Chicago : Engineering and Contracting Pub. Co. · leaf 132
nsion bus were described inlliis paper. These improvements obviate thedifficulties found by sonic of the earlier Ger- August 2, 1911. ENGINEERING & CONTRACTING 117 man investigators in getting concordant re-sults. Table 1 presents the condensed dataof the investigators mentioned. The foregoing… … Fig. 1—Per Cent Contraction of Neat Ce-ment Bars Kept Four Years in Air. changes in reinforced concrete. Considere, in1899, reported the behavior of small bars ofneat cement and of mortar made with GOO kg.(720 lbs.) cement to each cubic meter of sand.The prisms were 60x25x600 mm. (24x1x24ins.,…
Buildings
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