Scipediacontent at 07:02, 6 October 2020

2020-10-06T07:02:59Z

Scipediacontent: Scipediacontent moved page Draft Content 437235182 to Su et al 2020a

2020-09-21T11:24:34Z

Scipediacontent moved page Draft Content 437235182 to Su et al 2020a

Scipediacontent: Created page with "== Abstract == This paper is a report on the investigation results of the Former Shime Mining Office Vertical Derrick, which was built in 1943 and was 75 years old at the tim..."

2020-09-21T11:24:32Z

Created page with "== Abstract == This paper is a report on the investigation results of the Former Shime Mining Office Vertical Derrick, which was built in 1943 and was 75 years old at the tim..."

New page

== Abstract ==

This paper is a report on the investigation results of the Former Shime Mining Office Vertical Derrick, which was built in 1943 and was 75 years old at the time of the investigation. The building suffered from serious deterioration including rebar corrosion, which led to large area of concrete spalling. In this report, aggregation data of concrete spalling has been presented along with the investigation results of cover thickness. According to the investigation results, concrete spalling occurred in places where cover thickness was less than 25 mm. And According to the aggregation data, concrete spalling flakes increased by approximately 200 pieces per year, with the average size of 10 cm in diameter. Also, a possible relation between concrete spalling and rainfall was observed during the investigation. Equations using the proportion of wet area affected by rainfall to estimate the area of spalling are proposed, although the value of empirical coefficientαneeds further discussion, including collecting data from other buildings where spalling occurs.

== Full document ==
<pdf>Media:Draft_Content_437235182p986.pdf</pdf>

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← Older revision	Revision as of 11:24, 21 September 2020
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Su et al 2020a - Revision history

Scipediacontent at 07:02, 6 October 2020

Scipediacontent: Scipediacontent moved page Draft Content 437235182 to Su et al 2020a

Scipediacontent: Created page with "== Abstract == This paper is a report on the investigation results of the Former Shime Mining Office Vertical Derrick, which was built in 1943 and was 75 years old at the tim..."