Experimental study of hemp concrete properties incorporating a viscosity modifying admixture

Experimental study of hemp concrete properties incorporating a viscosity modifying admixture

Page, J. Sonebi, M. Amziane, S. 

ESITC Caen, Université de Caen Normandie, 1 rue Pierre et Marie Curie, Epron, 14610, France

School of Natural and Built Environment, Queen's University Belfast, University Road, Belfast, Northern Ireland, BT7 1NN, United Kingdom

Institut Pascal, Clermont Université UMR 6602, 2 avenue Blaise Pascal, Aubière, 63178, France

Corresponding Author Email: 
jonathan.page@esitc-caen.fr
Page: 
349-366
|
DOI: 
https://doi.org/10.3166/RCMA.26.349-366
Received: 
N/A
|
Accepted: 
N/A
|
Published: 
31 December 2016
| Citation
Abstract: 

The low mechanical strength of bio-aggregate-based concretes is mainly due to the high water absorption of hemp shives and the poor aggregate - mineral binder adhesion. A new way of approach to improve this interface is the use of a viscosity-modifying admixture (VMA). Four different mixes were made for: shuttered wall, external rendering, floor insulation and roof insulation. The setting up strategy enabled the elaboration of hemp concrete with improved mechanical properties due to an addition of 1% VMA in the binder. This VMA did not increase the thermal conductivity of the composite. The results also highlighted an increased efficiency of the viscosity with mixes containing a high hemp shiv / binder ratio.

Keywords: 

Hemp concrete, Mechanical properties, Thermal conductivity, Vicosity-modifying admixture, Water absortion

Extended abstract
1. Introduction
2. Matériaux et formulations
3. Résultats et discussion
4. Conclusion
  References

[1] Amziane, S., Arnaud, L., Challamel, N. (2013). Bio-aggregate-based Building Materials: Applications to Hemp Concretes. http://onlinelibrary.wiley.com/book/10.1002/9781118576809. ISBN: 978-184821404-0. https://doi.org/10.1002/9781118576809

[2] Amziane, S., Nozahic, V., Sonebi, M. (2015). Design of mechanically enhanced concrete using hemp shiv. Proceedings of the 1st International Conference on Bio-Based Building Materials ICBBM 2015: 422-426. Clermont-Ferrand, France

[3] Amziane, S., Sonebi, M. (2015). Proceedings of the first international conference on "bio-based building materials. ICBBM 2015, Proceedings PRO 99. Ed. Amziane S., Sonebi M., Clermont-Ferrand (France), 21-24 Juin 2015, Publications RILEM.

[4] Amziane, S., Sonebi, M. (2016). Overview on biobased building material made with plant aggregate. RILEM Technical Letters, 1: 31-38.

[5] Amziane, S., Collet, F. (2016). Round Robin Test for hemp shiv characterisation: Part 1, evaluation of initial water content and water absorption. State of the Art Report of 236 TC Bio Based Building Materials. Springer Edition.

[6] Amziane, S., Collet, F. (2016). Round Robin Test for hemp shiv characterisation: Part 1, evaluation of initial water content and water absorption. State of the Art Report of 236 TC Bio Based Building Materials. Springer Edition.

[7] Amziane, S., Collet, F. (2016). Round Robin Test for hemp shiv characterisation: Part 1, evaluation of initial water content and water absorption. State of the Art Report of 236 TC Bio Based Building Materials. Springer Edition.

[8] Bewa, H. (2007). Marché Actuel des Bioproduits Industriels et des Biocarburants & Évolutions Prévisibles À Échéance 2015/2030. Rapport d'étude ADEME, avril 2007.

[9] Bouloc, P. (2006). Le Chanvre Industriel - Production et Utilisations. France agricole, Paris.

[10] Boutin, M.-P., Flamin, C., Quinton, S., Gosse, G. (2006). Etude des Caractéristiques Environnementales du Chanvre Par l'Analyse de Son Cycle de Vie. Rapport d'étude INRA-ADEME, septembre 2006.

[11] Cérézo, V. (2005). Propriétés Mécaniques, Thermiques et Acoustiques d'Un Matériau À Base de Particules Végétales: Approche Expérimentale et Modélisation Théorique. Thèse en Génie Civil, Institut National des Sciences Appliquées de Lyon.

