guide for precast cellular concrete floor, roof, and wall units
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 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 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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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 submittal of concrete proportions
... all of these aggregate properties influ-ence the proportioning of the concrete mixture, they should besubmitted to support the proposed mixture proportions. GUIDE FOR SUBMITTAL OF CONCRETE PROPORTIONS ... selection of the appropriatefcr′ . Submittal of concrete mixture proportions should con-tain the method used to select fcr′ for each class of concrete. 4.2—Past performance record submittal When ... Recommended Practice for Evaluation of Strength Test Results of Concrete 301 Specifications for Structural Concrete 318 Building Code Requirements for Structural Concrete 544.3R Guide for Specifying,...
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guide for the design and construction of fixed offshore concrete structures
... B.11- Other factorscriteriaPREFACE Concrete structures have been used in the North Sea and other offshore areas of the world. With the rapid expansion of knowledge of the behavior of concrete structures ... for consideration by the designer. The design of offshore structures requires much creativity of the designer, and it is intended that this guide permit and encour-age creativity and usage of ... corrosion of the reinforcement and hardware, and abrasion of the concrete. (b) Splash zone-Freeze-thaw durability, corrosion of the reinforcement and hardware and the chemical deterioration of the concrete, ...
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guide for concrete floor and slab construction
... isapplicable to the construction of normal weight and structural CONCRETE FLOOR AND SLAB CONSTRUCTION 302.1R-3lightweight concrete floors and slabs made with conventionalportland and blended cements.The ... ACI 224 for a detailed discussion of cracking in reinforced and nonreinforced concrete slabs.This guide describes how to produce high quality concrete slabs on ground and suspended floors for various ... 360R for slabs on ground, ACI 223 for shrinkage-compensating concrete floors, ACI 421.1R for suspended floors, ANSI/ASCE 3-91 for structural design ofcomposite slabs, and ANSI/ASCE 9-91 for construction...
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guide for the use of preplaced aggregate concrete for structural and mass concrete applications
... Reinforced Concrete Guide for Formwork for Concrete Specification for Concrete Aggregate Test Method for Obtaining and Testing DrilledCores and Sawed Beams of Concrete Specification for Portland CementSpecification ... Mixtures for Preplaced- Aggregate Concrete Test Method for Flow of Grout for Preplaced- Aggregate Concrete (Flow Cone Method)Test Method for Expansion and Bleeding of Freshly Mixed Grouts for Preplaced- Aggregate Concrete ... requirements limit the amount of fine aggregate (sand) that can be used in the grout. For PA concrete for use in beams, columns, and thin sections, the ratio of cementitious material to sand304.1R-8ACI...
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guide for the use of volumetric-measuring and continuous-mixing concrete equipment (reapproved 1997)
... measurement and continuous mixinghave a long history of producing concrete. For manyyears the concept of “one shovel of cement, two shov-els of sand, and three shovels of stone” was used toproduce concrete. ... (Gravimetric) of Concrete C 143 Standard Test Method for Slump of Portland Cement Concrete C 173 Standard Test Method for Air Content of Freshly Mixed Concrete by the Volu-metric MethodC 231 Standard ... 304.6R-91 Guide for the Use of Volumetric-Measuring and Continuous-Mixing Concrete Equipment (Reapproved 1997) reported by ACI Committee 304Arthur C. CheffThomas...
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guide for evaluation of concrete structures prior to rehabilitation
... l000STRUCTURAL PERFORMACE l0 lUNIFORMITY OF CONCRETE 0 0 l . l . EVALUATION OF STRUCTURES PRIOR TO REHABILITATION Table 6.2 -Evaluation of properties of reinforcing steelPROPERTIES ... used for evaluation of concrete structures prior to rehabilitation. The procedures should be used as a guide and are not in-tended to replace judgment by the engineer responsible for the evaluation. ... of both concrete and reinforcing steel, and adequatebond of concrete to steel. If the combination of thesethree characteristics is not adequate, the concrete isunacceptable. For concrete to...
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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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guide for the design, construction, (reapproved 1999) and repair of ferrocement
... here and represent the current state of the art. The procedure used on a particular projectshould be based on the experience and the ingenuity of the builders and the judgment of the engineer. DESIGN, ... cause, and likelihood of the cause still being active. The method of repair will be dictated by the type of damage, the availability of special equipment and repair materials, and the level of skill ... strain of mesh reinforcement is taken as the strain at the intersection of the best straight line fit of the initial portion of the stress-strain curve and the beststraight line fit of the yielded...
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