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Self Consolidating Concrete For Precast Prestressed Concrete Bridge Elements
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Book Synopsis Self-consolidating Concrete for Precast, Prestressed Concrete Bridge Elements by : Kamal Khayat
Download or read book Self-consolidating Concrete for Precast, Prestressed Concrete Bridge Elements written by Kamal Khayat and published by Transportation Research Board. This book was released on 2009 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Download or read book NCHRP Report 628 written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book I cantici del Brevario romano written by and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Self-consolidating Concrete for Bridge Structure Applications by : Alen Horta
Download or read book Evaluation of Self-consolidating Concrete for Bridge Structure Applications written by Alen Horta and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to determine whether precast prestressed bridge elements with congested reinforcement could be cast using self-consolidating concrete (SCC) without vibration and yet comply with all parameters of strength, no honeycombing, and void-free surface finish. Eight wall panels and eight BT-72 13-ft long girder sections were fabricated in two precast plants. A qualitative and quantitative evaluation of the surface finish, and homogeneity of the concrete throughout the specimens was performed. Strength, creep, shrinkage and chloride permeability of the SCC field mixes were investigated. Good quality SCC mixes were produced for the walls and the BT-72 girder sections, which completely filled the specimens without the need of internal or external vibration, and resulted in a superior surface finish and a homogenous distribution of the aggregate throughout the section.
Book Synopsis Implementation of Self-Consolidating Concrete (SCC) for Prestressed Concrete Girders by :
Download or read book Implementation of Self-Consolidating Concrete (SCC) for Prestressed Concrete Girders written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-Consolidating Concrete (SCC) was first developed in Japan almost 15 years ago, and it was not until the late 1990's that the U.S precast concrete industry applied the technology to architectural and structural building elements. This study describes the first experience of using SCC for prestressed concrete bridge girders in North Carolina. A multiple-span bridge is currently under construction in eastern North Carolina using one hundred thirty AASHTO Type III girders, each 54.8 ft (16.7 m) long (NCDOT Project 8.1170903). Three girders from one production line of five girders were selected for evaluation. Two of the girders were cast with SCC and one with conventional concrete as the control. The plastic and hardened properties of both the SCC and the conventional concrete were monitored and measured. The fresh properties of SCC included unit weight, air content, slump flow, Visual Stability Index (VSI), and passing ability as measured by J-ring and L-box. Hardened concrete tests on SCC and conventional concrete included compressive strength, static elastic modulus, elastic modulus based on resonance frequency ('dynamic' modulus) at different ages, along with creep and shrinkage. The prestressing force in the girders was monitored by load cells. Finally, the three girders were tested in flexure up to the design service load to determine and compare their load-deformation characteristics. In general, two AASTHO Type III girders were successfully cast without any vibration using SCC, and exhibited virtually identical load-deflection relationships up to the design service load than that of the conventional concrete girder. SCC showed lower elastic modulus after strength adjustment, and higher creep and shrinkage than conventional concrete.
Book Synopsis Self-consolidating Concrete for Precast Prestressed Applications by :
Download or read book Self-consolidating Concrete for Precast Prestressed Applications written by and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers in this special publication cover the following general topics related to self-consolidating concrete in prestressed applications: 1) mixture proportioning; 2) mechanical properties; 3) time-dependent deformations; 4) flexural and shear behavior; 5) bond behavior; 6) prestress losses; and 7) the structural behavior of full-scale precast prestressed elements made with SCC.
