Hygrothermal Performance of an Experimental Hemp-Lime Building

Mike Lawrence; Enrico Fodde; Kevin Paine; Pete Walker

doi:10.4028/www.scientific.net/KEM.517.413

Paper Titles

Potential Use of Colloidal Silica in Cement Based Composites: Evaluation of the Mechanical Properties
p.382

Experimental Study on All-Lightweight Aggregate Concrete Columns under Eccentric Loading
p.392

Experimental Study on Flexural Behaviors of All-Lightweight Aggregate Concrete Beams and Slabs
p.398

Influences of Ground Limestone Fineness on the Properties of Cement-Based Materials
p.403

Hygrothermal Performance of an Experimental Hemp-Lime Building
p.413

Determination of Mechanical Properties of Biodegradable Composites Made by Pine Resin Corn Fibers and Henequen Fibers
p.422

Variables Involved in the Planting of Rice in the Rice Husk
p.430

Processing Changes of Cement Based Composites Reinforced with Silane and Isocyanate Eucalyptus Modified Fibres
p.437

Extruded Cement Based Composites Reinforced with Sugar Cane Bagasse Fibres
p.450

HomeKey Engineering MaterialsKey Engineering Materials Vol. 517Hygrothermal Performance of an Experimental...

Hygrothermal Performance of an Experimental Hemp-Lime Building

Abstract:

The use of hemp-lime as a construction technique is a novel approach which combines renewable low carbon materials with exceptional hygrothermal performance. The hemp plant can grow up to 4m over a four month period, with a low fertilizer and irrigation demand, making it very efficient in the use of time and material resources. All parts of the plant can be used the seed for food stuffs, the fibre surrounding the stem for paper, clothing and resin reinforcement, and the woody core of the stem as animal bedding and aggregate in hemp-lime construction. The unique pore structure of the woody core (shiv) confers low thermal conductivity and thermal and hygric buffering to hemp-lime. The construction technique promotes good air tightness and minimal thermal bridging within the building envelope. All these factors combine to produce low carbon, hygrothermally efficient buildings which are low energy both in construction and in use, and offer opportunities for recycling at end of life. This paper reports on the hygrothermal performance of an experimental hemp-lime building, and on the development of a computerized environmental model which takes account of the phase change effects seen in hemp-lime.

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Periodical:

Key Engineering Materials (Volume 517)

Pages:

413-421

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.517.413

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Online since:

June 2012

Authors:

Mike Lawrence, Enrico Fodde, Kevin Paine, Pete Walker

Keywords:

Hemp-Lime, Hygrothermal Damping, Hygrothermal Performance, Phase Change, Phase Shift

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References

[1] Department of Energy and Climate Change (DECC) Statistical release, UK climate change sustainable development indicator: 2010 greenhouse gas emissions, provisional figures and 2009 greenhouse gas emissions, final figures by fuel type and end-user, 31st March (2011).

DOI: 10.1017/cbo9780511804427.003

Google Scholar

[2] Innovation and Growth Team, Low Carbon Construction – Final Report, Department for Business Innovation and Skills, London (2010).

Google Scholar

[3] Boutin, M-P. Flamin, C. Quinton, S. and Gosse, G. Analyse du cycle de vie de mur en béton chanvre banché sur ossature en bois (Life cycle analysis of a cast hemp-lime timber framed wall), INRA, Lille. (2005).

Google Scholar

[4] Cérézo, V. Propriétés mécaniques, thermiques et acoustiques d'un matériau à base de particules végétales: approche expérimentale et modélisation théorique. PhD Thesis, ENTPE, Lyon, (2005).

Google Scholar

[5] Yates, T. Final Report on the construction of the hemp houses at Haverhill, Suffolk, Client report 209-717 Rev2, BRE, Watford (2002).

Google Scholar

[6] Evrard, A. and De Herde, A. Hygrothermal performance of lime-hemp wall assemblies, Journal of Building Physics 34 (1) (2010) 5-24.

DOI: 10.1177/1744259109355730

Google Scholar

[7] Hens, H. Building Physics - Heat, Air and Moisture Ernst & Sohn, Berlin, (2007).

Google Scholar

[8] Rogers, R.R. and Yau, M.K. A short course in cloud physics, Pergamon Press, London, (1989).

Google Scholar

[9] Le Tran, A.D. Maalouf, C. Mai, T.H. Wurtz, E. and Collet, F. Transient hygrothermal behaviour of a hemp concrete building envelope, Energy and Buildings 42 (2010) 1797-1806.

DOI: 10.1016/j.enbuild.2010.05.016

Google Scholar