ACI Standard. Recommended Practice for. Consolidation of Concrete (ACI 72). D. H. BASGEN. R. H. BRUBAKER. JOHN C. FARMER. LARS FORSSBLAD. Recommended Practice for Consolidation of Concrete (ACI ). Front Cover. American Concrete Institute. American Concrete Institute, – Concrete – Recommended Practice for Consolidation of Concrete (ACI ) (Reaffirmed ). Front Cover. ACI Committee American Concrete Institute,
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Contractor responsible for design of formwork and back-up of form liner for structural stability and sufficiency.
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Section — Architectural Concrete. Scott System Flex-Liner elastomeric form liner for creating textures in poured-in-place or precast concrete. Do not use damaged products. Tensile Strength Ultimate D Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
Include jointing, form tie location and pattern of placement. Internally vibrate into previous lift to avoid lift lines. Include concrete mix, forming system, form release agents, placement rate, form pressures, joint sealing, vibrating and stripping practices.
Storage of form liner shall be out of direct sunlight and in temperatures below degrees F 60 degrees C. Hardness — D — Shore A: Protect reinforcing avi from exposure to release agents.
Verify lines and levels of formwork and form liner patterns are within allowable tolerances. Maintain environmental conditions temperature, humidity, and ventilation within limits recommended by manufacturer for optimum results.
Indicate backup, rustication, reveal, and chamfer strip locations. Cover form liners to protect from oil, dirt 039-72 UV exposure. Place rustication lines located as indicated within acceptable 3309-72 tolerances.
Section — Concrete Finishes. Requests for substitutions will be considered in accordance with provisions of Section Elongation D — percent: Insert pattern number s of series required. Custom pattern as indicated on drawing. Prevent matrix build-up on the liner surface. Thoroughly vibrate concrete to achieve consolidation, and minimize voids.
Abrasion — Taber H Form liner accessories of fasteners, sealants, rustication and backup strips, form release agents and sealers as scheduled or required.
Provide a mock-up for evaluation of surface preparation techniques and application workmanship. Use of some types of release agents will adversely affect the elastomeric urethane.
Anchor liner to form on centers not to exceed 18 inches mm. Chamfered corners shall be smooth, solid, unbroken continuous lines. Never try to match textures end to end, i. Elastomeric form liners for texturing architectural concrete. Submit under provisions of Section After curing the forms are removed revealing the pattern created by the form liner.
Scott Systems Pattern Series: Schedule concrete pour immediately after application of release agent to avoid precipitation, dust, and debris.
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Try to view the texture sample from a distance with sidelight for the best visual perspective of the texture. This section is based on the products of Scott System, Inc.
Installation instructions and [ Product Data ] verifying compliance with specifications. ACI — CH. Proper cleaning and storage of form liner is required to obtain acceptable results. Light textures may get lost on a tall building. Scrub the liner surface with a stiff bristle scrub brush dipped repeatedly in one of the approved release agents. A minimum of 3 years experience with form liners similar to those required for this Project.