The traveler participated in the fourth meeting of RILEM 100-TSL, Techniques for Service Life Prediction,'' and The Fifth International Conference on Durability of Building Materials and Components.'' In addition, the traveler met with staff members at Taywood Engineering Ltd., Electricite de France, and AEA Technology. The meeting pertained to performance of concrete materials in nuclear power plant structures, time variation of concrete material properties, methods for evaluating concrete structures, and modeling to predict the effects of degradation factors on concrete materials. As many of the concrete structures in general civil engineering applications as well as nuclear power plant applications in Europe are aging, there is increasing emphasis on assessing the durability of these structures. Information was provided of direct application to the Structural Aging Program which would not have been available without these visits. Of equal, or possibly more importance, was the individual contacts established at the organizations visited. Each organization was extremely interested in both the approach and scope of the Structural Aging Program and requested that they be informed of progress. The initial steps were taken to cooperate with several of these researchers and this should help the Structural Aging Program keep abreast of related European activities. Inmore » summary, information obtained during this trip will benefit the ongoing Structural Aging Program by informing Oak Ridge National Laboratory (ORNL) of the extensive European research programs addressing the durability of concrete structures, and also by forming and strengthening acquaintances with counterparts in other countries, thus enhancing the basis for possible international cooperation.« less

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Durability of building materials and components)

In this paper, blister formation on a lined fluoropolymer-steel substrate's exposure to water and hydrochloride acid solution at different temperatures and temperature gradients was studied. The higher the temperature gradient between the lining and the substrate, the faster the blister will form. In the absence of a temperature gradient, the temperature also affects the formation of blisters. The higher the working environment temperature, the faster the blistering will appear. Even so, the role of temperature gradients in promoting blistering is far greater than that of temperature. The concentration of HCl solution also affects the formation of blisters. Blistering occurs more slowly in high-concentration solutions and water is determined to be the main cause of blister formation.

https://pubs.acs.org/doi/pdf/10.1021/acsomega.0c00418

Chau Van Dinh

Papers

Blistering behavior of a Lined Fluoropolymer-steel Substrate on Exposure to a HCl Acid Aqueous Environment.