guide for precast concrete wall panels
AIA specification for precast concrete section 34102
... Division 3 Section “Architectural Precast Concrete. ” 2. Division 3 Section “Cast-in-Place Concrete for placing connection anchors in concrete and structural topping. 3. Division 3 Section Precast ... Owner.23 Issue Date 9/28/04 SECTION 03410Structural Precast Concrete PCI GUIDE SPECIFICATION FOR STRUCTURAL PRECAST CONCRETE Guide Specification Development:These Guide Specifications have been ... (17.2 MPa) for normal-weight concrete and 3000 psi (20.7 MPa) for lightweight concrete is permitted. 1. Delay detensioning or post-tensioning of precast prestressed concrete units until concrete...
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guide for concrete highway bridge deck construction
... particular attention for bridge decks are as follows:a. The concrete production and delivery equipmentshould be reviewed at the preconstruction plan- CONCRETE HIGHWAY BRIDGE DECK CONSTRUCTION 345R-9b.c.d.e.TABLE ... Reinforcement iBOTTOM OF SLABFig. 2.4 Typical dimensions and tolerance for location ofreinforcing steel in concrete bridge decksFig. 2.5 Comparison of bridge deck thickness requirements for ... use formsb. A clear view of the bottom of the concrete tofacilitate inspection CONCRETE HIGHWAY BRIDGE DECK CONSTRUCTION 345R-11Fig. 5.1 Steel stay-in-place forms5.2.2 Stay-in-place forms...
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guide for consolidation of concrete
... and wall forms: Centrifu-gal force = 0.5 [(mass of form) + 0.2 (concrete mass)].2. For stiff mixtures in pipe and other rigid forms: Centrif-ugal force = 1.5 [(weight of form) + 0.2 (concrete ... consolidation of concrete by permitting place-ment with less consolidation effort. Refer to reports of ACICommittee 226 for more information regarding these mate-rials. The amount of consolidation effort ... combination of the consolidation process and formwork details. Formwork con-siderations are addressed by ACI 347R, while ACI 303R pro-vides information on the use of form release agents. The formed concrete...
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guide for design and construction of concrete parking lots
... areas and access for delivery vehicles. The design and construction of concrete slabs for parking lots and outside storage areas share many similarities with the design and construction of streets ... Performance and Design of GUIDE FOR DESIGN AND CONSTRUCTION OF CONCRETE PARKING LOTS 330R-21Plain Concrete Pavement,” Highway Research Record No.471, Highway Research Board, pp. 91-98. Concrete ... Specification for Curing Concrete 311.4R Guide for Concrete Inspection311.5R Concrete Plant Inspection and Field Testing of Ready-Mixed Concrete 325.1R Design of Concrete Overlays for Pavements 504R Guide...
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guide for determining the fire (reapproved 1994) endurance of concrete elements
... the bottom of the slab. If the underside of the slab is exposed to fire, the bottom of the slab will expand more than the top, resulting ina deflection of the slab. The tensile strength of the ... percent of the maximum negative mo-ment reinforcement in the span extend throughout the span FIRE ENDURANCE OF CONCRETE ELEMENTS 216R-7 Fire Fire @ 3 hrFig.2.2.1-Moment diagrams for one-half of ... part of the slab exertscompressive forces on the heated portion. The compressiveforce, or thrust, acts near the bottom of the slab when the fire first occurs, but as the fire progresses the...
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guide for measuring, mixing, transporting, and placing concrete
... methods of placing concrete. 304R-1 7MEASURING, MIXING, TRANSPORTING, AND PLACING CONCRETE 5.2—PlanningA basic requirement in all concrete handling is that bothquality and uniformity of the concrete, ... 304R-1 5MEASURING, MIXING, TRANSPORTING, AND PLACING CONCRETE Fig. 5.2(a) to (d)—Correct and incorrect methods of placing concrete. 304R-16ACI COMMITTEE REPORTFig. 5.2 (e) to (h)—Correct and incorrect ... uniformity and, perhaps, re-duced mixing time when confirmed by mixer performance 304R- 9MEASURING, MIXING, TRANSPORTING, AND PLACING CONCRETE tests (U.S. Department of Commerce 1966, Gaynor and Mullarky...
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guide for structural lightweight-aggregate concrete
... involvement before design. Concrete, structural lightweight aggregate—See concrete, structural lightweight. Concrete, structural lightweight (SLC) Structural lightweight-aggregate concrete made with structural ... successful use, and the performance of structural lightweight-aggregate concrete in service.This guide includes a definition of lightweight-aggregate concrete for structural purposes, and discusses, ... cured concrete. Fig. 4.4—Creep: steam-cured concrete. Fig. 4.5—Drying shrinkage: normally cured concrete. GUIDE FOR STRUCTURAL LIGHTWEIGHT-AGGREGATE CONCRETE 213R-15drying lightweight concrete...
