Environmental screening and relevant accelerated tests for products in an outdoor ground environment

2003 ◽  
Author(s):  
S.D. Bhakta ◽  
S. Higgins
Keyword(s):  
Accelerated Tests

Corrosion Process of Incoloy-800 in High Pressure and Temperature Aqueous Environment

2008 ◽  
Vol 59 (9) ◽  
Author(s):  
Dumitra Lucan ◽  
Manuela Fulger ◽  
Gheorghita Jinescu
Keyword(s):  
Corrosion Behaviour ◽  
Gravimetric Method ◽  
Corrosion Process ◽  
Aqueous Environment ◽  
Accelerated Tests ◽  
Steam Generators ◽  
High Pressure And Temperature ◽  
Eds Analysis ◽  
Incoloy 800 ◽  
Steam Generator Tubes

The Steam Generators (SG), equipment that ensures the connection between the primary and secondary circuits, creates several safety problems during operation, mainly due to corrosion and mechanical damages. To provide information about the corrosion behaviour of the structural materials from CANDU SG under normal and abnormal conditions of operation and to identify the failure types produced by the corrosion were performed corrosion experiments consisting in chemical accelerated tests, static autoclaving and electrochemical methods. The gravimetric method, optical metallographic microscopy, XRD and EDS analysis, as well as electrochemical measurements have been used to evaluate the corrosion behavior of the steam generator tubes material (Incoloy-800).

Changes in antioxidant activity and free radical scavenging potential of rosemary extract and tocopherols in isolated rapeseed oil triacylglycerols during accelerated tests

2005 ◽  
Vol 93 (2) ◽  
pp. 227-235 ◽  
Author(s):  
Malgorzata Nogala-Kalucka ◽  
Jozef Korczak ◽  
Małgorzata Dratwia ◽  
Eleonora Lampart-Szczapa ◽  
Aleksander Siger ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Rapeseed Oil ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Rosemary Extract ◽  
Accelerated Tests

Thermomechanical reliability characterization of a handheld product in accelerated tests and use environment

2010 ◽  
Vol 50 (12) ◽  
pp. 1994-2000 ◽  
Author(s):  
J.S. Karppinen ◽  
J. Li ◽  
T.T. Mattila ◽  
Mervi Paulasto-Kröckel
Keyword(s):  
Accelerated Tests ◽  
Thermomechanical Reliability

scholarly journals Accelerated test methods for evaluating alkali-silica reactivity of recycled concrete aggregates

2021 ◽  
Author(s):  
Robert C Johnson
Keyword(s):  
Binding Capacity ◽  
Recycled Concrete ◽  
Test Duration ◽  
Accelerated Tests ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates ◽  
Alkali Silica Reactivity ◽  
Accelerated Mortar Bar Test ◽  
Bar Test ◽  
Mortar Bar

This thesis reports the findings of a study carried out to determine the effectiveness of Accelerated Tests in evaluating the Alkali-Silica Reactivity of Recycled Concrete Aggregates. The study evaluated the variability of the Accelerated Mortar Bar Test due to test variables as well as the single and multi-laboratory variation. The variability of the Concrete Microbar Test due to test variables and the correlation to results from Accelerated Mortar Bar and Concrete Prism Test results were also evaluated. The tests were corroborated by comparing the porosity, permeability and alkali binding capacity of samples tested by the accelerated tests. It was found that the Accelerated Mortar Bar Test provides acceptable results when the test variables, such as crushing methods and absorption values, are carried out and evaluated properly. The Concrete Microbar Test was found to underestimate the expansion of reactive aggregates. However, the same test was found to provide good correlation to the expansion results of Concrete Prisms incorporating Supplementary Cementing Materials when the test duration was increased.

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