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- 正法院 陽三
- 建設省近畿地建営繕部監督課
書誌事項
- タイトル別名
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- ON THE RESULT OF TEST AND THE BETWEEN DAY VARIATION IN AVERAGE COMPRESSIVE STRENGTH OF FIELD MIXED CONCRETE MADE UNDER MIDDLE & SMALL SCALE CONDITIONS IN OSAKA (1958〜1961)
- チュウショウ ゲンバ ノ コンクリート キョウド ノ シケン セイセキ ト ヒカン ヘンドウ ニ ツイテ
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抄録
This report is on the results of test made for four years (1958〜1961) in connection with middle & smale buildings constructed under the inspection and guidance of the Building & Repair Division of Kinki Regional Construction Bureao: the within day varition, the between day variation, the ratio of eligibility under required strength F_0, etc., in the compressive strength of concrete above referred to have been investigated and in view of the results thus obtained a study has been made of J.A.S.S. 5 regulations on guality control of concrete. The within day variations standard deuiation (σ_ω) of the compressive strength of concrete are smaller in each class than J.A.S.S. 5 values, that is, class A-10kg/cm^2, class B-22 kg/cm^2. The between day variation's standard deviation (σ_♭) of the compressive strength of concrete are: class A-25kg/cm^2, class B-45kg/cm^2, that is, in class A σ_♭ is nearly the same as J.A.S.S. 5 value, in class B that is 1.3 times as big as J.A.S.S. 5 value, and the ratio of eligibility under required strength F_0 is 50%, and in effecting quality control of concrete J.A.S.S. 5 regulations cannot assure the quality required. From this viewpoint there should be regulations in which the between day variation is fully considered. According to this study the standard deviations in each class are: class A-σ_ω≑10kg/cm^2, σ_♭≑25kg/cm^2, σ_<total>≑27kg/cm^2, class B-σ_ω≑22kg/cm^2, σ_♭≑45kg/cm^2,σ_<Total>≑50kg/cm^2.
収録刊行物
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- 日本建築学会論文報告集
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日本建築学会論文報告集 81 (0), 7-11, 1963
一般社団法人 日本建築学会
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詳細情報 詳細情報について
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- CRID
- 1390001205569791872
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- NII論文ID
- 110006158136
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- NII書誌ID
- AN0018882X
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- ISSN
- 24330027
- 03871185
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- NDL書誌ID
- 9157429
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可