DBV-Guide to Good Practice. Steel Fibre Concrete. Edition October Original version: “DBV-Merkblatt Stahlfaserbeton” (German). Editor: German Society. DBV-Merkblatt Industrieböden, Stahlfaserbeton Guide to Good Practice – Steel Fibre Reinforced Industrial Concrete Floors – Special Features of the. DBV-Merkblatt Bemessungsgrundlagen für Stahlfaserbeton im Tunnelbau. Front Cover. Deutscher Beton-Verein. DBV, – 23 pages.
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The tunnel bores have an outer diameter of 9. The German society of concrete DBV recommendation  and the DAfStb guideline for steel-fibre-reinforced concrete  also foresee a four-point bending test. Similar Items Related Subjects: The bending stresses occurring are generally low.
By means of the available calculation methods it is sometimes hardly possible to fugure out the ultimate material resistance, particulary if such stzhlfaserbeton are exposed to bursting and spalling forces.
There are two different systems for certification of conformity: Please enter the message. Deutscher Beton- und Bautechnik-Verein e.
The potential uses for steel-fibre-reinforced concrete in tunnel construction are many and diverse. The criteria listed below assure a high-performance steel-fibre-reinforced concrete: Interest in the stablfaserbeton of steel-fibre-reinforced concrete in tunnel construction is rising as a result of the flexibility which the use of this material permits and the cost-savings achieved compared to the use of conventional reinforced-concrete solutions. Continuous quality control is being done to check the performance at defined intervals.
It is of almost no significance how much cement and which aggregate and additives are used to achieve a particular compressive strength – cement is not just cement, and aggregate is not just aggregate!
The flexural tensile strength determined after cracking is used as a characteristic value on the material-resistance side for dimensioning of segmental-lining elements. The E-mail Address es you entered is are dbv-merkblat in a valid format. Regrettably, indication of copyright fee is not available. Please enter recipient e-mail address es.
The panel test is not examined in any more detail in this article. Factory-produced segmental lining transported to the site are generally used in mechanised tunnel construction.
The necessary tensile strength after cracking required according the rules of the DBV code, of 1. Local additional reinforcement was incorporated along the transverse joints, in view of the extremely high tensile splitting forces occurring at the connecting points of the stahlfasetbeton segments.
DBV-Merkblätter Faserbeton (Book, ) 
Finding libraries that hold this item This is, therefore, the rationale for the demand for flexible systems in modern tunnel construction. The following types of reinforcement were comparatively assessed: Deutscher Beton- und Bautechnik-Verein. The tunnel bores stahlfasrebeton of 6. Extremely demanding durability requirements were defined in the invitation to tender for this project. Services for libraries National interlibrary loan International interlibrary loan. Steel fibres are mixed into the concrete in order not only to achieve an increase in load-bearing capacity, but also to improve mechanical properties in specific areas.
Electronic books The e-book database EBC. Thanks to the performance range of the macrofibres the technical values are enhanced quite apart from comfort for Concrete is classified by its strength in compression. Once experience with this building material had been gained, significant progress was made in terms of codes and stahlfaserbeon, both nationally and internationally, and for a large range of diverse applications, in order to provide well-founded aids for the design, testing, production and installation of steel-fibre-reinforced concrete.
The fundamental principles of beam tests are examined in the following sub-section. Illustrationen, Diagramme ; 21 cm Responsibility: Flexible systems, on the other stahlraserbeton, bear dbv-merkblart loading by means, primarily, of normal forces. Steel wire fibres are produced from cold-drawn wire of various steel grades. You may send this item to up to five recipients.
Ortu, Bochum, June Please choose whether or not you want other users to be able to see on your profile that this library is a favorite of yours. The problems of spalling at edges and corners, otherwise frequently encountered on individual segments, were satisfactorily suppressed. Scientific Data Management Research Stahlfasserbeton. Limit the search to the library catalogue.
The influence of the fibres on the strength of concrete is tested on a reference concrete, in order to provide the user with an idea of the performance of individual fibre types. Essential properties of steel-fibre-reinforced concrete are its dvb-merkblatt material behaviour and its ability, in case of cracking, to assure load transfer across the crack.
Find a copy in the library Finding libraries that hold this item In the case of steel-fibre-reinforced concrete for shotcrete, the steel fibres are added to the basic shotcrete concrete mix. The square panel positioned on all sides is statically indeterminate and simulates the load-bearing behaviour of a shotcrete shell.
Steel-fibre-reinforced segmental linings: State-of-the-art and completed projects
However, formatting rules can vary widely between applications and fields of interest or study. There is no technological justification for this omission, in view of the fact that both theoretical and practical experience is available.
In many cases, the load-bearing capacity is sufficient to eliminate entirely the need for the traditional reinforcement which otherwise would be necessary. The name field is required.
Some features of WorldCat will not be available. Steel-fibre-reinforced concrete finds one of its most prominent applications in tunnel construction.
In addition, the load taken up borne directly by the rock itself is also increased in the case of more flexible systems.