Strip
60 per cent small crushed rock
40 per cent beach sand

8 per cent Bitumls
8 per cent water mixed with Bitumuls
Rock was placed in the pug mill and half the Bitumls added
and mixed with the rock; then sand and the rest of the Bitumuls
were added, the material batched, and the strip laid as Strip
A had been laid.

Strip ¢
60 per cent crushed rock
40 per cent beach sand

10 per cent Bitumls
4 per cent water added to Bitumls

The batch was mixed and laid in the same manner as Strips A
and B,

Test Section No, 3

One 50 foot by 50 foot test section of Amalga-Pave was laid.

The

materials were proportioned by weight and mixed in a pug mill.
Two strips were laid, one using 4 per cent asphalt and 4 per cent
oil, the other using 5 per cent asphalt and 3 per cent oil. The
material was mixed and batched as had been the Bitumuls, and one

day was allowed between mixing and laying. The strips were laid
with the Barber-Greene paver, and the test section was rolled with
2 passes of the 10 ton 3-wheeled roller at the time of laying and

one pass with an unloaded lowboy 6-wheeled trailer on the following
day.

Section
A trial batch of one-half yard of 15 per cent HRM Bitumls and

beach sand was laid on a hard surface and rolled with an unloaded
truck.

Additional limited sections of paving were laid using hot and cold
mixes with MC-3 but these proved unsatiafactory due to difficulties
inherent in the use of coral aggregates with this type of binder. The
following observations and results were noted for the tests performed:

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