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Author: Erik Wayne Farrington Publisher: ISBN: Category : High strength concrete Languages : en Pages : 80
Book Description
This study examines the creep and shrinkage of a high performance concrete having an ultimate compressive strength of 90 MPa. The effects of curing temperature, age at loading, and stress level were examined. The testing process involved two sets of 100-mm-by-600-mm cylindrical specimens cured at different temperatures. For each set of specimens, loads of 6.9, 20.7, and 34.5 MPa were applied at 1, 2, and 28 days. Companion shrinkage specimens were placed in the same environment as were the creep specimens. Strain measurements were taken up to 120 days after casting using a mechanical strain gauge. The recorded data were compared with predictions of creep and shrinkage values made using ACI (American Concrete Institute) Committee 209 procedures. These procedures were found to overestimate the values of creep and shrinkage for the high performance concrete used in this study.
Author: Erik Wayne Farrington Publisher: ISBN: Category : High strength concrete Languages : en Pages : 80
Book Description
This study examines the creep and shrinkage of a high performance concrete having an ultimate compressive strength of 90 MPa. The effects of curing temperature, age at loading, and stress level were examined. The testing process involved two sets of 100-mm-by-600-mm cylindrical specimens cured at different temperatures. For each set of specimens, loads of 6.9, 20.7, and 34.5 MPa were applied at 1, 2, and 28 days. Companion shrinkage specimens were placed in the same environment as were the creep specimens. Strain measurements were taken up to 120 days after casting using a mechanical strain gauge. The recorded data were compared with predictions of creep and shrinkage values made using ACI (American Concrete Institute) Committee 209 procedures. These procedures were found to overestimate the values of creep and shrinkage for the high performance concrete used in this study.
Author: fib Fédération internationale du béton Publisher: fib Fédération internationale du béton ISBN: 2883940827 Category : Technology & Engineering Languages : en Pages : 134
Book Description
High Strength/High Performance Concrete (HSC/HPC) continues to be the object of particular interest and extensive research, and its use in construction is increasing continuously. fib Bulletin 42 summarises the available information on the material behaviour of HSC/HPC, and develops a set of code-type constitutive relations as an extension of CEB-FIP Model Code 1990. Literature on experimental data and international guidelines, standards and recommendations were reviewed, and already-existing constitutive relations and models were evaluated. In addition to a number of material laws chosen and adjusted for this report, some new constitutive relations were developed based on the collected data. The criteria for the choice of the existing relations as well as the development of the new constitutive relations involved their simplicity and operationality (code-type mathematical formulations). Furthermore, they had to be physically sound and if possible describe the behaviour of both high-performance and normal strength concretes by a unique relation. Finally, compliance with the specifications given in the CEB-FIP Model Code 1990 was examined. This State-of-art report is intended for engineers and represents a summary of the relevant knowledge available to and possessed by the members of the Task Group at the time of its drafting.
Author: Tada-aki Tanabe Publisher: CRC Press ISBN: 0203882954 Category : Technology & Engineering Languages : en Pages : 1552
Book Description
CREEP, SHRINKAGE AND DURABILITY MECHANICS OF CONCRETE AND CONCRETE STRUCTURES contains the keynote lectures, technical reports and contributed papers presented at the Eighth International Conference on Creep, Shrinkage and Durability of Concrete and Concrete Structures (CONCREEP8, Ise-shima, Japan, 30 September - 2 October 2008). The topics covered
Author: Edward G. Nawy Publisher: John Wiley & Sons ISBN: 0471385557 Category : Technology & Engineering Languages : en Pages : 468
Book Description
High performance concrete is a key element in virtually all-large construction projects, from tall office and residential buildings to bridges, tunnels and roadways. The fully updated Second Edition helps professionals to understand the performance capabilities of these construction materials when selecting the type of concrete to use for particular projects. The author is one of the worlds acknowledged experts on high performance concrete.
Author: Erik Wayne Farrington
Author: Erik Wayne Farrington
Author: Walter Damian Mesia
Author: Karthikeyan Chockalingam
Author: fib Fédération internationale du béton
Author: Tada-aki Tanabe
Author: Jason C. Flietstra
Author: Edward G. Nawy
Author: Akthem A. Al-Manaseer
Author: Franz-Josef Ulm
Author: Ali Salem Ngab