ConstructionContracts
Hand application of dust palliative at Al Hasa.
The Dhahran Area Office awarded an open-ended contract for dust
palliatives in early October 1990. Delivery order #1 of the contract was to
stabilize approximately 330,000 square meters of uncompacted, medium-grain
sand with fines at Al Hasa Airport outside Hofuf for the 82d Aviation Brigade.
Tamimi Company of Dammam completed the work on 13 November 1990.
The area was backgraded by a dozer and graded with two passes of a road
grader. CSS-1 asphalt concentrate (0.875 liters per square meter) was mixed
with water at a ratio of 6:1 and applied with penetrations up to half an inch.
The area held up well. Twenty helicopters operated in the area daily but did not
land on these stabilized areas. On the negative side, spreaders had to have
balloon tires to operate in some areas, and only two such spreaders were
available in the country at the time. Also, areas with sand berms required hand
application. It took the contractors 8 days to spray the 3,600-meter long sand
berm that surrounded the airfield.
The delivery order also included treatment of roughly 10,000 square
meters of road, which had a minimum of 9 inches of compacted marl. The
contractor removed the top 3 inches of marl, mixed it with water and roughly
8 liters per square meter of asphalt concentrate, and then spread and compacted
the mixture. Operators used the same equipment to process the soil in the
trafficked areas that they used in other paving operations.34
MEAPO(SWA) received a tasking on 9 October to upgrade 4,000 meters
of a road 7 meters wide at King Fahd International Airport by applying 2 inches
of asphalt for dust abatement to a subbase constructed by a combat engineer
battalion. The contractor was delayed because the engineer troops preparing the
base course lacked adequate equipment.
Previous Page
