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M A S C O . N E T
SLAB
The thinner portion of the floor, usually of uniform
depth, that is between the drop heads or
beams.
SLING
A length of cable with a loop at each end,
usually the cable line from the crane hook to
ganged form.
SLIP FORM
A form which moves, usually continuously, during
placing of the concrete. Movement may be
either horizontal or vertical. Slip forming is like an
extrusion process with the forms acting as
moving dies to shape the concrete.
SNAP TIE
A wire-type tie with or without spreader washer
or cones. After forms are released, the
protruding tie ends are snapped off by twisting
at a predetermined break-off crimp usually
about 1" in the concrete.
SOLDIERS
Vertical wales used for strengthening or
alignment.
SPANDREL BEAM
A beam in the perimeter of a building, spanning
between columns and usually supporting floors
or roof. An up-turned spandrel depth dimension
extends above the floor, and a down-turned
spandrel extends below the floor.
SPREADER
A brace, usually of wood, inserted in forms to
keep the form faces the proper distance apart
until the concrete is placed.
SPREADER BEAM
A beam utilized to distribute the weight of a
ganged form through two or more equalized
vertical pick-up points.
SPUD
Adjustable bolt-like strut extending
between the skin of tunnel forms and bored rock
tunnel walls to provide position support of the
formwork.
STAKE
A pointed wood or metal object driven in
ground to attach brace or to support form sides
in footing forming.
STIFFENER
A structural member for the support of the
plywood face or skin plate on panel forms
sometimes called ribs.
STRIP
To remove formwork from concrete.
STRIPPING BAR
A solid bar positioned in-between form panels or
adjoining ganged forms which is the first unit
stripped thereby providing relief to readily strip
the large form panels; also referred to as
“wrecking strips.”
STRONGBACK
A load gathering member attached to the back
of the formwork on the outside of the walers for
added strength, to hold proper alignment
(sometimes referred to as “stiffbacks”).
STUD
Supporting member to which sheathing is
attached.
TAG LINE
Line connected to gang form or flying form to
control free swing movement during crane
lifting.
TAPER TIE
A one-piece reusable form tie with a slight taper
to facilitate removal.
TELLTALE
Any device designed to indicate movement of
formwork.
TEMPLATE
Thin plate or board frame used as a guide in
positioning or spacing of form parts,
reinforcements, anchors, etc.
TIE
A concrete form tie is a tensile unit adapted to
holding concrete forms secure against the
lateral pressure of unhardened concrete, with or
without provision for spacing the forms a definite
distance apart, and with or without provision for
removal of metal to a specified distance back
from the finished concrete surface.
TIE DADO
Half-slot thickness dado’s at the siderails of
adjoining forms provide the tie location slot
common to many prefabricated form systems.
TOENAIL
To drive a nail at an angle.
TRAVELER
Traveling support and bracing for ganged tunnel
and culvert formwork.
WALER
Load gathering members used to hold studs or
panel forms in position.
WALKWAY SYSTEM
All components including, but not limited to,
scaffold brackets, scaffold planks, guard rails,
toeboards and guard rail posts erected to
provide a work platform for placing and
vibrating concrete and to prevent workers from
falling.
WATERSTOP
Rubber, plastic, or other material inserted in a
construction joint to prevent the seepage of
water through the joint.
WEDGE
A piece of wood or metal tapered to a thin
edge, used to adjust elevation, tighten
formwork, etc.
WEDGE BOLT
A two-way action designed wedge which
contains a slot to facilitate its function as a
connecting bolt also.
GENERAL & TECH INFO
GLOSSARY OF TERMINOLOGY