Stability of air-entrainment with PCE-superplasticizers

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Journal Title
Journal ISSN
Volume Title
Conference article in proceedings
Date
2017
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
149-152
Series
Proceedings of the XXIII Nordic Concrete Research Symposium, Nordic concrete research
Abstract
Air content is an extremely important aspect of today’s concrete performance and durability characteristics. Lately in Finland, elevated air contents (>15%) have been observed from the samples drilled from structures. The high air contents have caused deficiencies in the compressive strength of concrete structures. One of the main factors affecting the stability of air content in concrete is the use of combination of Air-Entraining Agent (AEA) and Polycarboxylate Ether (PCE)–superplasticizers admixtures. This study is a part of research project, which investigate the stability of air-entrainment in concrete using different types of PCE-SP, AEA and concrete mix designs. The aim of the project is to achieve a stabile protective pore system for concrete.
Description
Keywords
air content, superplasticizer, air-entraining, admixtures, cement, mix design
Other note
Citation
Al-Neshawy , F & Punkki , J 2017 , Stability of air-entrainment with PCE-superplasticizers . in M Tange Hasholt (ed.) , Proceedings of the XXIII Nordic Concrete Research Symposium . Nordic concrete research , Norsk Betongforening , pp. 149-152 , Symposium on Nordic Concrete Research & Developement , Aalborg , Denmark , 21/08/2017 .