Bio-aggregate-based Building Materials - Applications to Hemp Concretes

Using plant material as raw materials for construction is a relatively recent and original topic of research. This book presents an overview of the current knowledge on the material properties and environmental impact of construction materials made from plant particles, which are renewable, recyclable and easily available. It focuses on particles and as well on fibers issued from hemp plant, as well as discussing hemp concretes. The book begins by setting the environmental, economic and social context of agro-concretes, before discussing the nature of plant-based aggregates and binders. The formulation, implementation and mechanical behavior of such building materials are the subject of the following chapters. The focus is then put upon the hygrothermal behavior and acoustical properties of hempcrete, followed by the use of plant-based concretes in structures. The book concludes with the study of life-cycle analysis (LCA) of the environmental characteristics of a banked hempcrete wall on a wooden skeleton.
 
Contents
 
1. Environmental, Economic 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. Formulation and Implementation, Christophe Lanos, Florence Collet, Gérard Lenain and Yves Hustache.
5. Mechanical Behavior, Laurent Arnaud, Sofiane Amziane, Vincent Nozahic and Etienne Gourlay.
6. Hygrothermal Behavior of Hempcrete, Laurent Arnaud, Driss Samri and Étienne Gourlay.
7. Acoustical Properties of Hemp Concretes, Philippe Glé, Emmanuel Gourdon and Laurent Arnaud.
8. Plant-Based Concretes in Structures: Structural Aspect - Addition of a Wooden Support to Absorb the Strain, Philippe Munoz and Didier Pipet.
9. Examination of the Environmental Characteristics of a Banked Hempcrete Wall on a Wooden Skeleton, by Lifecycle Analysis: Feedback on the LCA Experiment from 2005, Marie-Pierre Boutin and Cyril Flamin.
 
About the Authors
 
Sofiane Amziane is Professor and head of the Civil Engineering department at POLYTECH Clermont-Ferrand in France. He is also in charge of the research program dealing with bio-based building materials at Blaise Pascal University (Institut Pascal, Clermont Ferrand, France). He is the secretary of the RILEM Technical Committee 236-BBM dealing with bio-based building materials and the author or co-author of over one hundred papers in scientific journals such as Cement and Concrete Research, Composite Structures or Construction Building Materials as well as international conferences.
Laurent Arnaud is a Bridges, Waters and Forestry Engineer (Ingénieur des Ponts, Eaux et Forêts) and researcher at Joseph Fourier University in Grenoble, France. He is also Professor at ENTPE (Ecole Nationale des Travaux Publics de l'Etat). Trained in the field of mechanical engineering, his research has been directed toward the characterization and development of new materials for civil engineering and construction. He is head of the international committee at RILEM - BBM, as well as the author of more than one hundred publications, and holder of an international invention patent.

List of contents

Foreword
 
Chapter 1 Environmental, Economic and Social Context of Agro-Concretes
 
Vincent NOZAHIC and Sofiane AMZIANE
 
Sustainable development, construction and materials
 
Environmental impacts of the construction sector
 
Standardization and regulation: toward a global approach
 
Standardization and regulation in force
 
Limitations of the normative and regulatory framework
 
The materials: an increasingly crucial element
 
Role of the materials in energy consumption
 
What is a low-environmental-impact material?
 
Constantly-changing regulations
 
The specific case of concretes made from lignocellular particles
 
Development of agro-concretes in the context of France
 
What does the term "Agro-concrete" mean?
 
