Manual of Bridge Inspection 2010
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An Investigation of High-Performance Self Compacting Concrete Under Flexural Loading
Civil Engineering and Architecture 8(6): 1414-1418, 2020 http://www.hrpub.org DOI: 10.13189/cea.2020.080624 An Investigation of High-Performance Self Compacting Concrete under Flexural Loading Theerthananda M P1,*, P C Srinivasa1, G M Naveen2 1Department of Civil Engineering, Government Engineering College, Kushalnagar, India 2Department of Civil Engineering, Government Engineering College, Chamarjanagar, India Received October 20, 2020; Revised November 25, 2020; Accepted December 30, 2020 Cite This Paper in the following Citation Styles (a): [1] Theerthananda M P, P C Srinivasa, G M Naveen, "An Investigation of High-Performance Self Compacting Concrete under Flexural Loading," Civil Engineering and Architecture, Vol. 8, No. 6, pp. 1414 - 1418, 2020. DOI: 10.13189/cea.2020.080624. (b): Theerthananda M P, P C Srinivasa, G M Naveen (2020). An Investigation of High-Performance Self Compacting Concrete under Flexural Loading. Civil Engineering and Architecture, 8(6), 1414 - 1418. DOI: 10.13189/cea.2020.080624. Copyright©2020 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Abstract To shorten construction period, to assure compaction in the structure especially in confined zones where vibrating compaction is difficult and to eliminate noise due to vibration effective especially at concrete 1. Introduction products plants SCC is developed in practice. Also, SCC is applied to tunnel lining for preventing the cold joint High Performance Self Compacting Concrete (HPSCC) Self-compacting concrete has been used. Currently, the is the one which ability to Flow, good viscosity, main reasons for the employment of self-compacting segregation resistance and passing ability. -
Fiber in Continuously Reinforced Concrete Pavements 6
Technical Report Documentation Page 1. Report No. 2. Government 3. Recipient’s Catalog No. FHWA/TX-07/0-4392-2 Accession No. 4. Title and Subtitle 5. Report Date January 2006; Revised December 2006 Fiber in Continuously Reinforced Concrete Pavements 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Dr. Kevin Folliard, David Sutfin, Ryan Turner, and David P. 0-4392-2 Whitney 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Center for Transportation Research 11. Contract or Grant No. The University of Texas at Austin 0-4392 3208 Red River, Suite 200 Austin, TX 78705-2650 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Texas Department of Transportation Technical Report 9/1/01–8/31/03 Research and Technology Implementation Office 14. Sponsoring Agency Code P.O. Box 5080 Austin, TX 78763-5080 15. Supplementary Notes Project conducted in cooperation with the Federal Highway Administration and the Texas Department of Transportation. Project Title: Use of Fibers in Concrete Pavement 16. Abstract Continuously reinforced concrete pavement (CRCP) is a major form of highway pavement in Texas due to its increase in ride quality, minimal maintenance, and extended service life. However, CRCP may sometimes experience pavement distress that results in early failure, either due to under-design or the use of poor construction materials. Significant effort has been made to improve the performance of some of these materials (e.g. siliceous river gravel) to achieve an acceptable level of performance but has been unable to provide a practical solution. This research study investigates whether fiber reinforcement may solve some of the problems associated with siliceous river gravel, particularly spalling. -
Experimental Investigation on Nano Concrete with Nano Silica and M-Sand
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 03 | Mar 2019 www.irjet.net p-ISSN: 2395-0072 EXPERIMENTAL INVESTIGATION ON NANO CONCRETE WITH NANO SILICA AND M-SAND Mohan Raj.B1, Sugila Devi.G2 1PG Student, Nadar Saraswathi College of Engineering and Technology, Theni, Tamilnadu, India. 2Assistant Professor, Nadar Saraswathi College of Engineering and Technology, Theni, Tamilnadu, India. ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The influence of Nano-Silica on various material is Nano Silica (NS). The advancement made by the properties of concrete is obtained by replacing the cement study of concrete at Nano scale has proved the Nano silica is with various percentages of Nano-Silica. Nano-Silica is used as much better than silica fume used in conventional concrete. a partial replacement for cement in the range of 3%, 3.5%, Now, the researchers are capitalizing on nanotechnology to and 10% for M20 mix. Specimens are casted using Nano-Silica innovate a new generation of concrete materials that concrete. Laboratory tests conducted to determine the overcome the above drawbacks and trying to achieve the compressive strength, split tensile and flexural strength of sustainable concrete structures. Evolution of materials is Nano-Silica concrete at the age of 7, 14 and 28 days. Results need of the day for improved or better performance for indicate that the concrete, by using Nano-Silica powder, was special engineering applications and modifying the bulk able to increase its compressive strength. However, the density state of materials in terms of composition or microstructure is reduce compared to standard mix of concrete. -
To the One Who Loved Me, Died for Me and Has Been Raised
To the One Who loved me, died for me and has been raised. (Bible 2 Corinthians 5:14-15) Acknowledgements In this age, with the next millennium fast approaching, no one can carry out research work alone. Therefore, the author would like to show his appreciation to the many people who assisted with this study. First, I would like to give thanks to my supervisor Dr. P. L. Domone, who helped with this work, gave valuable suggestions and also corrected my written English patiently. I also appreciated Dr. Y. Xu's kind suggestions and encouragement, and both Dr. K. Ozawa and Dr. J.C. Liu supplied useful information concerning this study. I also enjoyed discussing this research work with my junior colleagues: Mr. V. Sheikh, Mr. E.M. Ahmed and Mrs. J. Jin. Furthermore, Mr A. Tucker and Miss H. Kinloch carried out several mixes concerning the early strength of SCC as their final year project under my guidance. The help I received from the technical staff of the Elvery Concrete Technology Laboratory cannot be ignored, especially from Mr. 0. Bourne and Mr. M. Saytch. Furthermore, I would like to acknowledge the scholarship from my government, without which the dream of studying in this country could not have come true, after having spent 12 years teaching. I especially want to give thanks to my family - my mother, my wife Priscilla and May and Boaz for their support. I owe them very much. I also appreciated the care from the saints in the church - it is impossible to list all of them. -
Proposing a New Method Based on Image Analysis to Estimate the Segregation Index of Lightweight Aggregate Concretes
materials Article Proposing a New Method Based on Image Analysis to Estimate the Segregation Index of Lightweight Aggregate Concretes Afonso Miguel Solak 1,2 , Antonio José Tenza-Abril 1 , Francisco Baeza-Brotons 1 and David Benavente 3,* 1 Department of Civil Engineering, University of Alicante, 03080 Alicante, Spain; [email protected] (A.M.S.); [email protected] (A.J.T.-A.); [email protected] (F.B.-B.) 2 CYPE Ingenieros S.A., 03003 Alicante, Spain 3 Department of Earth and Environmental Sciences, University of Alicante, 03080 Alicante, Spain * Correspondence: [email protected] Received: 18 October 2019; Accepted: 1 November 2019; Published: 5 November 2019 Abstract: This work presents five different methods for quantifying the segregation phenomenon in lightweight aggregate concretes (LWAC). The use of LWACs allows greater design flexibility and substantial cost savings, and has a positive impact on the energy consumption of a building. However, these materials are susceptible to aggregate segregation, which causes an irregular distribution of the lightweight aggregates in the mixture and may affect the concrete properties. To quantify this critical process, a new method based on image analysis is proposed and its results are compared to the well-established methods of density and ultrasonic pulse velocity measurement. The results show that the ultrasonic test method presents a lower accuracy than the other studied methods, although it is a nondestructive test, easy to perform, and does not need material characterization. The new methodology via image analysis has a strong correlation with the other methods, it considers information from the complete section of the samples, and it does not need the horizontal cut of the specimens or material characterization. -
(AUTONOMOUS) Dundigal, Hyderabad- 500 043 CONCRETE TECHNOLOGY (ACE010) IARE-R16 B.Tech V SEM
