted in the study; the exposure to freeze/thaw cycles and the exposure to freeze/thaw with de-icing solution. In order to eval- uate the effect of SAPs on the micro-structural features of deteriorating mortars comprehensive MIP and SEM analyses were performed. It has been found that SAPs with high water absorption capacities may prevent flexural strength reduction caused by frost action.

KW - freezing/thawing cycles

KW - microstructural characterisation

KW - Portland fly ash cement

KW - salt crystallisation

KW - superabsorbent polymers

M3 - Article

VL - 2

SP - 255

EP - 268

JO - International Journal of Computational Methods and Experimental Measurements

JF - International Journal of Computational Methods and Experimental Measurements

SN - 0219-8762

IS - 3

ER -