JP5474862B2 - 溶接スラグを利用したコンクリート二次製品 - Google Patents
溶接スラグを利用したコンクリート二次製品 Download PDFInfo
- Publication number
- JP5474862B2 JP5474862B2 JP2011088777A JP2011088777A JP5474862B2 JP 5474862 B2 JP5474862 B2 JP 5474862B2 JP 2011088777 A JP2011088777 A JP 2011088777A JP 2011088777 A JP2011088777 A JP 2011088777A JP 5474862 B2 JP5474862 B2 JP 5474862B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- slag
- aggregate
- test
- compressive strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
鉄溶接スラグを骨材代替として用いたコンクリートについて、圧縮強度試験および溶出試験を行い、その適用性について検討を行った。
鉄溶接スラグを置換率70重量%で混入したコンクリートについて、圧縮強度およびフッ素溶出量に関して所要の性能を満足することが前述した実験により確認された。
図4に、各試験体(No.1:ベース配合、No.2:溶接スラグ粗骨材置換率=60%、No.3:置換率=70%、No.4:置換率=80%)の型枠打設面の表面仕上がり性状を示す。各試験体ともに表面性状に異常はなく、ひび割れも観察されなかった。
図5に、各試験体の引張側底面の最終ひび割れ状況を示す。なお、すべての試験体について、引張鉄筋降伏先行の典型的な曲げ圧縮破壊により終局状態に至った。
コンクリートの圧縮強度試験には、φ100×200mm円柱供試体を各3個ずつ作製し、標準養生材齢14日後に試験に供した。
ステンレス溶接スラグを細骨材代替として用いたコンクリートについて、圧縮強度試験および溶出試験を行い、その適用性について検討を行った。
Claims (1)
- コンクリート全質量に対して20重量%以上の鉄溶接スラグが混入されているコンクリート2次製品であって、前記鉄溶接スラグの粗骨材に対する置換率を50〜90重量%とし、蒸気養生で製造されていて、呼び強度30N/mm 2 を満たしているコンクリート2次製品。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2011088777A JP5474862B2 (ja) | 2011-04-13 | 2011-04-13 | 溶接スラグを利用したコンクリート二次製品 |
Applications Claiming Priority (1)
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JP2011088777A JP5474862B2 (ja) | 2011-04-13 | 2011-04-13 | 溶接スラグを利用したコンクリート二次製品 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012218997A JP2012218997A (ja) | 2012-11-12 |
JP5474862B2 true JP5474862B2 (ja) | 2014-04-16 |
Family
ID=47270904
Family Applications (1)
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JP2011088777A Expired - Fee Related JP5474862B2 (ja) | 2011-04-13 | 2011-04-13 | 溶接スラグを利用したコンクリート二次製品 |
Country Status (1)
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JP (1) | JP5474862B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170129493A (ko) * | 2016-05-17 | 2017-11-27 | 주식회사 선일로에스 | 용접슬래그를 이용하여 제조된 투수 및 고강도 특성의 점토벽돌 및 이의 제조방법 |
-
2011
- 2011-04-13 JP JP2011088777A patent/JP5474862B2/ja not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170129493A (ko) * | 2016-05-17 | 2017-11-27 | 주식회사 선일로에스 | 용접슬래그를 이용하여 제조된 투수 및 고강도 특성의 점토벽돌 및 이의 제조방법 |
KR101864125B1 (ko) | 2016-05-17 | 2018-06-04 | 주식회사 선일로에스 | 용접슬래그를 이용하여 제조된 투수 및 고강도 특성의 점토벽돌 및 이의 제조방법 |
Also Published As
Publication number | Publication date |
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JP2012218997A (ja) | 2012-11-12 |
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