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ACI 309-72 PDF

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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Place rustication lines located as indicated within acceptable industry tolerances. On multiple use liners, clean liner before each use. Light textures may get lost on a tall building. Try to view the texture sample from a distance with sidelight for the best visual perspective of the texture. Scott Systems Pattern Series: Elastomeric form liners for texturing architectural concrete. The following is one example of how a mock-up on a large project might be specified.

Proper cai and storage of form liner is required to obtain acceptable results. All excess release agent shall be blown or wiped off before the form and liner is put back acci service. Include concrete mix, forming system, form release agents, placement rate, form pressures, joint sealing, vibrating and stripping practices. Submit under provisions of Section Abrasion — Taber H After curing the forms are removed revealing the pattern created by the form liner.

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Cover form liners to protect from oil, dirt and UV exposure. Form liner accessories of fasteners, sealants, rustication and backup strips, form release agents and sealers as scheduled or required.

URETHANE FORM LINERS FOR ARCHITECTURAL CONCRETE SPECIFICATIONS

Provide full scale mock-up using contract adi, methods and workmanship. Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.

Anchor liner to form on centers not to exceed 18 inches mm. Section — Concrete Finishes.

URETHANE FORM LINERS FOR ARCHITECTURAL CONCRETE SPECIFICATIONS – Scott System

Insert pattern number s of series required. Scott System Flex-Liner elastomeric form liner for creating textures in poured-in-place or precast concrete. Schedule concrete pour immediately after application of release agent to avoid precipitation, dust, and debris.

Contractor responsible for design of formwork and back-up of form liner for structural stability and sufficiency. Do not use damaged products.

Avoid vibrator contact with the form liner. Section — Architectural Concrete. Scrub the liner surface with a stiff bristle scrub brush dipped repeatedly in one of the approved release agents. Storage of form liner 309-7 be out of direct sunlight and in temperatures below degrees F 60 degrees C.

Include jointing, form tie location and pattern of 309–72. ACI 72 [78] — CH. Decrease centers as necessary to accommodate form stripping pressures without damaging liner intended for multiple use. Incorporate formwork accessories and minimum one vertical and one horizontal form liner joint. Chamfered corners shall be smooth, solid, unbroken continuous lines.

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This section is based on the products of Scott System, Inc. Form liner layout and termination details. ACI — CH.

ACI Materials Journal

Keyed liner cannot strip unless it is not bonded to form sections and can be peeled from the set concrete after the form has been moved away. Installation instructions and [ Product Data ] verifying compliance with specifications. Custom pattern as indicated on drawing. A minimum of 3 years experience with form liners similar to those required for this Project.

Section — Concrete Formwork. Maintain environmental conditions temperature, humidity, and ventilation within limits recommended by manufacturer for optimum results. Do not use damaged liner when continued use or repair would diminish the aesthetics of the Work. Elongation D — percent: Demonstrate patching and repair procedures for spawled concrete, and voids caused by honeycombing or bug holes.

Approved mock-up shall be the standard by which Work will be evaluated.

Tensile Strength Ultimate D Section — Tilt-Up Concrete. Either use longer pieces of form liner or specify a rustication joint line. Verify lines and levels of formwork and form liner patterns are within allowable tolerances. Menu 3097-2 to content.