2013 Fiscal Year Final Research Report
Basic research of laser incising to develop fire resistive glulam and cross laminated timber made of Japanese cedar
| Project/Area Number |
22248019
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Wood science
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
HATTORI Nobuaki 東京農工大学, (連合)農学研究科(研究院), 教授 (90115915)
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| Co-Investigator(Kenkyū-buntansha) |
HARADA Toshiro 独立行政法人森林総合研究所, 構造利用研究領域, 領域長 (50353818)
ANDO Keisuke 東京農工大学, (連合)農学研究科(研究院), 講師 (70262227)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | CO2レーザ / インサイジング / スギ / ポリリン酸 / 耐火集成材 / 耐火CLT / 耐火木造建築物 / 防火地域 |
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| Research Abstract |
The results are follows; a pinhole whose diameter is less than 2 mm could be made in lamina of Japanese cedar by the slab CO2 laser with the 1 kW power and 0.1 sec pulse duration. The fire retardant could be impregnated evenly with less variation to Sugi lamina through pinholes by laser. The glulam consists of three zones such as load-bearing part (untreated glulam), fire-dieout part impregnated fire-retardant chemicals and surface part (untreated lamina) could pass the one-hour fireproof performance test and got the certificate by the government. The first building whose main column and beam were consisted of the one-hour fire proof glulam was completed in fire protection district of downtown Tokyo in May
2013.
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Research Products
(33 results)
