T-Rib chanelath : a material performing the functions of form and reinforcement ... (1918)
North Western Expanded Metal Co. · North Western Expanded Metal Co. · leaf 72
T-Rib Chanelath Culverts Many culverts are located in remote places, making it neces-sary to haul materials long distances over poor roads, and it isdifficult to procure skilled carpenters in such a locality. All ofthese details tend toward an increase in the cost of formwork,and all of them are… … T-Rib Chanelath is furnished curved to any desired radiusover 24 inches, with the ribs on the outside of the arc. Theexcavation in shape outlines the outside form of the invert, andthe complete cylinder of Chanelath is placed in its final positionand supported properly at the crown by a plank on…
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