JOB SITE MANAGEMENT - CONTINUED
COMPACTION OPERATIONS - CONTINUED
Perform the following steps to compact soil:
Load scraper bowl, close apron, and raise bowl to travel height.
Drive in 1st gear in longitudinal direction of work surface.
Offset subsequent passes by width of one tire.
After longitudinal direction has been compacted, repeat operation at 45-degree angle to longitudinal direction.
After compaction at 45-degree angle, repeat com-
paction in a cross pattern as shown.
As a result of this operation, each square foot of ground will have been subjected to six tire passes at 28,000
lb (12,700 kg) per tire. Even after a single pass, ground will not be suitable to grow grass due to induced
After compaction, tilling is required to break up and aerate soil, as required.
SEALING WORK SITE FROM RAIN
Sealing a work site in anticipation of rain will minimize slippage in construction schedule caused by rain, pooling of
water, and poor underfoot conditions.
A properly compacted work site can shed 2-4 in. (5-10 cm) of rain in an 8-hour period.
Begin by using a sheepsfoot compactor to compact surface.
Follow by land planing surface with scraper.
Finish by compacting surface using scraper wheels.
END OF WORK PACKAGE