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guide for the use of silica fume in concrete
... products,specifications.CONTENTSChapter 1—Introduction, p. 234R-21.1—General1.2—What is silica fume? 1.3 Silica fume versus other forms of synthetic silica 1.4—Using silica fume in concrete 1.5—Using silica fume in blended ... is silica fume (ACI 116R). The initial interest in the use of silica fume was mainlycaused by the strict enforcement of air-pollution controlmeasures in various countries to stop release of the ... fume in concrete. There are no references to the use of silica fume in the con-crete industry in the publications of either OSHA or ACGIH. The committee recommends that workers handling silica fume...
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guide for use of normal weight and heavyweight aggregates in concrete
... 221R-1This guide presents information on selection and use of normal weight and heavyweight aggregates in concrete. The selection and use of aggregates in concrete should be based ... routine inspection of the material source and of the aggregate processing plant and handling system,all the way through to the point of batching; routine sam-pling and testing of production and ... processing 4.3—Beneficiation4.4—Control of particle shape4.5—Handling of aggregates 4.6—Environmental concernsACI 221R-96(Reapproved 2001) Guide for Use of Normal Weight and Heavyweight Aggregates...
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design recommendations for precast concrete structures
... 550R-1 Recommendations for the design of precast concrete structures are pre-sented. Design of individual members and of connections for the integra-tion of members into structures are ... to provide designs for the mem-bers and/or connections. PRECAST CONCRETE STRUCTURES 550R-3The contract documents should show the loads to be con-sidered in design of the precast concrete elements ... defor-mation, wind forces, and earthquake forces require specialattention. Details of such connections are especially impor-tant to insure adequate performance of precast structures. 2.3Precast...
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guide for precast concrete wall panels
... Editorial subcommitteeThis guide presents recommendations for precast wall panels. This guide should be used with ACI 318 “Building Code Requirements for Reinforced Concrete which may be legally ... designing, manufacturing, and erecting precast concrete wall panels. Although the focus is on precast wall panels produced in established precasting plants, siteprecasting is an option that has been ... considered for precast wall panels when no bending moment occurs ateither end of the panel.2.2.5 Reinforcement- Precast wall panels are not re-quired to have lateral hoop or spiral reinforcement...
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guide for the analysis, design, and construction of concrete-pedestal water towers
... 371R-53.1—General3.2—Concrete3.3—Formwork3.4—Reinforcement3.5—Concrete finishes3.6—Tolerances3.7—Foundations3.8—Grout Guide for the Analysis, Design, and Construction of Concrete-Pedestal Water Towers Reported ... ASTM A 497 are permitted for reinforcement resisting other forces, and for shrinkage and temperature steel.371R-1 5GUIDE FOR CONCRETE-PEDESTAL WATER TOWERS 4.8.4.3 The wind ovalling moment Mh ... translation and rotation of the con-crete at the interface region, and the effect on the membraneaction of the steel tank;(e) Eccentricity of loads, where the point of application of load does...
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guide for selecting proportions for high-strength concrete with portland cement and fly ash
... ACI 211.4R-93(Reapproved 1998) Guide for Selecting Proportions for High-Strength Concrete with Portland Cement and Fly Ash Reported by ACI Committee211Olga Alonzo*William ... of the cement and fly ash. In Tables 4.3.5(a) and (b), recommended maximumw/(c+p) are given as a function of maximum-size aggregate HIGH-STRENGTH CONCRETE WITH PORTLAND CEMENT AND FLY ASH 211.4R-7Table ... moisture minus the absorption of theaggregate. HIGH-STRENGTH CONCRETE WITH PORTLAND CEMENT AND FLY ASH 211.4R-11Companion mixture #l Cement Fly ash SandCoarse aggregateWater (including 2.5...
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guide for polymer concrete overlays
... beevaluated for each type of damage to the overlay. Com- POLYMER CONCRETE OVERLAYS 548.5R-17Table 6.1-Typical test methods for polymer concrete overlays MaterialBinderAggregate Polymer concrete Overlay ... Strengthof Concrete 503R Use of Epoxy Compounds with Concrete 503.5R Guide for the Selection of Polymer Adhesiveswith Concrete 546.1R Guide for Repair of Concrete Bridge Super-structures548R Polymers ... (ACI 548R). Polymer The product of polymerization; more com-monly a rubber or resin consisting of large moleculesformed by polymerization (ACI 548R). Polymer concrete (PC) -Polymer concrete...
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guide for precast cellular concrete floor, roof, and wall units
... for Concrete ReinforcementA 615 Standard Specification for Deformed and Plain Billet-Steel Bars for Concrete ReinforcementC 33 Standard Specifications for Concrete AggregatesC 144 Standard ... portland cement slurry or hot dipped zinc coating.CHAPTER 3 CONCRETE PROPERTIES3.1—Compressive strengthLow-density concrete used in precast reinforced cellular concrete floor, roof, and wall units ... for Reinforced Concrete 9.1.2—ASTM StandardsA 82 Standard Specification for Steel Wire, Plain, for Concrete ReinforcementA 185 Standard Specification for Welded Steel Wire Fab-ric, Pain, for...
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