INSTITUTE OF AERONAUTICAL ENGINERRING (AUTONOMOUS) Dundigal, Hyderabad- 500 043 CONCRETE TECHNOLOGY (ACE010) IARE-R16 B.Tech V SEM Prepared by Mr. N. Venkat Rao, Associate Professor Ms.B.Bhavani, Assistant Professor COURSE GOAL • To introduce properties of concrete and it constituent materials and the role of various admixtures in modifying these properties to suit specific requirements, such as ready mix concrete, reinforcement detailing, disaster-resistant construction, and concrete machinery have been treated exhaustively the and also special concrete in addition to the durability maintenance and quality control of concrete structure. COURSE OUTLINE UNIT TITILE CONTENT I CEMENT Portland cement, chemical composition, Hydration, ADMIXTURE Setting of cement, Structure of hydrate cement, Test & on physical properties, Different grades of cement. AGGREGATE Mineral and chemical admixtures, properties, dosage, effects, usage. Classification of aggregate, Particle shape & texture, Bond, strength & other mechanical properties of aggregate, Specific gravity, Bulk density, porosity, adsorption & moisture content of aggregate, Bulking of sand, Deleterious substance in aggregate, Soundness of aggregate, Alkali aggregate reaction, Thermal properties, Sieve analysis, Fineness modulus, Grading curves, Grading of fine & coarse Aggregates, Gap graded aggregate, Maximum aggregate size. COURSE OUTLINE UNIT TITILE CONTENT II FRESH Workability, Factors affecting workability, CONCRETE Measurement of workability by different tests, Setting times of concrete, Effect of time and temperature on workability, Segregation & bleeding, Mixing and vibration of concrete, Steps in manufacture of concrete, Quality of mixing water. COURSE OUTLINE UNIT TITILE CONTENT III HARDENED Water / Cement ratio, Abram’s Law, Gel space ratio, CONCRETE Nature of strength of concrete, Maturity concept, TESTING Strength in tension & compression, Factors affecting OF strength, Relation between compression & tensile HARDENED strength, Curing. -
Arizona Historic Bridge Inventory | Pages 164-191
NPS Form 10-900-a OMB Approval No. 1024-0018 (8-86) United States Department of the Interior National Park Service National Register of Historic Places Continuation Sheet section number G, H page 156 V E H I C U L A R B R I D G E S I N A R I Z O N A Geographic Data: State of Arizona Summary of Identification and Evaluation Methods The Arizona Historic Bridge Inventory, which forms the basis for this Multiple Property Documentation Form [MPDF], is a sequel to an earlier study completed in 1987. The original study employed 1945 as a cut-off date. This study inventories and evaluates all of the pre-1964 vehicular bridges and grade separations currently maintained in ADOT’s Structure Inventory and Appraisal [SI&A] listing. It includes all structures of all struc- tural types in current use on the state, county and city road systems. Additionally it includes bridges on selected federal lands (e.g., National Forests, Davis-Monthan Air Force Base) that have been included in the SI&A list. Generally not included are railroad bridges other than highway underpasses; structures maintained by federal agencies (e.g., National Park Service) other than those included in the SI&A; structures in private ownership; and structures that have been dismantled or permanently closed to vehicular traffic. There are exceptions to this, however, and several abandoned and/or privately owned structures of particular impor- tance have been included at the discretion of the consultant. The bridges included in this Inventory have not been evaluated as parts of larger road structures or historic highway districts, although they are clearly integral parts of larger highway resources. -
Vysoké Učení Technické V Brně Brno University of Technology
VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ BRNO UNIVERSITY OF TECHNOLOGY FAKULTA STAVEBNÍ FACULTY OF CIVIL ENGINEERING ÚSTAV TECHNOLOGIE STAVEBNÍCH HMOT A DÍLCŮ INSTITUTE OF TECHNOLOGY OF BUILDING MATERIALS AND COMPONENTS VLIV VLASTNOSTÍ VSTUPNÍCH MATERIÁLŮ NA KVALITU ARCHITEKTONICKÝCH BETONŮ INFLUENCE OF INPUT MATERIALS FOR QUALITY ARCHITECTURAL CONCRETE DIPLOMOVÁ PRÁCE DIPLOMA THESIS AUTOR PRÁCE Bc. Veronika Ondryášová AUTHOR VEDOUCÍ PRÁCE prof. Ing. RUDOLF HELA, CSc. SUPERVISOR BRNO 2018 1 2 3 Abstrakt Diplomová práce se zaměřuje na problematiku vlivu vlastností vstupních surovin pro výrobu kvalitních povrchů architektonických betonů. V úvodní části je popsána definice architektonického betonu a také výhody a nevýhody jeho realizace. V dalších kapitolách jsou uvedeny charakteristiky, dávkování či chemické složení vstupních materiálů. Kromě návrhu receptury je důležitým parametrem pro vytvoření kvalitního povrchu betonu zhutňování, precizní uložení do bednění a následné ošetřování povrchu. Popsány jsou také jednotlivé druhy architektonických betonů, jejich způsob vyrábění s uvedenými příklady na konkrétních realizovaných stavbách. V praktické části byly navrženy 4 receptury, kde se měnil druh nebo dávkování vstupních surovin. Při tvorbě receptur byl důraz kladen především na minimální segregaci čerstvého betonu a omezení vzniku pórů na povrchu ztvrdlého betonu. Klíčová slova Architektonický beton, vstupní suroviny, bednění, separační prostředky, cement, přísady, pigment. Abstract This diploma thesis focuses on the influence of properties of feedstocks for the production of quality surfaces of architectural concrete. The introductory part describes the definition of architectural concrete with the advantages and disadvantages of its implementation. In the following chapters, the characteristics, the dosage or the chemical composition of the input materials are given. Besides the design of the mixture, important parameters for the creation of a quality surface of concrete are compaction, precise placement in formwork and subsequent treatment of the surface. -
BRIDGE INSPECTION and INTERFEROMETRY by JOSEPH E. KRAJEWSKI a Thesis Submitted to the Faculty of the WORCESTER POLYTECHNIC INST
BRIDGE INSPECTION AND INTERFEROMETRY by JOSEPH E. KRAJEWSKI A Thesis Submitted to the Faculty of the WORCESTER POLYTECHNIC INSTITUTE in partial fulfillment of the requirements for the Degree of Master of Science in Civil Engineering May 2006 APPROVED: Professor Leonard D. Albano, Advisor ________________________________ Professor Cosme Furlong __________________________________________ Professor Malcolm Ray ____________________________________________ Professor Frederick Hart___________________________________________ ABSTRACT With the majority of bridges in the country aging, over capacity and costly to rehabilitate or replace, it is essential that engineers refine their inspection and evaluation techniques. Over the past 130 years the information gathering techniques and methods used by engineers to inspect bridges have changed little. All of the available methods rely on one technique, visual inspection. In addition, over the past 40 years individual bridge inspectors have gone from being information gathers to being solely responsible for the condition rating of bridges they inspect. The reliance on the visual abilities of a single individual to determine the health of a particular bridge has led to inconsistent and sometimes erroneous results. In an effort to provide bridge inspectors and engineers with more reliable inspection and evaluation techniques, this thesis will detail the case for development of a new inspection tool, and the assembly and use of one new tool called Fringe Interferometry. i ACKNOWLEDGMENTS I wish to sincerely thank my advisor, Professor Leonard D. Albano, for his encouragement, suggestions, patience and help in writing this thesis. His willingness to let me go beyond the realm of Civil Engineer and into the far away world of Interferometry (where few if any Civil Engineers have been) is something I will never forget. -
USFWS Bridge Inspection Handbook
A guide to the proper safety inspection and evaluation of vehicular bridges on USFWS facilities U.S. Fish and Wildlife Service BRIDGE Division of Engineering INSPECTION HANDBOOK USFWS Bridge Inspection Handbook BMO/DEN/DBSS/RRB 10/17/2014 Bridge Inspection Handbook Table of Contents 1 INTRODUCTION ..................................................................................................................................... 1 1.1 BACKGROUND ................................................................................................................................... 1 1.2 SCOPE OF HANDBOOK ...................................................................................................................... 1 2 INSPECTION REQUIREMENTS ................................................................................................................ 