Book Synopsis Self-consolidating Concrete for Precast Structural Applications by : Eric P. Koehler
Download or read book Self-consolidating Concrete for Precast Structural Applications written by Eric P. Koehler and published by . This book was released on 2007 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Self-Compacting Concrete: Materials, Properties and Applications by : Rafat Siddique
Download or read book Self-Compacting Concrete: Materials, Properties and Applications written by Rafat Siddique and published by Woodhead Publishing. This book was released on 2019-11-19 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-Compacting Concrete: Materials, Properties and Applications presents the latest research on various aspects of self-compacting concrete, including test methods, rheology, strength and durability properties, SCC properties at elevated temperature, SC manufacturing with the use of SCMs, recycled aggregates and industrial by-products. Written by an international group of contributors who are closely associated with the development of self-compacting concrete, the book explores the main differences between SCC and normal concrete in terms of raw materials, fresh properties and hardened properties. Other topics discussed include the structure and practical applications of fiber reinforced SCC. Researchers and experienced engineers will find this reference to be a systematic source to SCC with its accounting of the latest breakthroughs in the field and discussions of SCC constructability, structural integrity, improved flows into complex forms, and superior strength and durability. Offers a systematic and comprehensive source of information on the latest developments in SCC technology Includes mix design procedures, tests standards, rheology, strength and durability properties Explores the properties and practical applications of SCC
Book Synopsis Shear Behavior of High Strength Self-consolidating Concrete in Nebraska University Bridge Girders by : Alexander Michael Griffin
Download or read book Shear Behavior of High Strength Self-consolidating Concrete in Nebraska University Bridge Girders written by Alexander Michael Griffin and published by . This book was released on 2014 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As the nation's infrastructure continues to age, advanced concrete technologies have been developed to both reduce a structure's costs and increase its life expectancy. Since the early 1990's, self-consolidating concrete (SCC) has been one of these technologies. Many, however, have been reluctant to implement SCC in highway girders due to the mixture constituents. One of these concerns is the reduced content and size of the coarse aggregate. These differences in the concrete potentially hinder SCC's mechanical properties and shear resistance. Additionally, for high strength concretes (HSC) with weaker aggregates, shear cracks tend to propagate through the coarse aggregate, reducing the aggregate interlock component of the shear resistance. This study aimed at assessing the web-shear strength both with and without web reinforcement of two precast-prestressed Nebraska University (NU) 53 girders fabricated with high strength self-consolidating concrete (HS-SCC). The results were compared to the ACI 318 (2011) and AASHTO LRFD (2012) code estimates, and a finite element model (FEM) package, Response 2000. ATENA Engineering, a finite element analysis (FEA) program, was also used to evaluate the qualitative results, specifically crack patterns and the effect of the coarse aggregate content and size. A prestressed concrete database was also constructed to assess the effect of the reduced coarse aggregate content on the shear capacity of HS-SCC in prestressed concrete members. The mechanical properties of the HS-SCC mix were also tested and compared to relevant empirical equations. The HS-SCC mix investigated in this study proves to be a viable cost-saving alternative for bridge superstructure elements"--Abstract, page iii.
Book Synopsis Design, Production and Placement of Self-Consolidating Concrete by : Kamal Henri Khayat
Download or read book Design, Production and Placement of Self-Consolidating Concrete written by Kamal Henri Khayat and published by Springer Science & Business Media. This book was released on 2010-08-12 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dear Colleagues, We are pleased to organize the Sixth International RILEM Symposium on SCC and the Fourth North-American Conference on the Design and Use of SCC, held on Sept 26-29, 2010 in Montreal, Quebec, Canada. The RILEM series of symposia started in 1999 in Stockholm, followed by Tokyo in 2001, Reykjavik in 2003, Chicago in 2005, and Ghent in 2007 with a steadily increasing number of papers, participants, and interest from across the globe. Due to the growing success of SCC, regional conferences have been organized, such as the North-American Conference on the Design and Use of SCC held in Chicago in 2002, 2005, and 2008; the International Symposium on Design, Performance and Use of SCC held nd in Changsa, China in 2005 and in Beijing, China in 2009; as well as the 2 International Conference on Advances in Concrete Technology in the Middle East: SCC held in Abu Dhabi in 2009. It can be concluded that these regional Conferences and Symposia were highly successful and reached a far more international audience than anticipated. Nearly 100 papers were submitted for these proceedings from which the International Scientific Committee selected 37 contributions covering a wide range of timely and original subjects from around the world. We would like to acknowledge the input of the International Scientific Committee for providing critical input to guarantee high quality of these peer-reviewed proceedings. We invite you to explore a wealth of information in the electronic proceedings.
