DSpace DSpace 日本語
 

AIT Associated Repository of Academic Resources >
A.研究報告 >
A1 愛知工業大学研究報告 >
3.愛知工業大学研究報告 .B(1976-2007) >
33号 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/1066

Title: コンクリート塊のコンクリート用骨材としての利用に関する研究
Other Titles: コンクリートカイ ノ コンクリートヨウ コツザイ トシテノ リヨウ ニカンスル ケンキュウ
Research on the Utilization of Demolished Concrete Debris as Concrete Aggregate
Authors: 久保田, 浩靖
森野, 奎二
KUBOTA, Hiroyasu
MORINO, Keiji
Issue Date: 31-Mar-1998
Publisher: 愛知工業大学
Abstract: This study is aimed at clarifying basic properties of concrete using recycled aggregate obtained by crushing from demolished concrete. The concrete waste occurred from concrete struc-tures in Aichi prefecture was used as the material for producing recycled aggregate with a maxi-mum size of 20mm. The demolished concrete was crushed below 40mm by a jaw crusher and not polished in order to do aggregate. Therefore, demolished concrete debris (recycled aggregates) contain impurities (asphalt, and others), and the large amounts of cement paste or mortar adhere to its surface. The concrete made with the recycled fine and coarse aggregate was compared with the concrete used mountain pit sands and sandstone crushed stone aggregates. Aggregates in concrete were replaced the recycled coarse aggregate with sandstone crushed-stone aggregate of 0,30,60 and 100 percent. The concrete by use of the recycled coarse aggregate of 30% had the same good workability and strength as that of natural aggregates concrete. The study also clarified low strength and Young's modulus at 28 days of age, low neutralized depth, high ratios of length change after drying (RH 60%) for 54 weeks. Those results differed by mix proportion from 45 to 65% in water cement ratio.
URI: http://hdl.handle.net/11133/1066
Appears in Collections:33号

Files in This Item:

File Description SizeFormat
紀要33号B(P145-152).pdf1.08 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback