well ditsributed. slab failed.
*
Plate XXXII. Concrete Tests. Slab No. 3.
details (showing loads; printed orientation)
ex
“Report of tests of reinforcing concrete floor slabs” in Third Biennial Report of the Department of Engineering of the State of California.
December 1, 1910, to November 30, 1912
(Sacramento, 1912) : 88-89
Slab No. 3
Reinforced with American triangle mesh woven wire 4 inches by 4 inches mesh, ¼ inch and 12 ½ gauge wires.
Cross sectional area per foot in width, 0.1494 square inches.
Load, 3,438 pounds. Deflection 0.82 inch.
Load, 5,185 pounds. Deflection 2.21 to 3.50. Small cracks observed on underside of slab, well ditsributed. [sic]
Load, 5,404 pounds, slab failed — 156 pounds per square foot ; reinforcement not broken.
pp 88-89
—
am thinking of these — the likes of these — as a kind of blind photography.
or second look — second sight — long after original significance has leached out.
no matter. beside the point.
tags:
concrete; failure; beside the point; sight; tests