Odette Grille (X) (asker) Feb 1, 2007:

utility service chambers je crois qu'il s'agit de compartiments d'accès aux ouvrages de drainage de surface...
Sauf que je n'en sais rien...
Un peu plus de contexte
30 MPa Structural Grade Concrete

(for curb & gutter work, miscellaneous structures related to surface drainage work utility service chambers (below/above ground surface), exterior slabs-on-grade including drainage ditches, bollard posts, fencing posts etc.) :

In accordance with ACI 301 with a minimum 28 day compressive strength of 30 MPa

karim_benahmed Feb 1, 2007:

D'accord avec Emma!

Emma Paulay Jan 31, 2007:

To me it looks like it should read "miscellaneous structures related to surface drainage work: utility service chambers"