Test Section No. 1 The two-course macadam (HX Bitumils) proved to be well integrated. with sufficient asphalt to make a good road surface if rolling and working by traffic comparable to that given macadam in the U. S. could be provided. The rolling and compacting possible at the Jobsite, however, was insufficient for the dispersal of asphalt into the rock and could not provide a surface comparable to a batched mix surface. Test Section No, 2 The batched HRM Bitumuls mix laid made a good pad, sufficient for traffic, and it would improve with use. The 6 per cent Bitumuls mix appeared slightly lean, but the 8 per cent and 10 per cent mixes were well bonded, elastic, and well set up. Test Section No, 3 The Amalga-Pave was observed to be pliable and well integrated, but too soft. It showed no indication of setting up. Section The trial batch of 15 per cent Bitumuls and sand set up well, was plastic, and seemed to make a fairly good paving. In view of these test results, it appeared that of the mixtures tested the mixture for Strip B of Test Section No. 2 would produce the best and most economical paving for the purposes intended. The above described field tests were supplemented by a series of tests conducted in laboratories in the Los Angeles area using coral aggregate imported from Eniwetok. Hot mixed pavement was included in these tests but an analysis of costs, which was carefully prepared by and engineer having many years experience in the paving field, indi- cated that hot mixed pavement was not economical, and the laboratory tests, as well as the field tests, led to the conclusion that cold mixed pavement should be used, The following is an excerpt from the> report of laboratory tests on coral aggregates: Coral The ledge coral compares favorably in hardness with limestone, Its absorption after being dried to constant weight and submerged for 48 hours is only 3.7 per cent which is not high, and also compares favorably with most normal aggregates. 5 -283