Characterization of the interface between fresh concrete and formwork
Concrete surface quality is generally linked to the development conditions of concrete close to the formwork. This work aims to study the influence of the nature of release agent and the quantity of fine elements on the chemical interactions at the concrete/oil/formwork interface. Five concretes we...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Vilnius Gediminas Technical University
2015-12-01
|
Series: | Journal of Civil Engineering and Management |
Subjects: | |
Online Access: | http://journals.vgtu.lt/index.php/JCEM/article/view/2315 |
id |
doaj-43c35650a0784213a2f981d627d9d26a |
---|---|
record_format |
Article |
spelling |
doaj-43c35650a0784213a2f981d627d9d26a2021-07-02T17:12:30ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052015-12-0122110.3846/13923730.2014.893912Characterization of the interface between fresh concrete and formworkSamir Bouharoun0Laboratoire Génie Civil et géo-Environnement (LGCgE) – Lille Nord de France (EA 4515), IUT de Béthune, 1230 Rue de l’Université, F-62400 Béthune, France Concrete surface quality is generally linked to the development conditions of concrete close to the formwork. This work aims to study the influence of the nature of release agent and the quantity of fine elements on the chemical interactions at the concrete/oil/formwork interface. Five concretes were prepared at 28, 30, 32, 34, and 36% of paste to study the influence of paste volume on the friction between formwork and fresh concrete. The friction tests were performed using an apparatus which can reproduce the same conditions of construction sites. In addition, a physicochemical investigation was achieved to identify the effect of fine elements on the ability to form the interstitial mediums at the interface. The formation of soap in the vicinity of the formwork surfaces was also studied as a function of the content and the nature of oils. The results showed that the friction between fresh concrete and formwork depends on the pore solution content present at the interface. http://journals.vgtu.lt/index.php/JCEM/article/view/2315release agentpaste volumefrictionformation of soapchemical interaction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Samir Bouharoun |
spellingShingle |
Samir Bouharoun Characterization of the interface between fresh concrete and formwork Journal of Civil Engineering and Management release agent paste volume friction formation of soap chemical interaction |
author_facet |
Samir Bouharoun |
author_sort |
Samir Bouharoun |
title |
Characterization of the interface between fresh concrete and formwork |
title_short |
Characterization of the interface between fresh concrete and formwork |
title_full |
Characterization of the interface between fresh concrete and formwork |
title_fullStr |
Characterization of the interface between fresh concrete and formwork |
title_full_unstemmed |
Characterization of the interface between fresh concrete and formwork |
title_sort |
characterization of the interface between fresh concrete and formwork |
publisher |
Vilnius Gediminas Technical University |
series |
Journal of Civil Engineering and Management |
issn |
1392-3730 1822-3605 |
publishDate |
2015-12-01 |
description |
Concrete surface quality is generally linked to the development conditions of concrete close to the formwork. This work aims to study the influence of the nature of release agent and the quantity of fine elements on the chemical interactions at the concrete/oil/formwork interface. Five concretes were prepared at 28, 30, 32, 34, and 36% of paste to study the influence of paste volume on the friction between formwork and fresh concrete. The friction tests were performed using an apparatus which can reproduce the same conditions of construction sites. In addition, a physicochemical investigation was achieved to identify the effect of fine elements on the ability to form the interstitial mediums at the interface. The formation of soap in the vicinity of the formwork surfaces was also studied as a function of the content and the nature of oils. The results showed that the friction between fresh concrete and formwork depends on the pore solution content present at the interface.
|
topic |
release agent paste volume friction formation of soap chemical interaction |
url |
http://journals.vgtu.lt/index.php/JCEM/article/view/2315 |
work_keys_str_mv |
AT samirbouharoun characterizationoftheinterfacebetweenfreshconcreteandformwork |
_version_ |
1721325730593243136 |