General definition
 
Lignocellular resources
 
General characteristics of lignocellular agro-resources
 
Conclusions
 
Bibliography
 
Chapter 2 Characterization of Plant-Based Aggregates
 
Vincent PICANDET
 
Microstructure of the shiv particles
 
Structure of the stem of fibrous plants
 
SEM observation of hemp shiv particles
 
Chemistry of the cell walls
 
Density and porosity, in the case of hemp shiv
 

Particle Size Distribution (PSD)
 
General characteristics of aggregates made from fibrous plants
 
Fiber content
 
Methods for characterizing the PSD
 
PSD analyses
 
Comparison of the results obtained by image analysis
 
Characterization of the geometry of the particles
 
Characterization of the PSD
 
Conclusions
 
Compactness and compressibility
 
Water absorption capacity
 
Bibliography
 
Chapter 3 Binders
 
Gilles ESCADEILLAS, Camille MAGNIONT, Sofiane AMZIANE and Vincent NOZAHIC
 
Portland cements
 
Chemical and mineral composition
 
Environmental impacts
 
Lime
 
Aerial lime
 
Natural hydraulic limes
 
Lime-pozzolan mixtures
 
Natural pozzolans
 
Calcined natural pozzolans: metakaolin
 
Fly ash
 
Blast furnace slag
 
Plaster
 

Chemical and mineralogical composition
 
Environmental impacts
 
Summary
 
Bibliography
 
Chapter 4 Formulation and Implementation
 
Christophe LANOS, Florence COLLET, Gérard LENAIN and Yves HUSTACHE
 
Objectives
 
Preamble
 
Traditional applications
 
Constituents and mixture
 
Methods of implementation
 
Rules of formulation
 
Basis of usual formulations
 
Influence of the proportion of paste in the mixture
 
Quality of the paste and water content
 
Homogeneity of the paste
 
The relationship between formulation and strength
 
The relationship between formulation and thermo-hydric properties
 
Examples of formulations
 
Origin of the data
 
Walling application
 
Flooring application
 
Roofing application
 
Other applications
 
Installation techniques
 
Building a wall using formwork
 
Application by spraying
 
Laying of a floor
 
Creating a roof
 
Other uses
 
Professional rules for buildings using hempcrete and hemp mortars
 
History
 
Principles and content of the professional regulations
 
Bibliography
 
Chapter 5 Mechanical Behavior
 
Laurent ARNAUD, Sofiane AMZIANE, Vincent NOZAHIC and Etienne GOURLAY
 
Compo

About the author

Sofiane Amziane is Professor and head of the Civil Engineering department at POLYTECH Clermont-Ferrand in France. He is also in charge of the research program dealing with bio-based building materials at Blaise Pascal University (Institut Pascal, Clermont Ferrand, France). He is the secretary of the RILEM Technical Committee 236-BBM dealing with bio-based building materials and the author or co-author of over one hundred papers in scientific journals such as Cement and Concrete Research, Composite Structures or Construction Building Materials as well as international conferences. Laurent Arnaud is a Bridges, Waters and Forestry Engineer (Ingénieur des Ponts, Eaux et Forêts) and researcher at Joseph Fourier University in Grenoble, France. He is also Professor at ENTPE (Ecole Nationale des Travaux Publics de l'Etat). Trained in the field of mechanical engineering, his research has been directed toward the characterization and development of new materials for civil engineering and construction. He is head of the international committee at RILEM - BBM, as well as the author of more than one hundred publications, and holder of an international invention patent.

Summary

Using plant material as raw materials for construction is a relatively recent and original topic of research. This book presents an overview of the current knowledge on the material properties and environmental impact of construction materials made from plant particles, which are renewable, recyclable and easily available.

Product details

• Authors: S Amziane, S. Amziane, Sofiane Amziane, Laurent Arnaud
• Assisted by: Amziane (Editor), S Amziane (Editor), S. Amziane (Editor), Sofiane Amziane (Editor), Laurent Arnaud (Editor)
• Publisher: Wiley & Sons
• Languages: English
• Product format: Hardback
• Released: 11.06.2013
• EAN: 9781848214040
• ISBN: 978-1-84821-404-0
• No. of pages: 332
• Series: ISTE; ISTE
• Subjects: Natural sciences, medicine, IT, technology > Chemistry; Beton, Konstruktionswerkstoffe, Materialwissenschaften, Materials science, Construction Materials, Faserverstärkter Beton