Prestressing Concrete with CFRP Composites for Sustainability and Corrosion-Free Applications
نویسندگان
چکیده
منابع مشابه
NDT of free formed CFRP composites with laser ultrasonics
In recent years the use of carbon fiber reinforced plastics (CFRP) in manufacturing of aircraft and auto cars has increased continually. These materials are of interest because of their excellent mechanical properties like high strength and stiffness at low weight. In consequence of the development of new production processes machine-made CFRP components became more complex in design and shape....
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The application of prestressed concrete technology in civil structures is relatively recent. Therefore, the existing prestressed concrete members in such structure are still relatively young, and the corrosion and the concrete deterioration problems associated with this type of concrete members have became clearly evident only in the early 1980s. Damage during service, frequently appearing afte...
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Acoustic emission (AE) is studied to monitor stress corrosion cracking (SCC) of prestressing strands. This nondestructive method seems particularly recommended because it has the capacity to realize a real time and a remote detection of active defects. In this study corrosion mechanisms are generated in an accelerated way. A particular attention has been made on hydrogen embrittlement process b...
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To improve the corrosion protection provided to prestressing strands, anti-bleed grouts are used to fill voids in post-tensioning ducts that result from bleeding and shrinkage of older portland cement grouts. Environmental differences caused by exposing the strands to dissimilar grouts, however, have the potential to cause rapid corrosion. Portland cement grout, gypsum grout, and four commercia...
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Some Problems on High Strength Concrete for Prestressing by Kanji YAMAZAKI (Research Laboratory of Nihon Cement Co., Ltd., Tokyo) This paper describes some problems on high strength concrete studied in our laboratory in recent years. Summary of this report is as follows: (1) In order to make high strength concrete for prestressing, it is necessary to lower the water-cement ratio. But, in the ca...
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ژورنال
عنوان ژورنال: MATEC Web of Conferences
سال: 2018
ISSN: 2261-236X
DOI: 10.1051/matecconf/201714901010