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finished thickness is 3 inches, and the contract price of 3s. 4d.
per super, yard carries with it a guarantee for three years
without additional cost, the area of the section being 1,963
square yards.
Section No. 4, by Taroads Syndicate, Ltd., also consists
of Guernsey granite coated at the roadside with special
bituminous composition. It is laid in two layers, the first
graded from 2½ inches to ½ inch, and the second f inch topping
finished with fine uncoated chippings. The tar used was
slightly more viscous than the Road Board Specification
No. 2. Taroads combined heater and mixer was employed
for the purpose, the stone being heated previous to the coating
process, then transported in barrows, spread and rolled down
whilst hot to the specified thickness of 3 inches. The area of this
Section is 1,757 square yards, the contract price of 3s. 2d.
per super, yard covering a guarantee for three years without
additional cost.
Section No. 5, by Taroads Syndicate, Ltd., represents
the double pitch grouting method of construction, to the
Road Board specification, in three layers, the first of 2½ inches
stone, the second of 1½ inches stone, and the third of
¾ inch Guernsey granite, each layer being grouted with hot
"Pitchmac" and sand, and the top dressed with 3/8 inch uncoated
chippings, making a finished thickness of 4 inches.
Having an area of 2,006 square yards, this is the largest of
the five sections. The contract price was 5s. 6d. per super,
yard, but it must be taken into account that the work is
guaranteed for four years without additional cost.