[12] Chabannes, M., Nozahic, V., Amziane, S. (2015). Design and multi-physical properties of a new insulating concrete using sunflower stem aggregates and eco-friendly binders. Materials and Structures/Materiaux et Constructions, 48 (6): 1815-1829. https://doi.org/10.1617/s11527-014-0276-9.

[13] Chamoin, J. (2013). Optimisation des Propriétés (Physiques, Mécaniques et Hydriques) de Bétons de Chanvre Par la Maîtrise de la Formulation. Thèse en Génie Civil, Institut National des Sciences Appliquées de Rennes.

[14] (2012) Règles Professionnelles d'Exécution d'Ouvrages en Bétons et Mortiers de Chanvre. Construire en Chanvre, SEBTP, Paris.

[15] Evrard, A., De Herde, A. (2010). Hygrothermal performance of lime-hemp wall aassemblies. Journal of Building Physics, 48 (6): 1815-1829.

[16] Igathinathane, C., Pordesimo, L.O., Columbus, E.P., Batchelor, W.D., Sokhansanj, S. (2009). Sieveless particle size distribution analysis of particulate materials through computer vision. Computers and Electronics in Agriculture, 66 (2): 147-158. https://doi.org/10.1016/j.compag.2009.01.005

[17] Le Troedec, M., Sedan, D., Peyratout, C., Bonnet, J.P., Smith, A., Guinebretiere, R., Gloaguen, V., (...), Krausz, P. (2018). Influence of various chemical treatments on the composition and structure of hemp fibres. Composites Part A: Applied Science and Manufacturing, 39 (3): 514-522.  https://doi.org/10.1016/j.compositesa.2007.12.001

[18] Nguyen, T.T. (2010). Contribution À l'Étude de la Formulation et du Prodédé de Fabrication d'Éléments de Construction en Béton de Chanvre. Thèse en Génie Civil, Université de Bretagne-sud.

[19] Nguyen, T.-T., Picandet, V., Amziane, S., Baley, C. (2009). Influence of compactness and hemp hurd characteristics on the mechanical properties of lime and hemp concrete. European Journal of Environmental and Civil Engineering, 13 (9): 1039-1050. https://doi.org/10.1080/19648189.2009.9693171.

[20] Nozahic, V., Amziane, S. (2012). Influence of sunflower aggregates surface treatments on physical properties and adhesion with a mineral binder. Composites Part A: Applied Science and Manufacturing, 43 (11): 1837-1849. https://doi.org/10.1016/j.compositesa.2012.07.011.

[21] Nozahic, V., Amziane, S., Torrent, G., Saïdi, K., De Baynast, H. (2012). Design of green concrete made of plant-derived aggregates and a pumice-lime binder. Cement and Concrete Composites, 34 (2): 231-241.  https://doi.org/10.1016/j.cemconcomp.2011.09.002.

[22] Patural, L., Marchal, P., Govin, A., Grosseau, P., Ruot, B., Devès, O. (2011). Cellulose ethers influence on water retention and consistency in cement-based mortars. Cement and Concrete Research, 41 (1): 46-55. https://doi.org/10.1016/j.cemconres.2010.09.004.

[23] Sedan, D., Pagnoux, C., Chotard, T., Smith, A., Lejolly, D., Gloaguen, V., Krausz, P. (2007). Effect of calcium rich and alkaline solutions on the chemical behaviour of hemp fibres. Journal of Materials Science, 42 (22): 9336-9342. https://doi.org/10.1007/s10853-007-1903-4.

[24] Sedan, D., Pagnoux, C., Smith, A., Chotard, T. (2008). Mechanical properties of hemp fibre reinforced cement: Influence of the fibre/matrix interaction. Journal of the European Ceramic Society, 28 (1): 183-192. https://doi.org/10.1016/j.jeurceramsoc.2007.05.019.

[25] onebi, M., Wana, S., Amziane, S., Khatib, J. (2015). Investigation of the mechanical performance and weathering of hemp concrete. Proceedings of the 1st International Conference on Bio-Based Building Materials ICBBM 2015: 416-421. Clermont-Ferrand, France.

[26] Tran Le, A.D., Maalouf, C., Mai, T.H., Wurtz, E., Collet, F. (2010). Transient hygrothermal behaviour of a hemp concrete building envelope. Energy and Buildings, 42 (10): 1797-1806. https://doi.org/10.1016/j.enbuild.2010.05.016.