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Age Factor on Estimating of Strength of Concrete in Structures by Rebound Hammer

Autor: Shoji Amasaki

Publikováno v: Concrete Research and Technology. 23:111-117

The relationship between the rebound number and strength of concrete varies as a function of the age of concrete, but the effect of age can generally be ignored for concrete between 3 days and 3 months old. However, for older concrete, it may be poss

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https://doi.org/10.3151/crt.23.111

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Topic for Concrete Strength Presumption using Rebound Hammer-Comparison between Rebound Numbers using Various Hammers and Proposal of Requesting Method for Relationship between Rebound Numbers and Compressive Strength

Publikováno v: Concrete Journal. 48:23-30

本報告は，リバウンドハンマーによる強度推定に関する話題を提供するものである。リバウンドハンマーの中からN型，P型シュミットハンマー，新型シュミットハンマー「シルバーシュ�

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https://doi.org/10.3151/coj.48.12_23

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DISCUSSION ON ACCURACY OF CONCRETE STRENGTH ESTIMATION AND HARDNESS MEASUREMENT BY REBOUND HAMMER

Autor: Hideaki Taniguchi, Hiroshi Watanabe, Hirotaka Kawano, Manabu Fujita

Publikováno v: Doboku Gakkai Ronbunshu. 2004:199-210

本研究は, テストハンマーの反発度からコンクリートの圧縮強度を推定する際の問題点を明らかにするため, テストハンマーの動作機構や反発度の物理的な意味合いを踏まえた検討を行っ

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https://doi.org/10.2208/jscej.2004.767_199

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Effects of Finish Timing on Surface Properties of Concrete Slab

Autor: SAKAMOTO, Taiga, SAWAMOTO, Takehiro, MORIHAMA, Kazumasa, Masanori, HIGUCHI, DAI, Akiyoshi

Publikováno v: ものつくり大学紀要. (10):21-27

The durability of concrete slab is apt to be influenced by finish timing of the concrete surface. Therefore,the finish timing which is considered the bleeding and the setting time of the concrete slab is very important.However, it is not obvious that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::c5f7d7b71f9859ff65e7488cd8a0cb66
https://iot.repo.nii.ac.jp/records/227

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A Study on Effects of Mix Proportions and Curing Methods on Air Permeability of Concrete Pillar Members

Autor: SAITO, Masato, SAWAMOTO, Takehiro, SHITAMA, Koichiro, HIGUCHI, Masanori

Publikováno v: ものつくり大学紀要. (9):6-11

The properties of concrete surface which influence the durability of concrete structures will be greatly affected on mix proportions and curing conditions. In this study, the effects of nominal strength, type of cement, demolding timing and curing me

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https://iot.repo.nii.ac.jp/records/214

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コンクリート柱部材の表層品質に及ぼす養生方法および使用環境の影響

Autor: SAITO, Masato, SAWAMOTO, Takehiro, SHITAMA, Koichiro, HIGUCHI, Masanori

Publikováno v: ものつくり大学紀要. (8):1-8

The properties of concrete surface which influence the durability of concrete structures will be greatly affected on curing conditions and use environments. In this study, the effects of type of cement, demolding timing, curing method and use environ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::1aa7a247410295a3176b254a1849cc77
https://iot.repo.nii.ac.jp/records/206

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International Capital Flows and Convergence of Unemployment Rates across Nations : A Theoretical Analysys

Publikováno v: 経済論集. 104:85-110

本論文はSolow(1956)による新古典派成長モデルとShapiro and Stiglitz(1984)型効率賃金制約を統合した二国経済モデルを提示し、二国間の失業率の差が失業給付率と貯蓄率(割引因子)の差によって�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::c169782790c58e8ced333ef1be3b9b85
http://opac.daito.ac.jp/repo/repository/daito/49820/

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Collection of URL measurement data in 2011 fiscal year at the Horonobe Underground Research Laboratory Project

Publikováno v: JAEA-Data/Code 2012-029. :1-132

日本原子力研究開発機構は、幌延深地層研究計画に基づき、地下施設の建設とともに第2段階の調査研究を実施している。本調査研究では、計測データを当該切羽や後続施工箇所の設計・

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https://jopss.jaea.go.jp/search/servlet/search?5038957

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Collection of URL measurement data in 2010 fiscal year at the Horonobe Underground Research Laboratory Project

Publikováno v: JAEA-Data/Code 2012-019. :1-137

幌延深地層研究計画では、換気立坑,東立坑及び140m, 250m水平坑道の掘削とともに、第2段階の調査研究を実施している。本調査研究では、計測データを当該切羽や後続施工箇所の設計・施�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::49f522c00a112f1e7fb0a8236102c082
https://jopss.jaea.go.jp/search/servlet/search?5033961

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