The sides of the mat panels are constructed to
interlock with a rotating motion. The end connectors
are arranged with the prongs up on one end and down
on the other (fig. 11-1, section A-A). By placing the
end connector of one mat properly over the end
connector of the previous mat, you can form a
continuous layer of matting. A flat-locking bar is then
inserted into the slot common to the two mats to form
a nonseparable joint.
The physical characteristics of AM-2 matting are
shown in table 11-1.
AM-2 mats are packaged in two standard pallet
loads for storage and shipment. One pallet assembly,
designated F11, consists of 11 full-length mats, 2
half-length mats, and 13 locking bars (fig. 11-2). The
other mat pallet, designated F15, contains 16 full-length
mats, 4 half-length mats, and 20 locking bars
(fig. 11-3). The pallets are fabricated end frames that
are held together by tie rods or strapping. The end
frames fit around the ends of the mats and become the
storage place for the locking bars.
The quantity of mats found in the standard pallet
assembly (F11) provides a width of two rows (4 feet)
on a runway or taxiway that is 72 feet wide. For widths
other than 72 feet, more or less coverage (in terms of
strip length) is obtained. Since the parking and storage
areas need not have a specific mat pattern, as is
required on the runways and taxiways, the extra
half-length of full-length mats that result from the
runway construction may be used in these areas. The
use of a guide rail and/or keylocks will not affect the
amount of coverage to any great extent.
As a Steelworker, you can be assigned to a project
placing AM-2 mats for airfield surfaces; therefore,
you need to be familiar with the procedures used for
installing mats. Primary operations involving site
preparation and pallet staging are also discussed.
Additionally, information on manpower requirements
and the organizational structure of the installation
crew is presented.
he soil and subbase materials of the site selected
as the SATS field must be suitable for use with the
AM-2 landing mats. The subbase material must have
a minimum compaction of 95 percent, and the
engineering staff will provide you further guidance
based on their analysis of the soil type and the
available base materials.
The operations that are part of the site preparation
that must be completed before mats are installed are
1. The terrain in the area to be used must be
cleared, leveled, and rolled to provide the designated
compaction for the matting base. Grading must provide
adequate drainage of water away from the field area and
the soil must be disturbed as little as possible in
obtaining the prescribed finish. These operations will
provide a soil having a maximum bearing capacity.
2. The soil in any area under the matting, requiring
installation of service, drainpipes, or other objects, must
be backfilled and thoroughly compacted
Table 11-1.Physical Characteristics of AM-2 Matting