Title:
METHOD AND DEVICE FOR ESTIMATING SULFURIC ACID CONCENTRATION, METHOD AND DEVICE FOR DESIGNING CONCRETE OR MORTAR, AND MAINTENANCE METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/096117
Kind Code:
A1
Abstract:
A method for estimating a sulfuric acid concentration, comprising soaking a concrete or mortar (hereinafter referred to as a concrete or the like) in sulfuric acid having a definite concentration, preliminarily understanding the correlation between the product of sulfuric acid concentration with soaking time and sulfuric acid-erosion depth of the concrete or the like, placing the concrete or the like, for which the aforesaid correlation has been understood, in an environment to be estimated for a preset period of time, measuring the sulfuric acid-erosion depth in the aforesaid environment, and thus estimating the sulfuric acid concentration of the environment to be estimated based on the erosion depth, preset time and correlation. Based on the aforesaid correlation, moreover, a concrete or the like can be designed or the erosion conditions of a concrete or the like in future in a field environment can be estimated and evaluated.
Inventors:
AYANO, Toshiki (())
綾野 克紀 (())
HOSOTANI, Kazuyoshi (())
綾野 克紀 (())
HOSOTANI, Kazuyoshi (())
Application Number:
JP2010/068958
Publication Date:
August 11, 2011
Filing Date:
October 26, 2010
Export Citation:
Assignee:
LANDES CO., LTD. (630-1, Kaide Maniwa-sh, Okayama 92, 〒7193192, JP)
ランデス株式会社 (〒92 岡山県真庭市開田６３０番地１ Okayama, 〒7193192, JP)
AYANO, Toshiki (())
綾野 克紀 (())
ランデス株式会社 (〒92 岡山県真庭市開田６３０番地１ Okayama, 〒7193192, JP)
AYANO, Toshiki (())
綾野 克紀 (())
International Classes:
G01N31/00; E03F1/00; G01N33/38
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Kasumigaseki Building2-5, Kasumigaseki 3-chom, Chiyoda-ku Tokyo 20, 〒1006020, JP)
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