Skip to Main content Skip to Navigation
Theses

Développement d'un procédé frugal de démoulage in situ des parois de coffrage – Etude des signatures fonctionnelles des parois de coffrage

Abstract : In the civil engineering industry, the formwork oil spraying has become essential to avoid the concrete friction and adhesion on the formwork skins. Their usage on site is limited because their application is time consuming and polluting. Nowadays, the challenges lie in the development of new alternatives to oils based on surface signatures of formwork skins. Even though a large amount of work investigates novel formulations for ecological oils, few studies investigate the effect of these signatures on interfacial phenomena acting between concrete and formwork. Thus, in the present thesis work, the concrete friction on formwork skins has been studied first using a plan/plan tribometer simulating the condition of concrete forming. After developing a small laboratory-scale instrumented test to reproduce the formwork removal process on site, concrete adhesion was secondly quantified. The analysis of experimental data and the multi-physics characterization of formwork surfaces make it possible to establish the functionality of the signatures of skins on the friction and the adhesion of concrete, respectively. These correlations are used to propose an ideal solution of formwork limiting these phenomena to the interface concrete-formwork.
Complete list of metadatas

Cited literature [298 references]  Display  Hide  Download

https://pastel.archives-ouvertes.fr/tel-02490399
Contributor : Abes Star :  Contact
Submitted on : Tuesday, February 25, 2020 - 10:53:42 AM
Last modification on : Monday, March 30, 2020 - 8:46:32 AM

File

fix_SU9bohnS.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02490399, version 1

Citation

Nicolas Spitz. Développement d'un procédé frugal de démoulage in situ des parois de coffrage – Etude des signatures fonctionnelles des parois de coffrage. Autre [cond-mat.other]. Ecole nationale supérieure d'arts et métiers - ENSAM, 2019. Français. ⟨NNT : 2019ENAM0001⟩. ⟨tel-02490399⟩

Share

Metrics

Record views

35

Files downloads

13