MASCO Catalog: Concrete Forming & Accessories

255 MASONS SUPPLY COMPANY Oregon (800) 537-3407 ♦ Washington (800) 537-6216 Clackamas | Eugene | West Eugene | Hillsboro | Medford | Portland | Salem | Ridgefield | Seattle | Tacoma | Woodinville M A S C O . N E T GENERAL & TECH INFO GLOSSARY OF TERMINOLOGY LINER Any sheet or layer of material attached directly to the inside face of the forms to improve surface quality, alter the texture, or to imprint specific architectural patterns on the finished concrete. LIVE LOAD The total weight of workers, equipment, buggies, vibrators and other loads that will exist and move about due to the method of placement, leveling and screeding of the concrete pour. LOAD EQUALIZERS A system of equalizing sheaves designed to distribute the load equally to each form lift point when multiple-leg slings are used to lift a form. MODULAR FORMWORK Prefabricated all-metal or metal-supported- plywood systems in standard sizes with an integral provision for tie and connecting hardware. MONOLITHIC Concrete placement technique in which the slab, the beams, the columns, and the walls or any combination of the above elements are poured at the same time. MUDSILL A plank, or concrete slab, on the ground, to provide a level surface and support to concrete forms. MULTI-LIFT The vertical stacking of forms in tiers for any height wall. A wall requiring more than one row of forms is generally referred to as multilift. NAILER Strip of wood or other material attached to or set in concrete or attached to steel to facilitate making nailed connections. OFFSET A displacement or abrupt change in line or the distance between two parallel lines; such as a change in wall thickness which will create a vertical offset. ONE-SIDED A wall formwork system having only one forming FORMWORK side, requiring special provisions for tieing and support. Commonly required when placing concrete against sheet pile, slurry walls, soldier beam embankments, and existing concrete or concrete block walls. PANEL A section of form sheathing constructed from boards, plywood, metalsheets, etc., that can be erected and stripped as a unit. Panels can be built on jobsite or prefabricated factory built. PAN-JOIST A light slab with ribs normally 24 to 36 inches on center acting as beams. The joists or ribs run at right angles to primary beams or girders. PARAPET Part of a wall that extends above the roof level. PENCIL ROD Metal rod (wire), usually about ¼" diameter, used in conjunction with special bearing clamps to perform as a wall form tie. PENETRATION Any concrete embedment device that must pass through the form face (such as anchor bolts, rebar, or dowel rods). PERMANENT FORM Any form that remains in place after the concrete has developed its design strength. The form may or may not become an integral part of the structure. PILASTER Column built with a wall, usually projecting beyond the wall face. PLATE A flat horizontal member such as a 2 x 4 placed on the footing for leveling and upon which the forms are set, sometimes referred to as a “shoe.” PLUMB Vertical or the act of making vertical. POST-TENSIONED Reinforced concrete in which, after the CONCRETE concrete has set and sufficiently hardened, the desirable distribution of stress is achieved by post tensioning steel tendons, bars or wires. PRECAST CONCRETE Concrete units (such as beams, joists, deck panels, or wall panels) cast elsewhere than its final position and then set in place. PRESTRESSED A system for utilizing the compressive strength of CONCRETE concrete by producing required compressive stresses with highly stressed tension rods, tendons or wires. REBAR Abbreviation for “Reinforcing Bar.” RETAINING WALL A wall, which is designed to resist horizontal loads such as those imposed by soil or water. RIBS Parallel structural members backing sheathing in a prefabricated form. Same as crossmembers. RIGGING Suspension components, such as chains, shackles, connecting links and eye hooks used to suspend formwork gangs or components from a crane or similar lifting device. RUSTIFICATION A groove in the concrete formed by securing a strip to the face of the formwork. Also referred to as a “feature strip.” SAFETY FACTOR See Factor of Safety. SCAB A small piece of wood fastened to two formwork members to secure a butt joint. SCAFFOLD BRACKET A premanufactured cantilevered bracket designed to attach to formwork gangs and support scaffold planks that are used for a work platform when placing and vibrating concrete. SCAFFOLDING An elevated platform supporting workers, tools, and materials, either attached to wall forms or free standing. SCREED The tool used to control the top surface elevation of freshly placed concrete. SHEATHING The material forming the contact face of forms, also called lagging or sheeting. SHE-BOLT The outer unit of a three-piece wall tie that contains female threads to engage the external threaded inner unit (rod). SHIM Thin pieces of material used to bring abutting members to an even, level bearing. SIDERAIL Perimeter frame member of prefab form panel which is perpendicular to crossmembers. SILL Horizontal bearing member as a plate. See Plate. SKIN PLATE The steel form face of an all-steel form brace.