Book Synopsis Self-Consolidating Concrete by : Joseph Daczko
Download or read book Self-Consolidating Concrete written by Joseph Daczko and published by CRC Press. This book was released on 2012-03-06 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A very interesting and useful book for all the different practitioners in the concrete industry. Each necessary step is thoroughly dealt with and explained in a nice and pedagogic way." Peter Billberg, Swedish Cement and Concrete Research Institute (CBI)"Quite comprehensive and with a narrative style at the practitioner level." Lloyd Keller, Direc
Book Synopsis Interim Guidelines for the Use of Self-consolidating Concrete in Precast/Prestressed Concrete Institute Member Plants by : Precast/Prestressed Concrete Institute
Download or read book Interim Guidelines for the Use of Self-consolidating Concrete in Precast/Prestressed Concrete Institute Member Plants written by Precast/Prestressed Concrete Institute and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Beams and Pier Caps With Self-Consolidating Concrete at Nimmo Parkway by : Celik Ozyildirim
Download or read book Bridge Beams and Pier Caps With Self-Consolidating Concrete at Nimmo Parkway written by Celik Ozyildirim and published by . This book was released on 2016 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-consolidating concrete (SCC) has a very high level of workability as it easily fills formwork under the influence of its own mass without any additional consolidation energy. SCC can be placed in narrow and congested areas, fit the geometry of the element, and provide smooth surfaces. The purpose of this study was to investigate innovative, cost-effective, and aesthetically pleasing SCC mixtures for use in bridge beams and pier caps. The Virginia Department of Transportation used SCC in two bridges located south of Virginia Beach on the same project and in close proximity to each other. The bridges carry Nimmo Parkway traffic over Hunt Club Tributary and West Neck Creek. The bridge over West Neck Creek has 18 spans, and the bridge over Hunt Club Tributary has 2 spans. Precast SCC was used in the 220 beams on the two bridges, and cast-in-place SCC was used in three pier caps on one of the bridges. SCC mixtures were prepared at a prestressed concrete plant for the beams and a ready mixed concrete plant for cast-in-place applications. Cast-in-place SCC was delivered to the site by ready mixed concrete trucks. SCC for the bridge beams had high flow rates and attained high strength and low permeability. The surface of the beams had minimal blemishes. The cast-in-place SCC also had high strength and low permeability. In one of the four loads used in the first pier cap, marginal stability and lower but satisfactory strength were obtained. On the second and third day of the placements, SCC of uniform quality was obtained. Thus, compared to conventional mixtures, SCC is expected to have greater material-related costs because of changes in ingredients, particularly the addition of more and higher dosages of chemical admixtures. However, the ease of placement, speed of construction, and reduced labor requirements are expected to result in overall cost savings in structures with SCC. Further, the lack of problems with consolidation is expected to lead to improved surface appearance, strength, and durability; an increased service life; and lower life cycle costs. The study recommends that SCC be an option for precast and cast-in-place applications, and the Virginia Department of Transportation will include this option in its new 2016 Road and Bridge Specifications.
Book Synopsis Mechanical Properties of Self-Compacting Concrete by : Kamal H. Khayat
Download or read book Mechanical Properties of Self-Compacting Concrete written by Kamal H. Khayat and published by Springer Science & Business Media. This book was released on 2014-02-05 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: The State-of-the-Art Report of RILEM Technical Committee 228-MPS on Mechanical properties of Self-Compacting Concrete (SCC) summarizes an extensive body of information related to mechanical properties and mechanical behaviour of SCC. Due attention is given to the fact that the composition of SCC varies significantly. A wide range of mechanical properties are considered, including compressive strength, stress-strain relationship, tensile and flexural strengths, modulus of elasticity, shear strength, effect of elevated temperature, such as fire spalling and residual properties after fire, in-situ properties, creep, shrinkage, bond properties and structural behaviour. A chapter on fibre-reinforced SCC is included, as well as a chapter on specialty SCC, such as light-weight SCC, heavy-weight SCC, preplaced aggregate SCC, special fibre reinforced SCC and underwater concrete.
Book Synopsis Self-consolidating Concrete for Prestressed Applications--phase I by : Samuel D. Keske
Download or read book Self-consolidating Concrete for Prestressed Applications--phase I written by Samuel D. Keske and published by . This book was released on 2015 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bond Strength of Self-consolidating Concrete for Prestressed Concrete Applications by : Amgad F. Girgis
Download or read book Bond Strength of Self-consolidating Concrete for Prestressed Concrete Applications written by Amgad F. Girgis and published by . This book was released on 2004 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Self-consolidating Concrete for Cast-in-place Bridge Components by : George Morcous
Download or read book Self-consolidating Concrete for Cast-in-place Bridge Components written by George Morcous and published by . This book was released on 2016 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: "National Cooperative Highway Research Program (NCHRP) Report 819: Self Consolidating Concrete for Cast in Place Bridge Components presents recommended guidelines for the use of self-consolidating concrete (SCC) in cast in place highway bridge components. These guidelines address the selection of constituent materials, proportioning of concrete mixtures, testing methods, fresh and hardened concrete properties, production and quality control issues, and other aspects of SCC. The report also presents proposed changes to the AASHTO LRFD Bridge Design and Construction Specifications to address use of SCC for cast in place highway bridge components. The information contained in the report will guide materials and bridge engineers in evaluating, selecting, and specifying SCC mixtures for use in cast in place concrete bridge components, thereby facilitating construction, improving the working environment and safety, and reducing cost."--Publisher's description
