5. Hourdage joints on a 20 cm wall
When the mason mounts his blocks (20 cm in the case studied), he applies two parallel strands of hydraulic binder mortar (cement and/or lime) to the bottom row. He then lays the upper block, which he adjusts vertically and horizontally.
In this example, we have taken the following characteristics:
two rods 5 cm wide and 2 cm high;
the coefficient of linear expansion α is 1 · 10–5 per °C ;
modulus of elasticity E is 100,000 kg/cm2.
5.1 Winter" calculation note
The calculation note required to draw the three curves making up the Glaser diagram is shown in Table 5.
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Hourdage joints on a 20 cm wall
35 cm semi-firm limestone (density ≥ 2,000 kg/m3)
Bibliography
- (1) - DTU Th-K 77 - Règles de calcul des caractéristiques thermiques utiles des parois de construction. - CSTB, n° 1478 de nov. 1977 et n° 1512 de juin 1978.
- (2) - Direction générale de l'Urbanisme de l'Habitat et de la Construction - Réglementation thermique 2005 (RT 2005). - Disponible sur Internet :...
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