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Bulk Hydrophobic Civil Engineering Concrete For Nordic Conditions – Freeze Thaw Action
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures. RISE Research Institutes of Sweden AB.ORCID iD: 0000-0001-7820-4052
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.ORCID iD: 0000-0002-1526-9331
CEMENTA AB.
RISE Research Institutes of Sweden AB.
2019 (English)In: / [ed] Wit Derkowski et al., 2019Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Concrete is a compositebuilding material which long term function can be modified for example bychanging the water to cement ratio (w/c) or by adding in other chemicaladmixtures to change the fresh and hardened properties of the concrete. Theoverall goal of this study is to reduce the water absorption capacity of thecement paste/microstructure by at least 85 %. This is achieved by using bulkhydrophobic agents in the mixing phase rather than post hardened surfaceapplication. Numerous commercial agents and triglycerides (vegetable oils) weretested and showed promising results at a dosage equal to 3% of cement weight.This though affected compressive strengths negatively. As these concretes willbe exposed to Nordic winter conditions, the concrete should perform well underrepeated salt water freezing and thawing. This continued study will show how aselection of these bulk hydrophobic concretes performed during this part of thestudy. The concrete has a w/c = 0.4 with a cement content (CEM I) of 430 kg/m3

Place, publisher, year, edition, pages
2019.
National Category
Other Materials Engineering
Research subject
Civil and Architectural Engineering
Identifiers
URN: urn:nbn:se:kth:diva-255843OAI: oai:DiVA.org:kth-255843DiVA, id: diva2:1342514
Conference
fib Symposium 2019 - Concrete - Innovations in Materials, Design and Structures, Kraków, Poland May, 27-29 2019.
Funder
Swedish Transport Administration, 2017/57524Rock Engineering Research Foundation (BeFo), 383
Note

QC 20190821

Available from: 2019-08-13 Created: 2019-08-13 Last updated: 2019-08-21Bibliographically approved

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Rogers, PatrickSilfwerbrand, Johan

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CiteExportLink to record
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