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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All excess release agent shall be blown or wiped off before the form and liner is put back into service.

Place rustication lines located as indicated within acceptable industry tolerances. Demonstrate patching and repair procedures for spawled concrete, and voids caused by honeycombing or bug holes. Section — Architectural Concrete. 309-2

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Do not use damaged products. Avoid vibrator contact with the form liner. Approved mock-up shall be the standard by which Work will be evaluated. Cover form liners to protect from oil, dirt and UV exposure.

Do not use damaged liner adi continued use or repair would diminish the aesthetics of the Work. Form liner accessories of fasteners, sealants, rustication and backup strips, form release agents and sealers as scheduled or required. Section — Tilt-Up Concrete. Form liner layout and termination details. Never try to match textures end to end, i. ACI — CH. ACI 72 [78] — CH. Incorporate formwork accessories and minimum one vertical and one horizontal form liner joint. Requests for aco will be considered in accordance with provisions of Section Maintain environmental conditions temperature, humidity, and ventilation within limits recommended by manufacturer for optimum results.

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Provide full scale mock-up using contract materials, methods and workmanship. Custom pattern as indicated ack drawing.

Menu Skip to content. Section — Concrete Formwork. Contractor responsible for design of formwork and back-up of form liner for structural stability and sufficiency. Anchor liner to form on centers not to exceed 18 inches mm. Verify lines and levels of formwork and form liner patterns are within allowable tolerances.

On xci use liners, clean liner before each use. Try to view the texture sample from a distance with sidelight for the best visual perspective of the texture. Decrease centers as necessary to accommodate form stripping pressures without damaging liner intended for multiple use. Include concrete mix, forming system, form release agents, placement rate, form pressures, joint sealing, vibrating and stripping practices.

ACI 78 — CH. A minimum of 3 years manufacturing experience with form liners similar to those required for this Project. Submit under provisions of Section Use of some types of release agents will adversely affect the elastomeric urethane. Scrub aaci liner surface with a stiff bristle scrub brush dipped repeatedly in one of the approved release agents.

URETHANE FORM LINERS FOR ARCHITECTURAL CONCRETE SPECIFICATIONS

Schedule concrete pour immediately after application of release agent to avoid precipitation, dust, and debris. Chamfered corners shall be smooth, solid, unbroken continuous lines. Provide a 309-7 for evaluation of surface preparation techniques and application workmanship. Denver, CO Tel: After curing the forms are removed revealing the pattern created by the form liner.

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This section is based on the products of Scott System, Inc. Storage of form liner shall be out of direct sunlight and in temperatures below degrees F 60 degrees C. Indicate backup, rustication, reveal, and chamfer strip locations. Elastomeric form liners for texturing architectural concrete. A minimum of 3 years experience with form liners similar to those required for this Project. The following is one example of how a mock-up on a large project might be specified.

Installation ac and [ Product Data ] verifying compliance with specifications. Light textures may get lost on a tall building.

Hardness — D — Shore A: Store and dispose of adi materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction. Form corners indicated to be chamfered with PVC chamfer. Include jointing, form tie location and pattern of placement.

Elongation D — percent: Tensile Strength Ultimate D Scott Systems Pattern Series: