Regulations 28, 29 and 30 training, inspection and reports these require. Ucl discovery is ucls open access repository, showcasing and providing access to ucl research outputs from all ucl disciplines. Assessment of residual strength based on estimated. Explains the principles governing the formation of cracks in concrete and defines the various types of nonstructural crack which may occur. Face consultants limited concrete societys technical. Posttensioned pt concrete floors are now widely used in the uk, particularly for highrise buildings. Ha lifted the ban on internal posttensioninggpp g except precast segmental. Draft cen technical report, principles of the equivalent durability procedure. Tech report physics 22 semesterend tech report the technical report, in written format, is quite different from the lab summaries you prepare for other experiments. Concept designs prepared assuming detailed design would be to bs 8110 may be continued through to detailed design using eurocode 2.
Concrete society technical report 34 concrete industrial ground. In 2003, the third edition of concrete society technical report 34 1 was published. Riskbased approach for prevention and management of drug. Magazine of concrete research covers every aspect of concrete manufacture and behaviour from performance and evaluation of constituent materials to mix design, testing, durability, structural analysis and composite construction. Technical center for architectural engineering, information simplified, inc, center for building. An updated edition of technical report 34, which provides guidance on the design and construction of industrial ground floors, has been issued by the concrete society march 2003. If you would like to receive this information, please enter your email address and we will subscribe you to our enews list.
Report on torsion in structural concrete reported by joint aciasce committee 445 daniel a. Tr 68 assessment, design and repair of firedamaged. A more detailed guide to the design of pt floors can be found in the concrete society s technical report 43 tr43. A more detailed guide to the design of pt floors can be found in the concrete societys technical report 43 tr43. Each property has differing allowable values that are set out in table c1 and some properties are variable to cater for varying fork lift truck dimensions. For more than 30 years, the concrete society has been publishing technical reports and advice notes to serve the needs of clients, architects, engineers, specifiers, suppliers, contractors and users of concrete. Fabricreinforced concrete ground slabs and concrete society. Pdf advanced construction technology 4th edition by roy. The productivity and resultant floor quality obtained using someros patented laser screed equipment has therefore become specified for the construction of many large warehouse and retail flat floors. The information and advice contained in the sheets is based on experience and knowledge of the concrete society s technical staff. Technical report 34 third edition concrete industrial.
Section, city and guilds of london institute, 76 portland place. Assessment of residual strength based on estimated temperature of postheated rc columns been exposed to more severe conditions as compared to near the floor 7. The resulting design guidance, technical report no. Tr68 assessment and repair of firedamaged concrete. Visual inspection of concrete structure by kaushal kishore materials engineer, roorkee visual inspection is one of the most versatile and powerful of the ndt methods, and it is. It brought together guidance for all types of industrial ground slab in one publication and also introduced a new design method for fabricreinforced groundbearing slabs. A technical committee of construct, the concrete structures group, prepared this speci. Two subsequent revisions, aci 347r88 and aci 347r94, were committee reports because of changes in the ac i policy on the style and format.
Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete. Tr 68 assessment, design and repair of firedamaged concrete. Technical systems have a short form catalogue covering many. The illustrations are based upon a range of call scenarios. Fabricreinforced concrete ground slabs and concrete society technical report tr343alasdair n beal, thomasons. Smd provides noteworthy contribution as part of the editing group involved with producing the newly publicised concrete society technical report no. Concrete society working party concrete society working party assessment and repair of firedamaged concrete structures. Concrete society report tr34 concrete industrial ground floors third edition 2003 important errata notification would you please amend your copy of tr34 to correct the following.
Aashto subcommittee on materials technical section 3a hydraulic cement and lime stateline, nevada august 5, 20 meeting minutes i. Cement and concrete research vol 68, pages 1222 february. Selwood 68 advanced construction technology figure 2. The rates which are given in table 2 are based on section 4. The chair, mark felag ri, called the annual meeting of technical section 3a, hydraulic. Tr 69 repair of concrete structures with reference to bs. Assessment and repair of firedamaged concrete structures. Preface this is the fourth edition of concrete society technical report 34. A procedure for carrying out the detailed design of flat slabs is shown in table 1 below. There are a number of onsite and laboratorybased techniques available to aid in the diagnosis of reinforced concrete condition. Concrete society technical report 11 tr 11 concrete core testing for strength. An update and background to concrete society report tr47 second edition 26 june 2002 gordon clark.
In this case, where the dm2 classification is applied and the forklift is of the dimensions stated above, the limits. The factors which govern these cracks are described so that diagnoses may be made and procedures for control suggested. The concrete centre regularly contacts registered users with email newsletters, event invitations and updates on new guidance. For further magazine articles please try using our magazine article search please login here to gain access to the practice sheets. Plain formed concrete finishes there are many circumstances in which a plain formed finish is appropriate for concrete surfaces of buildings and civil engineering structures. Permissible limits on properties ii and iv in freemovement areas. Subsequent revisions were aci 347 68 and aci 34778.
Technical report 34 is a guide to the design and construction of industrial concrete ground floors, published by the concrete society. Concrete has good fire resistance and concrete structures are capable of being repaired after a fire. The emphasis of this report is on the methods of assessment and the. Plain fanfold paper with extra fine perforation clean edge. Concrete is a composite material of a cementbased matrix, which is produced by mixing water and a binder, usually made of hydraulic cement or cement and additions and particles of aggregate. How closely can we determine the watercement ratio of. Plain formed concrete finishes tr52 the concrete society. The flooring standards of technical report 34 have been readily accepted in the uk, and in more and more countries in europe.
Fabricreinforced concrete ground slabs and concrete. Deepdyve is the easiest way to get instant access to the academic journals you need. The society are neither responsible for the opinions nor statements expressed by the authors. Pdf assessment of fire damage in concrete structures. Tr 67 movement, restraint and cracking in concrete structures.
Deepdyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Technical report tr71 dvd readonly disk file system specifications february 1998 this technical report specifies a profile of standard ecma167 titled volume and file structure for writeonce and rewritable media using nonsequential recording for information interchange for implementations of the standard on dvd readonly disks conforming to the ecmarom standard. These are published by the concrete society in concrete. A direct method, utilizing optical fluorescence microscopy, has been standardized by a nordic organization. Aashto subcommittee on materials technical section 3a.
Guidance on assessment is given in concrete society technical report 68, assessment, design and repair of firedamaged concrete structures. Sustainable access to safe, efficacious, highquality products every time a patient needs them is just as important as the tremendous therapeutic advances that have transformed the lives and survival of. Design guidance for stengthening concrete structures. The concrete society midlands region is holding a free technical seminar of presentations based on the new technical report 52. Construction limited, concrete society technical report 51 guidance on the use of stainless steel reinforcement published by concrete society uk, bs 6744. Assessment of firedamaged structures the concrete society. Riverside house 4 meadows business park station approach blackwater camberley gu17 9ab uk. This article provides information on how to scheme a pt slab and how the use of posttensioning affects the rest of the structure. The value of a warehouse floor raising flooring standards. Joao almeida convener, instituto superior tecnico, portugal.
The information and advice contained in the sheets is based on experience and knowledge of the concrete societys technical staff. This bulletin n 31 was approved as an fib technical report in march 2004 by fib task group 1. Thickness guidance is based on a limit state format. The repair process of the deans brook viaduct supports the confidence expressed in the tr68 report regarding the resilience of prestressed concrete structures in the face of fire damage. Ced and concrete society, including ha carbonation chlorides. Dm1, dm2 and dm3, are designed to test a vna installation in a manner suited to the specific individual model of mhe that is to be utilised. Technical information the report complies with the eurocodes and is the industry standard for concrete floors in the uk. Face consultants limited concrete societys technical report. Generally, a determination of the watercement ratio wc of hardened concrete is not very useful, but there exist indirect methods for that purpose.
Published by concrete society rfl t tb t ti tr3637 reflec ts curren bes practice includes specification and bill items progress tr73 you need to delete bits to suit procurement route available now in all good bookshops summary available now in all good bookshops. Cbdg 26 june 2002cbdg 26 june 2002 last update to cbdg conference 9 years ago a long journey started in 1991, 20 years ago. Concrete is a composite material of a cementbased matrix, which is produced by mixing water and a binder, usually made of hydraulic cement or. Technical report tr68 scenarios for computer supported telecommunications applications csta phase ii december 1994 the intention of this technical report is to illustrate how the services offered by csta phase ii are intended to be used by application developers and switch manufacturers.
Looks at the measures that can be taken to prevent reinforcement corrosion, current codes of practice, methods of modelling the deterioration process, improvements through material selection, improvements in surface resistance and tolerance and how to avoid corrosion. Durable posttensioned concrete structures tr72 concrete. Responsibility for drafting the report was undertaken jointly by halcrow group, the concrete society and university college london. Tr 11 was published in 1976 and updated by an addendum in 1987. The aim of this paper is to briefly describe the mechanics of producing the report and summarise its scope and salient features. Please login here to gain access to the advice sheets. It has been the subject of much debate among members of the societys materials standing committee as to its efficacy, particularly in. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Papers appear ahead of print below as soon as they are ready to be published. Construction technology we work with leading authors to develop. Section 4 surface regularity free movement table 4.
Concrete industrial ground floors tr34 is recognised globally as a leading publication giving guidance on many of the key aspects of concrete industrial ground floors. Journal officiel du lundi 23 aout 1993 assemblee nationale archives. Concrete society publications are subject to revision from time to time and readers should ensure that they in possession of the latest version. Concrete advice sheets these are produced and published by the concrete society. Property ii limit mm property iv limit mm floor classification floor use 95% 100% 95% 100% fm 1 where very high standards of flatness and. Concrete technical report 75 smd provides noteworthy contribution as part of the editing group involved with producing the newly publicised concrete society technical report no. Contents previous page is blank list of figures viii list of tables ix members of the project committees x.
This assumes that the slab thickness has previously been determined during conceptual design. Castin anchors and their supporting structural elements shall be designed to sustain. May 16, 2003 an updated edition of technical report 34, which provides guidance on the design and construction of industrial ground floors, has been issued by the concrete society march 2003. Your tech report should be in the style of a scientific research publication. Volume 68 pages 1222 february 2015 download full issue.
130 1511 379 1295 264 1421 1183 1164 286 775 1449 737 1336 960 83 1254 380 1054 318 871 1423 1294 238 29 594 282 963 530 979 1104 608 234 613 1351 1269 90 1113