English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In order to investigate the bonding durability of sugi glulams treated with five wood preservatives (ACQ, E-NCU, CUAZ2, E-NZN, AAC), block shear form specimens were exposed outdoors. We studied relationships between wood preservative, or specimen width, or specimen density, or adhesive resin and bonding durability, respectively, and we discussed the difference between results obtained from outdoor exposure and accelerated aging. We also attempted to correlate the results obtained at accelerated-aging with those at outdoor exposure. It was suggested that outdoor exposure testing was superior to accelerated aging for evaluating the influence of wood preservatives on bonding durability. Investigation of the relationships between specimen width or density, or adhesive resins and bonding durability suggested that the deteriorating mechanism of outdoor exposure was milder than that of accelerated aging, and the influence of specimen width, specimen density, and adhesive resins on bonding durability was less than observed with accelerated aging. Results of wood failure ratio were almost the same as those of accelerated aging, and results of deep wood failure ratio, defined as failed wood portion which could not confirm an adhesive layer, did not show a remarkable increase and differed from the results obtained at accelerated aging. This suggested that deterioration of wood at outdoor exposure was slight. We analyzed the results of outdoor exposure and accelerated aging by adopting three methods, and correlated number of accelerated aging cycles to exposure duration based on a liner regression equation. As a result, in the case of the analysis with cycle number and duration transformed into common logarithms, the calculated exposure duration corresponding to cycle number was nearest the values calculated from experimental values.

Evaluation of Bonding Durability for Wood Preservative Treated Glulam by Accelerated Aging Test and Outdoor Exposure Test II.