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. Do not use damaged products. Requests for substitutions will be considered in afi with provisions of Section On multiple use liners, clean liner before each use. Scrub the liner surface with a stiff bristle scrub brush dipped repeatedly in one of the approved release agents.
Include jointing, form tie location and pattern of placement. Indicate backup, rustication, reveal, and chamfer strip locations.
Place rustication lines located as indicated within acceptable industry tolerances. Protect reinforcing steel from exposure to release agents. Form corners indicated to be chamfered with PVC chamfer.
Approved mock-up shall be the standard by which Work will be evaluated. Tensile Strength Ultimate D Menu Skip to content. Anchor liner to form on centers not to exceed 18 inches mm. Sectioning of column forms will eliminate this problem. Verify lines and levels of formwork and form liner patterns are within allowable tolerances.
Citation Styles for “Recommended practice for consolidation of concrete (ACI 309-72).”
Scott System Flex-Liner elastomeric form liner for creating textures in poured-in-place or precast concrete. Elongation D — percent: Thoroughly vibrate concrete to achieve consolidation, and minimize voids.
Storage of form liner shall be out of direct sunlight and in temperatures below degrees F 60 degrees C.
Wci vibrator contact with the form liner. Include concrete mix, forming system, form release agents, placement rate, form pressures, joint sealing, vibrating and stripping practices.
Light textures may get lost on a tall building. Use of some types of release agents will adversely affect the elastomeric urethane. ACI 78 — CH. Section — Tilt-Up Concrete. Maintain environmental conditions temperature, humidity, and ventilation within limits recommended by manufacturer for optimum results. Section — Concrete Formwork. Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
Never try to match textures end to end, i. Contractor responsible for design of formwork and back-up of form liner for structural stability and sufficiency. When deciding on the extent of the 3099-72, consider all the major different types of work on the project. Section — Precast Concrete. Insert pattern number s of series required. Decrease centers as necessary to accommodate form stripping pressures without damaging liner intended for multiple use.
Full text of “ACI: Manual of Concrete Practice, Part 1”
Provide full scale mock-up using contract materials, methods and workmanship. Adi instructions and [ Product Data ] verifying compliance with specifications. Custom pattern as indicated on drawing. Store and use form liner panels at temperatures between 40 degrees F and degrees F.
Elastomeric form liners for texturing architectural concrete. Do not use 309-722 liner when continued use or repair would diminish the aesthetics of the Work.
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Internally vibrate into previous lift to avoid lift lines. Submit under provisions of Section Form liner layout and termination details. Proper cleaning and storage of form liner is required to obtain acceptable results. 3097-2, CO Tel: Hardness — D — Shore A: Cover form liners to protect from oil, dirt and UV exposure.
Try axi view the texture sample from a distance with sidelight for the best visual perspective of the texture. Section — Architectural Concrete. A minimum of 3 years experience with form liners similar to those required for this Project. Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
After curing the forms are removed revealing the pattern created by the form afi.