This European Standard specifies a method for the determination of the compressive strength of test
specimens of hardened concrete
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The main purpose of this document is to synthesize current technical knowledge related to the use of roller-compacted concrete (RCC). It deals with practices recognized by the industry in Quebec. Also discussed are potential problems and how to avoid them. In this regard, a number of cautionary statements have been included throughout the document on opics such as the use of different types of materials used in proportioning RCC mixes, RCC production and its use.
This manual only covers roller-compacted concrete pavements. It does not deal with the construction of dams or other mass concrete structures due to their technological differences with respect to materials selection, mix proportioning, properties, and placement.
This manual only covers roller-compacted concrete pavements. It does not deal with the construction of dams or other mass concrete structures due to their technological differences with respect to materials selection, mix proportioning, properties, and placement.
This document is intended for those interested in designing and producing roller-compacted concrete pavements for industrial, agricultural, and/or urban applications. It has been designed more specifically for testing laboratories, engineers, owners, contractors, producers / suppliers of concrete, and technical consultants involved in the concrete industry.
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COMPRESSION TESTING OF CONCRETE: CYLINDERS VS. CUBES
Author: David J.ELWELL ,KONGKANG FU | Size: 1 MB | Format:PDF | Publisher: TRANSPORTATION RESEARCH AND DEVELOPMENT BUREAU | Year: 1995 | pages: 30 | ISBN: 12232-0869
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, or have design guideline of Wrap-Around Gusset plate for horizontal bracing with large cutout please share
Design of wrap around steel gusset plates
by Dowswell, Ronald Scott, PhD, THE UNIVERSITY OF ALABAMA AT BIRMINGHAM, 2005, 0 pages; 3201151
Abstract: Gusset plates are used in steel buildings to connect bracing members to other structural members in the lateral force resisting system. Horizontal bracing is commonly used to resist lateral loads in industrial structures and in commercial buildings where floor and roof diaphragms cannot carry the loads. Wrap-around gusset plates are L-shaped plates that are used where an opening is required at the corner of the plate. This typically occurs at horizontal bracing where the gusset plate is cut out around a column. The purposes of this research were to gain a better understanding of the behavior of wrap-around gusset plates, identify potential failure modes, and formulate a design method for these connections. Ten experimental specimens were tested in compression and five were tested in tension. All of the specimens were modeled using the finite element method with material and geometric nonlinearities. The experiments and finite element models indicated that wrap-around gusset plates are subject to limit states common to flexural members. The results were used to formulate a design method for wrap-around gusset plates, which is based on a cantilever beam model. The accuracy of the proposed design method was verified by comparing the calculated capacities to experimental and finite element results. The accuracy of the proposed method is similar to that of the current design procedure for standard gusset plates without cutouts.
Anyone can downlaod this for me from ASCE site
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Finite Element Modeling of Wrap-Around Gusset Plates in Tension by Bo Dowswell, Robert Whyte, Jim Davidson, and Fouad Fouad
Document type: Conference Proceeding Paper
Part of: 2006 Structural Engineering and Public Safety
Abstract: Gusset plates are used in steel buildings to connect bracing members to other structural members in the lateral force resisting system. Horizontal bracing is commonly used to resist lateral loads in industrial structures and in commercial buildings where floor and roof diaphragms cannot carry the loads. Wrap-around gusset plates are L-shaped plates that are used where an opening is required at the comer of the plate. This typically occurs at horizontal bracing where the gusset plate is cut out around a column. Finite element models were used to determine the behavior of wrap-around gusset plates. The plates were modeled using material and geometric nonlinearities. Five different gusset plates were modeled with geometry and material properties matching the experimental specimens of Dowswell. All of the models were loaded in tension. The loads from the finite element models were compared to the experimental loads.
Geopolymers: Structures, Pricessing, Properties and Industrial Applications
Author: Edited by J L Provis and J S J van Deventer | Size: 18.15 MB | Format:PDF | Publisher: Woodhead Publishing Ltd | Year: 2009 | pages: 464
Edited by J L Provis and J S J van Deventer, University of Melbourne, Australia
- discusses the synthesis and characterisation of geopolymers with chapters covering fly ash chemistry and inorganic polymer cements
- assesses the application and commercialisation of geopolymers with particular focus on applications in waste management
- reviews the latest research on and applications of these highly important materials
A geopolymer is a solid aluminosilicate material usually formed by alkali hydroxide or alkali silicate activation of a solid precursor such as coal fly ash, calcined clay and/or metallurgical slag. Today the primary application of geopolymer technology is in the development of reduced-CO2 construction materials as an alternative to Portland-based cements. Geopolymers: structure, processing, properties and industrial applications reviews the latest research on and applications of these highly important materials.
Part one discusses the synthesis and characterisation of geopolymers with chapters on topics such as fly ash chemistry and inorganic polymer cements, geopolymer precursor design, nanostructure/microstructure of metakaolin and fly ash geopolymers, and geopolymer synthesis kinetics. Part two reviews the manufacture and properties of geopolymers including accelerated ageing of geopolymers, chemical durability, engineering properties of geopolymer concrete, producing fire and heat-resistant geopolymers, utilisation of mining wastes and thermal properties of geopolymers. Part three covers applications of geopolymers with coverage of topics such as commercialisation of geopolymers for construction, as well as applications in waste management.
With its distinguished editors and international team of contributors, Geopolymers: structure, processing, properties and industrial applications is a standard reference for scientists and engineers in industry and the academic sector, including practitioners in the cement and concrete industry as well as those involved in waste reduction and disposal.
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EN 13481-1:2002 Railway applications - Track - Performance requirements for fastening systems - Part 1: Definitions, and its amendmend EN 13481-1:2002/A1:2006
EN 13481-2:2002 Railway applications - Track - Performance requirements for fastening systems - Part 2: Fastening systems for concrete sleepers, and its amendmend EN 13481-2:2002/A1:2006
EN 13481-3:2002 Railway applications - Track - Performance requirements for fastening systems - Part 3: Fastening systems for wood sleepers, and EN 13481-3:2002/A1:2006
EN 13481-5:2002 Railway applications - Track - Performance requirements for fastening systems - Part 5: Fastening systems for slab track, and EN 13481-5:2002/A1:2006
EN 13481-8:2006 Railway applications - Track - Performance requirements for fastening systems - Part 8: Fastening systems for track with heavy axle loads
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