List Of Portland Cement Concrete Highways In The United States And Canada PDF Download

"That concrete foundations are best for permanent highways is an acknowledged fact. There are, however, a number of acceptable wearing surfaces, each particularly adaptable to varying traffic conditions. In order that the advantages of these wearing surfaces might be adequately treated, the manufacturers of asphalt, brick and bituminous products were requested to prepare articles explaining the use of their materials."--Foreword, page 4.