The project described in this report represents one phase of comprehensive research with all types of aggregates for highway paving mixtures in Kentucky. It was designed to show the fundamental properties of limestones which determine their suitability for this type of use -- particularly their so-called durability. For this reason, emphasis was placed on analysis of the intrinsic properties of the aggregates themselves rather than analysis of procedures or test methods, such as freezing and thawing.

Report Date


Report Number

No. 40

Digital Object Identifier



Prepared for presentation at the 28th Annual Meeting of The Highway Research Board, Washington, D.C.: Session No. 8 (December 8, 1948).