Assessment of Rational Design of Self-Compacting Concrete Incorporating Fly Ash and Limestone Powder in Terms of Long-Term Durability

Pavel Reiterman , Roman Jaskulski , Wojciech Kubissa , Holčapek Ondřej , Martin Keppert

Abstract

Self-compaction concrete (SCC) is ranked among the main technological innovations of the last decades. Hence, it introduces a suitable possibility for further utilization of supplementary cementitious materials (SCM) in terms of sustainable development. The aim of the work is the assessment of a new approach to binder design, which takes into consideration the activity of the used mineral additive. The proposed approach, which allows a systematic design of a binding system with varied properties of the used mineral additive, was studied on ternary blends consisting of Portland cement (PC), limestone powder and fly ash (FA). The verification was conducted on SCC mixtures in terms of their workability, mechanical properties and the most attention was paid to long-term durability. The long-term durability was assessed on the basis of shrinkage measurement, freeze-thaw resistance and permeability tests including initial surface absorption, chloride migration, water penetration and an accelerated carbonation test, which was compared with the evolution of carbonation front in normal conditions. The durability of studied mixtures was evaluated by using durability loss index, which allow general assessment on the basis of multiple parameters. The carbonation resistance had a dominant importance on the final durability performance of studied mixtures. The experimental program revealed that the proposed design method is reliable only in terms of properties in fresh state and mechanical performance, which were similar with control mixture. Despite suitable results of freeze-thaw resistance and shrinkage, an increasing amount of fly ash in terms of the new design concept led to a fundamental increase of permeability and thus to decay of long-term durability. Acceptable properties were achieved for the lowest dosage of fly ash.
Author Pavel Reiterman
Pavel Reiterman,,
-
, Roman Jaskulski (FCEMP / ICEn)
Roman Jaskulski,,
- Insitute of Civil Engineering
, Wojciech Kubissa (FCEMP / ICEn)
Wojciech Kubissa,,
- Insitute of Civil Engineering
, Holčapek Ondřej
Holčapek Ondřej,,
-
, Martin Keppert
Martin Keppert,,
-
Journal seriesMaterials, ISSN 1996-1944
Issue year2020
Vol13
No2863
Pages1-26
Publication size in sheets1.25
Article number2863
Keywords in Englishself-compacting concrete; fly ash addition; limestone powder; durability; carbonation
ASJC Classification2500 General Materials Science
DOIDOI:10.3390/ma13122863
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); after publication
File
WUT6e9e9ae076fa4e288fae6c57db5789ba.pdf 3.33 MB
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 20-07-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.285; WoS Impact Factor: 2018 = 2.972 (2) - 2018=3.532 (5)
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