Title:
超高強度コンクリートの自己収縮ひずみの予測方法
Document Type and Number:
Japanese Patent JP5777208
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method capable of simply and accurately predicting self-shrinkage strain of super-strength concrete.SOLUTION: This invention provides a method for predicting the self-shrinkage strain of the super-strength concrete, in which the self-shrinkage strain of the super-strength concrete is predicted by using the following formulas (1) to (3). The formula (1) is ε=γ×3070×exp{-7.2×(W/P)}×{1-exp(-a×t}, the formula (2) is a=2.79×exp{-10.1×(W/P)} and the formula (3) is b=0.11×exp{7.92×(W/P)} (in the formulas, εexpresses self-shrinkage strain (×10), γ expresses an experiment constant (0.45), W/P expresses a water/powder ratio (%), and t expresses a material age (day) of the super-strength concrete starting from the setting start time of the concrete.).
Inventors:
Shinpei Maebori
Nakazaki Goshi
Tanimura Mitsuru
Nakazaki Goshi
Tanimura Mitsuru
Application Number:
JP2011170848A
Publication Date:
September 09, 2015
Filing Date:
August 04, 2011
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
G01N33/38; C04B18/14; C04B28/02
Domestic Patent References:
| JP2002048690A | ||||
| JP2009052268A | ||||
| JP2005521858A | ||||
| JP2008239439A |
Foreign References:
| WO2005047891A1 |
Other References:
前堀伸平、他3名,超高強度コンクリートの自己収縮制御に関する検討,プレストレスコンクリートの発展に関するシンポジウム論文集,日本,2010年,19th,Page.353-356
前堀伸平、他2名,収縮低減型高性能減水剤を使用した超高強度コンクリートの自己収縮特性,日本建築学会大会学術講演梗概集A-1材料施工,日本,2011年 7月11日,Vol.2011,Page.495-496
前堀伸平、他2名,収縮低減型高性能減水剤を使用した超高強度コンクリートの自己収縮特性,日本建築学会大会学術講演梗概集A-1材料施工,日本,2011年 7月11日,Vol.2011,Page.495-496
Attorney, Agent or Firm:
Norihiko Arai
Naoyuki Koda
Naoyuki Koda