University of Virginia Library

753. Road Material Testing. [Lapham and Assistant.]

Laboratory tests are made of both non-bituminous and bituminous
materials. Samples of stone from neighboring quarries are tested for


16

Page 16
specific gravity, absorption, cementing power, toughness, and resistance
to abrasion. Crude petroleum, bituminous emulsions, road oils, asphalts,
tars, etc., are investigated with relation to the properties important for
highway construction. (Spring.)