EVALUATION OF CHLORIDE PERMEABILITY OF VARIOUS CONCRETES USING RAPID CHLORIDE PERMEABILITY TEST (AASHTO T 277-83)
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چکیده
منابع مشابه
A Virtual Rapid Chloride Permeability Test
The rapid chloride permeability test (RCPT), as it is commonly called, has been in existence for over 20 years and was standardized by ASTM over 15 years ago. The test is used extensively in the concrete industry for assessing concrete quality and is now being included in concrete specification documents. Because the underlying physics of the test are fairly well understood, it is possible to c...
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Methods which can be used to assess the chloride permeability of various types of concrete in a relatively short time are described. An electrical potential from 60-80 volt DC is applied either between a chloride solution ponded on a slab surface and the top of rebar mat, or between two faces at a core taken from a structure. The amount of chloride and sum of the electrical current which passes...
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This study investigated compressive strength, chloride penetration, and freeze-thaw resistance of multiwalled carbon nanotube (MWNT) concrete. More than 100 cylindrical specimens were used to assess test variables during sensitivity observations, including water-cement ratios (0.75, 0.5, and 0.4) and exposure to chemical agents (including gum arabic, propanol, ethanol, sodium polyacrylate, meth...
متن کاملPermeability of Paint Films Towards Chloride Ion
* Estrada Nacional 13 (km 6), Apartado 1008, 4471-909 Maia, Portugal. † LEPAE—Departamento de Engenharia Química, Faculdade de Engenharia, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal. ** Author to whom correspondence should be addressed: +351 22 508 1695, Fax: +351 22 508 1449, email: [email protected]. An apparatus for determining the permeability of paint films towards chloride ion is descr...
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We have previously shown that neonate rabbit tubules have a lower chloride permeability but comparable mannitol permeability compared with adult proximal tubules. The surprising finding of lower chloride permeability in neonate proximals compared with adults impacts net chloride transport in this segment, which reabsorbs 60% of the filtered chloride in adults. However, this maturational differe...
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ژورنال
عنوان ژورنال: Doboku Gakkai Ronbunshu
سال: 1997
ISSN: 0289-7806,1882-7187
DOI: 10.2208/jscej.1997.564_177