The 2015 Aluminum Design Manual is essential for all professionals who work with aluminum in structural applications, this comprehensive, up-to-date resource includes: Specification for Aluminum Structures: (US units) The 2015 Specification for Aluminum Structures is the first unified allowable strength design and load and resistance factor design aluminum Specification. It provides rules for determining the strength of aluminum structural components and minimum strengths for wrought, cast, and welded aluminum alloys and aluminum fasteners; Commentary: (US units) discusses the provisions in the Specification for Aluminum Structures and provides references; Design Guide: ( US units) addresses structural design issues not included in the Specification for Aluminum Structures, including diaphragms, adhesive bonded joints, aluminum composite material, extrusion design, corrosion prevention, fire protection, sustainability, and design references for aluminum structural components in automobiles, bridges, rail cars, ships, pressure vessels, pipe, and storage tanks; Material Properties: (US and SI units) includes alloy and temper designation systems for wrought and cast aluminum alloys; comparative characteristics of wrought alloys; foreign alloy designations correlated with US alloy designations; and typical mechanical and physical properties, including thermal expansion, electrical conductivity, and density ; Section Properties: (US units) lists dimensions and section properties for aluminum channels, I-beams, angles, tees, zees, square and rectangular tube, round tube, pipe, and roofing and siding, as well as sheet metal and wire gauges; Design Aids: (US units) provides buckling constants, allowable stress tables for various alloys, allowable load tables for channels and I-beams in bending, tread plate, roofing and siding; fastener strengths, minimum bend radii for aluminum sheet and plate, wire, and rod, design stresses for groove and fillet welds, and beam formulas;
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This Specification describes bonding fresh concrete, hardened concrete, steel, and other materials as covered in Section 2.3 to hardened concrete with a multi-component epoxy adhesive as defined for this purpose in ASTM C881/C881M. Included are controls for adhesive labeling; storage; handling; surface evaluation and preparation; mixing and application; and inspection, safety, quality control, and testing.
The long-term performance of concrete repair intended to address corrosion of embedded reinforcing steel is influenced by the depth of repair and the condition of the substrate concrete surrounding the repair area. The extent of concrete removal should be adjusted in accordance with the degree and nature of distress affecting the member or structure, while taking into account the concrete condition, the structural design, and the applied loads.
This TechNote discusses the implications of improper procedures for curing test specimens at the jobsite that result in strength test results that are not reliable for acceptance of concrete.
Keywords:
contractor; engineer of record (EOR); initial curing; responsibilities; test specimens; testing agency.
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Building information modeling (BIM) presents structural information in the form of three-dimensional (3-D) graphical representations of elements such as beams, columns, and slabs. This information may be further associated with metadata (nongraphical information) such as compressive strength, reinforcement ratio, and maximum aggregate size. It is not necessarily possible to review a modeled object and understand its accuracy or intention. Viewers of models tend to assume designs are more complete than they may actually be, partially due to highly detailed graphics. Does this object represent 10, 30, or 80% of the final design?
Keywords:
beams; building information modeling; cast-in-place; columns; level of development; slabs.
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This Specification covers epoxy slurry (ES) polymer overlay for bridge and parking garage decks. Type ES polymer overlay incorporates a low-modulus epoxy binder, fillers, and selected aggregate to produce a flexible, skid-resistant, and low-permeability overlay. The overlay may be used for both new construction and rehabilitation of existing structures. The overlay is placed by applying the mixed epoxy binder and filler to the surface and broadcasting aggregate. This Specification includes requirements for epoxy resin, fillers, aggregates, storage and handling, surface preparation, surface profile, mixing, placement, quality control, and quality assurance.
This document provides a guide for owners, contractors, designers, and testing, specifying, and inspection organizations engaged in the application of shotcrete for underground support. The guide provides general information for the selection of constituent materials, and methods to proportion shotcrete. Typical methods of batching, mixing, and handling of proportioned shotcrete materials are detailed along with shotcrete placement methods and equipment.
The purpose of this document is to provide a guide to the protocol for testing and reporting of data for cementitious repair materials. It does not address all the issues associated with material selection. It is the responsibility of the user of this document to determine the suitability of the repair material before use.
Keywords:
data sheet protocol; material characteristics; material properties; packaging; repair materials; test methods; user guide.
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This report provides a technical overview of alkali-activated cement (AAC) history; chemistry; and mechanical, physical, and durability properties. It also highlights successful case study applications and current technical challenges.
Keywords:
alkali-activated cements (AACs); alternative cements; geopolymers
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