guide for polymer concrete overlays
guide for concrete highway bridge deck construction
... particular attention for bridge decks are as follows: a. The concrete production and delivery equipment should be reviewed at the preconstruction plan- CONCRETE HIGHWAY BRIDGE DECK CONSTRUCTION 345R-9 b. c . d . e . TABLE ... Reinforcement i BOTTOM OF SLAB Fig. 2.4 Typical dimensions and tolerance for location of reinforcing steel in concrete bridge decks Fig. 2.5...
Ngày tải lên: 24/10/2014, 15:47
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 ACI Committee 226 for more information regarding these mate- rials. The...
Ngày tải lên: 24/10/2014, 15:47
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-21 Plain Concrete Pavement,” Highway Research Re...
Ngày tải lên: 24/10/2014, 15:47
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 in a 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 Fir...
Ngày tải lên: 24/10/2014, 15:47
guide for measuring, mixing, transporting, and placing concrete
... methods of placing concrete. 304R-1 7MEASURING, MIXING, TRANSPORTING, AND PLACING CONCRETE 5.2—Planning A basic requirement in all concrete handling is that both quality 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-16 ACI COMMIT...
Ngày tải lên: 24/10/2014, 15:47
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 con...
Ngày tải lên: 24/10/2014, 15:47
guide for the use of silica fume in concrete
... products, specifications. CONTENTS Chapter 1—Introduction, p. 234R-2 1.1—General 1.2—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 mainly caused by the strict enforcement...
Ngày tải lên: 24/10/2014, 15:48
guide for use of normal weight and heavyweight aggregates in concrete
... 221R-1 This 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...
Ngày tải lên: 24/10/2014, 15:48
guide for precast concrete wall panels
... Editorial subcommittee This 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, site precas...
Ngày tải lên: 24/10/2014, 17:26
guide for the analysis, design, and construction of concrete-pedestal water towers
... 371R-5 3.1—General 3.2—Concrete 3.3—Formwork 3.4—Reinforcement 3.5—Concrete finishes 3.6—Tolerances 3.7—Foundations 3.8—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-PED...
Ngày tải lên: 24/10/2014, 17:26
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 Committee 211 Olga Alonzo* William ... of the cement and fly ash. In Tables 4.3.5(a) and (b), recommended maximum w/(c+p) are given as a function of maximum-size aggregate HIGH-STRENGTH CONCRETE WITH PORTLAND...
Ngày tải lên: 24/10/2014, 17:40
guide for selecting proportions for no-slump concrete
... slump). Fig. 3.3—Volume correction factors for dry-rodded coarse aggregate for concrete of different consistencies. GUIDE FOR SELECTING PROPORTIONS FOR NO-SLUMP CONCRETE 211.3R-7 plastic consistencies, ... added at mixer 141 100 GUIDE FOR SELECTING PROPORTIONS FOR NO-SLUMP CONCRETE 211.3R-9 resulting from maintaining a constant consistency, is considered norm...
Ngày tải lên: 24/10/2014, 17:40
guide for submittal of concrete proportions
... all of these aggregate properties influ- ence the proportioning of the concrete mixture, they should be submitted to support the proposed mixture proportions. GUIDE FOR SUBMITTAL OF CONCRETE PROPORTIONS ... selection of the appropriate f cr ′ . Submittal of concrete mixture proportions should con- tain the method used to select f cr ′ for each class of concre...
Ngày tải lên: 24/10/2014, 17:40
guide for the design and construction of fixed offshore concrete structures
... B.11- Other factors criteria PREFACE 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 th...
Ngày tải lên: 24/10/2014, 17:40
guide for polymer concrete overlays
... be evaluated for each type of damage to the overlay. Com- POLYMER CONCRETE OVERLAYS 548.5R-17 Table 6.1-Typical test methods for polymer concrete overlays Material Binder Aggregate Polymer concrete Overlay ... Strength of Concrete 503R Use of Epoxy Compounds with Concrete 503.5R Guide for the Selection of Polymer Adhesives with Concrete 546.1R Guide for...
Ngày tải lên: 24/10/2014, 22:11