2 2.1 USFWS RESPONSIBILITIES ................................................................................................................. 2 2.2 BRIDGE INSPECTION TEAM ............................................................................................................... 2 2.3 TYPES OF INSPECTIONS ..................................................................................................................... 3 2.3.1 Initial Inspection .................................................................................................................... 3 2.3.2 Routine Inspection ............................................................................................................... -
Identifying and Preserving Historic Bridges
Appendix B—State Departments of Transportation Alabama Department of Transportation Florida Department of Transportation 1409 Coliseum Boulevard 605 Suwannee Street Montgomery, AL 36130 Tallahassee, FL 32399-0450 (334) 242-6311 (850) 488-8541 (334) 262-8041 (fax) (850) 277-3403 (fax) Alaska Department of Transportation & Public Facilities Georgia Department of Transportation 3132 Channel Drive 2 Capital Square Juneau, AK 99801-7898 Atlanta, GA 30334 (907) 465-3900 (404) 656-5206 (907) 586-8365 (fax) (404) 657-8389 (fax) Internet address: [email protected] Arizona Department of Transportation 206 S. 17th Avenue Hawaii Department of Transportation Phoenix, AZ 85007 869 Punchbowl Street (602) 255-7011 Honolulu, HI 96813-5097 (602) 256-7659 (fax) (808) 587-2150 (808) 587-2167 (fax) Arkansas State Highway and Transportation Department State Highway Department Building Idaho Transportation Department P.O. Box 2261, 10324 Interstate 30 3311 W. State Street Little Rock, AR 72203 P.O. Box 7129 (501) 569-2000 Boise, ID 83707 (501) 569-2400 (fax) (208) 334-8000 (208) 334-3858 (fax) California Department of Transportation 1120 N Street Illinois Department of Transportation P.O. Box 942673 2300 S. Dirksen Parkway Sacramento, CA 94273-0001 Springfield, IL 62764 (916) 654-5266 (217) 782-5597 (217) 782-6828 (fax) Colorado Department of Transportation 4201 East Arkansas Avenue Indiana Department of Transportation Denver, CO 80222 Indiana Government Center North (303) 757-9201 100 North Senate Avenue (303) 757-9149 (fax) Indianapolis, IN 46204-2249 (317) 232-5533 Connecticut Department of Transportation (317) 232-0238 (fax) P.O. Box 317546 / 2800 Berlin Turnpike Newington, CT 06131-7546 Iowa Department of Transportation (860) 594-3000 800 Lincoln Way Ames, IA 50010 Delaware Department of Transportation (515) 239-1101 Bay Road, Route 113, P.O. -
LAKE PONTCHARTRAIN CAUSEWAY HAER LA-21 and SOUTHERN TOLL PLAZA Causeway Boulevard Metairie Jefferson Parish Louisiana
LAKE PONTCHARTRAIN CAUSEWAY HAER LA-21 AND SOUTHERN TOLL PLAZA Causeway Boulevard Metairie Jefferson Parish Louisiana PHOTOGRAPHS COPIES OF COLOR TRANSPARENCIES WRITTEN HISTORICAL AND DESCRIPTIVE DATA HISTORIC AMERICAN ENGINEERING RECORD National Park Service U.S. Department of the Interior 100 Alabama Street, SW Atlanta, Georgia 30303 HISTORIC AMERICAN ENGINEERING RECORD LAKE PONTCHARTRAIN CAUSEWAY AND SOUTHERN TOLL PLAZA HAER LA-21 Page 1 Location: The Lake Pontchartrain Causeway spans Lake Pontchartrain from Causeway Boulevard in Metairie, Jefferson Parish to Highway 190, Mandeville, St. Tammany Parish, Louisiana. The southern Toll Plaza was located at the Jefferson Parish terminus of the Lake Pontchartrain Causeway. The Northern Terminus of the Lake Pontchartrain Causeway is located at 30.365 and -90.094167. The Southern Terminus is located at 30.02 and - 90.153889. This information was acquired using Google Earth imagery. There are no restrictions on the release of this information to the public. USGS Quadrangle maps (7.5 minute series): (north to south) Mandeville, Spanish Fort NE, West of Spanish Fort NE, Indian Beach There are no restrictions on this information. Owner: Greater New Orleans Expressway Commission Present Use: Vehicle Bridge Significance: When completed in 1956, the Lake Pontchartrain Causeway was the world’s longest bridge. This record was broken by completion of the parallel span in 1969. At 23.87 miles long, the Causeway is the world’s longest continuous span over water. The prestressed, pre-cast concrete structural system displays mid-twentieth century technology that typifies modern bridge construction techniques. In addition, the Causeway is significant in the development of the Jefferson and St.