Civil Engineering Commons^™

Limes, Mortars, And Cements, Cyrus G. Emerson

Professional Degree Theses

"Lime, considered as a building material, is not usually regarded as comprehending three principal varieties - viz: Common or air lime, Hydraulic lime, and Hydraulic cement.

The common or air lime, is so called because the paste made from it with water will harden only in air. Lime is made by burning limestone in kilns suitably arranged for that purpose. Two classes of such kilns are in general use; the intermittent or flare kiln and the draw or perpetual kiln."--page 1.

Beaver Bridge, James E. Mcgrath

Professional Degree Theses

“The Little Beaver Bridge is situated on the A. & P. R. R., 3 ¾ S. W. of Rolla it is built on the “Howe Truss” plan and spans a valley through which flows the “Little Beaver Creek” - it has two approaches (stringers supported by trestles), the length of the northern one is 38 ft., while that of the southern one is 35’5”. The bridge is composed of 5 spans and is supported on 6 piers; the length of the bridge proper is 687’ 2”, with the abutments it is 760’7”. The piers are of sandstone and have a …