By Sofiane Amziane, Laurent Arnaud
Using plant fabric as uncooked fabrics for building is a comparatively fresh and unique subject of study. This e-book offers an summary of the present wisdom at the fabric homes and environmental impression of development fabrics made up of plant debris, that are renewable, recyclable and simply on hand. It specializes in debris and to boot on fibers issued from hemp plant, in addition to discussing hemp concretes.
The ebook starts off via surroundings the environmental, financial and social context of agro-concretes, ahead of discussing the character of plant-based aggregates and binders. The formula, implementation and mechanical habit of such development fabrics are the topic of the subsequent chapters. the point of interest is then placed upon the hygrothermal habit and acoustical homes of hempcrete, by way of plant-based concretes in constructions. The e-book concludes with the research of life-cycle research (LCA) of the environmental features of a banked hempcrete wall on a wood skeleton.
1. Environmental, financial and Social Context of Agro-Concretes, Vincent Nozahic and Sofiane Amziane.
2. Characterization of Plant-Based Aggregates. Vincent Picandet.
3. Binders, Gilles Escadeillas, Camille Magniont, Sofiane Amziane and Vincent Nozahic.
4. formula and Implementation, Christophe Lanos, Florence Collet, Gerard Lenain and Yves Hustache.
5. Mechanical habit, Laurent Arnaud, Sofiane Amziane, Vincent Nozahic and Etienne Gourlay.
6. Hygrothermal habit of Hempcrete, Laurent Arnaud, Driss Samri and Etienne Gourlay.
7. Acoustical houses of Hemp Concretes, Philippe Gle, Emmanuel Gourdon and Laurent Arnaud.
8. Plant-Based Concretes in constructions: Structural point – Addition of a wood aid to soak up the tension, Philippe Munoz and Didier Pipet.
9. exam of the Environmental features of a Banked Hempcrete Wall on a wood Skeleton, by means of Lifecycle research: suggestions at the LCA scan from 2005, Marie-Pierre Boutin and Cyril Flamin.
Chapter 1 Environmental, fiscal and Social Context of Agro?Concretes (pages 1–26): Vincent Nozahic and Sofiane Amziane
Chapter 2 Characterization of Plant?Based Aggregates (pages 27–74): Vincent Picandet
Chapter three Binders (pages 75–116): Gilles Escadeillas, Camille Magniont, Sofiane Amziane and Vincent Nozahic
Chapter four formula and Implementation (pages 117–152): Christophe Lanos, Florence Collet, Gerard Lenain and Yves Hustache
Chapter five Mechanical habit (pages 153–178): Laurent Arnaud, Sofiane Amziane, Vincent Nozahic and Etiennec Gourlay
Chapter 6 Hygrothermal habit of Hempcrete (pages 179–242): Laurent Arnaud, Driss Samri and Etienne Gourlay
Chapter 7 Acoustical homes of Hemp Concretes (pages 243–266): Philippe Gle, Emmanuel Gourdon and Laurent Arnaud
Chapter eight Plant?Based Concretes in constructions: Structural element – Addition of a wood aid to take in the stress (pages 267–288): Philippe Munoz and Didier Pipet
Chapter nine exam of the Environmental features of a Banked Hempcrete Wall on a wood Skeleton, via Lifecycle research: suggestions at the LCA test from 2005 (pages 289–312): Marie?Pierre Boutin and Cyril Flamin
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Extra resources for Bio-aggregate-based Building Materials
Hemp shiv under investigation, laid out in a spread 7 cm in diameter The study presented below is based on the example of two types of hemp shiv: a hemp shiv gained from an advanced process of defibration with very few residual fibers, denoted HS, and another gained from a partial process of defibration, containing a significant amount of short cortical fibers (shorter than 4 cm), denoted FHS. 4. 3. Methods for characterizing the PSD Two methods can be easily employed to study the PSD of the hemp shiv, each with advantages and drawbacks: The conventional method of sieving with dry particles enables us to take measurements directly on a sample of a few hundred grams.
Characterization of Plant-Based Aggregates 37 The term “hemp shiv” is currently used to denote aggregates from the stem of the hemp plant which may be very varied, as they come from agricultural products that are subject to weather hazards and obtained using various post-harvest processes. Flax shiv, for its part, present still more disparate characteristics, particularly due to the larger variety of species that can be grown. In addition, the implementation processes employed generally tend to give preference to these particles, and therefore – depending on the overall shape of the particles – give rise to a tangible anisotropy of the material, particularly in terms of its thermal characteristics [ELF 08; NGU 10b].
SAVASTANO JR. , BLANCO A. , “Eucalyptus pulp fibres as alternative reinforcement to engineered cement-based composites”, Industrial Crops and Products, vol. 31, March 2010, p. 225–232. , “Cement composites with limestone dust and different grades of wood sawdust,” Building and Environment, vol. 42, November 2007, p. 3801–3807. [UNE 07] UNITED NATIONS ENVIRONMENTAL PROGRAM (UNEP), New science and developments in our changing environment, 2009. Environmental, Economic and Social Context of Agro-Concretes 25 [UNI 87] UNITED NATIONS, Bruntland Report – Our common future, World Commission on Environment and Development, 1987.