cobbauge kick-off event€¦ · clay activity (shrinkage/swelling) « nf p94-068 & nf p94-051...
TRANSCRIPT
COBBAUGE KICK-OFF EVENT
28th November 2017
Plymouth University
RÉUNION DE LANCEMENT COBBAUGE
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Introduction of CobBauge project
Présentation du projet CobBauge
28/11/2017 2 Kick-off event
Malo Le Guern
Ecole Supérieure
d’Ingénieurs des Travaux
de la Construction de Caen
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Cob components
Kick-off event 28/11/2017 3
Aspects techniques de la Bauge
Soil Straw Water
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Soil characterisation :
Particle Size Distribution « ISO 13320 »
Kick-off event 28/11/2017 4
Aspects techniques de la Bauge
3 % 18 %
d > 80 µm d < 80 µm
Mechanical sieving Laser diffraction Particle size distribution of several soils
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Soil characterisation :
Clay activity (shrinkage/swelling) « NF P94-068 & NF P94-051 »
Kick-off event 28/11/2017 5
Aspects techniques de la Bauge
3 % 18 % Filter paper
Methylene blue value Atterberg’s limits
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Soil characterisation :
Proctor test « NF P94-078 »
Kick-off event 28/11/2017 6
Aspects techniques de la Bauge
18 %
Automatic compactor Atterberg’s limits
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Fibre characterisation :
Tensile strength
Kick-off event 28/11/2017 7
Aspects techniques de la Bauge
3 % 18 %
Tensile strength test Fibres’ tensile strength test
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Fibre characterisation :
Water absorption
Kick-off event 28/11/2017 8
Aspects techniques de la Bauge
3 % 18 %
Immersed fibres
Water absorption of flax and straw
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Samples:
Kick-off event 28/11/2017 9
Aspects techniques de la Bauge
3 % 18 %
Cylindric Prismatic Cubic
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Cob characterisation :
Compressive strength
Kick-off event 28/11/2017 10
Aspects techniques de la Bauge
3 % 18 %
Compressive strength test Cob’s compressive strength test
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
• Cob characterisation :
Bending strength
Kick-off event 28/11/2017 11
Aspects techniques de la Bauge
3 % 18 %
Four point bending strength test Cob’s compressive strength test
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
Kick-off event 28/11/2017 12
Aspects techniques de la Bauge
3 % 18 %
• Cob characterisation :
Thermal conductivity
18 %
Hot wire conductivity meter
« NF B40-316 » Heat flux transducer
« NF EN 12667 »
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
Kick-off event 28/11/2017 13
Aspects techniques de la Bauge
3 % 18 %
• Cob characterisation :
Hygrometric properties « NF EN ISO 12571 »
18 %
Dynamic Vapour Sorption analyser Example of cob’s hygrometric hysteresis
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Technical aspects of cob
Kick-off event 28/11/2017 14
Aspects techniques de la Bauge
3 % 18 % 18 %
Knowledge of
fibres’ influence
Manufacturing
process
optimisation
Determine the
ideal type of soil
Determine 4
optimal Cob
mixes
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Follow the project
CobBauge Project
http://www.cobbauge.eu/
News
Events
Documentation
Trainings
And more !
Kick-off event 28/11/2017 15
Suivez nos travaux
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited
Thank you for your attention Merci de votre attention
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited