CHAPTER XI.

MASONRY.

Stone 248

Cements, mortars, and concretes 249

Construction of arches, wings, and parapet 253

Culverts and drains 255

Retaining walls 256

Handbook of Railroad Construction; For the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States. · 第 11 / 19 章