IN SITU EXPERIMENTAL CONSTRUCTION OF OVERLAY WITH CEMENT TREATED ASPHALT MIXTURES

Abstract

In situ construction test on an overlay with cement treated asphalt mixture (CTAM) for airport asphalt pavements was conducted and then a repeated loading test with a landing gear same as B-747 aircraft was carried out. As a result, the following items were found; an overlay construction up to the thickness of 200mm was fully possible, the overlaid pavement had a sufficient load carrying capacity against 1, 000 times of repeated loading and joints had no influence on the structural condition of pavement. Based on these, the fundamental principle for structural design of overlay construction was developed.