COBBAUGE KICK-OFF EVENT€¦ · Clay activity (shrinkage/swelling) « NF P94-068 & NF P94-051 »...
Transcript of COBBAUGE KICK-OFF EVENT€¦ · Clay activity (shrinkage/swelling) « NF P94-068 & NF P94-051 »...
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COBBAUGE KICK-OFF EVENT
28th November 2017
Plymouth University
RÉUNION DE LANCEMENT COBBAUGE
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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
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Technical aspects of cob
• Cob components
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Aspects techniques de la Bauge
Soil Straw Water
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Technical aspects of cob
• Soil characterisation :
Particle Size Distribution « ISO 13320 »
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Aspects techniques de la Bauge
3 % 18 %
d > 80 µm d < 80 µm
Mechanical sieving Laser diffraction Particle size distribution of several soils
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Technical aspects of cob
• Soil characterisation :
Clay activity (shrinkage/swelling) « NF P94-068 & NF P94-051 »
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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
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Technical aspects of cob
• Soil characterisation :
Proctor test « NF P94-078 »
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Aspects techniques de la Bauge
18 %
Automatic compactor Atterberg’s limits
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Technical aspects of cob
• Fibre characterisation :
Tensile strength
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Aspects techniques de la Bauge
3 % 18 %
Tensile strength test Fibres’ tensile strength test
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Technical aspects of cob
• Fibre characterisation :
Water absorption
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Aspects techniques de la Bauge
3 % 18 %
Immersed fibres
Water absorption of flax and straw
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Technical aspects of cob
• Samples:
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Aspects techniques de la Bauge
3 % 18 %
Cylindric Prismatic Cubic
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Technical aspects of cob
• Cob characterisation :
Compressive strength
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Aspects techniques de la Bauge
3 % 18 %
Compressive strength test Cob’s compressive strength test
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Technical aspects of cob
• Cob characterisation :
Bending strength
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Aspects techniques de la Bauge
3 % 18 %
Four point bending strength test Cob’s compressive strength test
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Technical aspects of cob
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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 »
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Technical aspects of cob
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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
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Technical aspects of cob
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Aspects techniques de la Bauge
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Knowledge of
fibres’ influence
Manufacturing
process
optimisation
Determine the
ideal type of soil
Determine 4
optimal Cob
mixes
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Follow the project
CobBauge Project
http://www.cobbauge.eu/
News
Events
Documentation
Trainings
And more !
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Suivez nos travaux
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Thank you for your attention Merci de votre attention
Any reproduction is strictly prohibited - Toute reproduction est strictement interdite - Any reproduction is strictly prohibited