esbg09 minke - clay plasters.ppt
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Clay plasters
what properties are important for
building practise ?
Prof. Dr. Gernot Minke, University ofKassel
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Scientists investigate:
Emount of clay minerals
Kind of clay minerals
Grain-size-distribution
Chemical composition
Modulus of elasticity
Liquit limit
Plastic limit Index of plasticity
Index of consistancy
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In buiding practise we need to know:
linear shrinkage
resistance against abrasion
resistance against erosion
absorption capacity
adhesion to the plastered surface
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