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Selection on complex quality indicator of the quantitative chemical analysis procedures for determining the chloride-ion in concrete and reinforced concrete structures
https://doi.org/10.32446/0368-1025it.2022-8-68-74
Abstract
The problem of the rational selection of measurement procedure for determining the chloride-ion in concrete and reinforced concrete structures, the content of which in concrete affects the rate of rebar corrosion, is considered. A review of standardized and validated measurement procedures for determining the chloride-ion in concrete and reinforced concrete structures is given. The results of a comparative analysis of measurement procedures for construction industry based on argentometric, phototurbidimetric and potentiometric (ionometric) methods are presented on the basis of criteria “Purpose and scope of the measurement procedure”, “Analysis method”, “Measuring instruments and reagents”, “Preparation for analysis”, “Analysis procedure”, “Processing the measurement results”. An order of rational measurement procedure selection in construction companies on the basis of complex quality index (cost price) calculation is proposed. Application of a measurement procedure based on the argentometric method (for mass fraction of chloride-ion in concrete from 0.5 %) and a measurement procedure based on the potentiometric method (for mass fraction of chloride-ion in concrete from 0.05 %) with the use of estimated cost price has been argued. This proposed approach to the selection of a rational measurement procedure can be used in assessing the compliance of construction materials with the requirements of norms and regulations, as well as the Technical Regulation on the Safety of Buildings and Structures.
About the Authors
S. A. Mitrofanova
Scientific Research Institute of Transport and Construction Complex;
Academy of Standardization, Metrology and Certification (educational)
Russian Federation
Russian Federation
Svetlana A. Mitrofanova
Moscow
I. V. Muravyeva
National University of Science and Technology “MISIS”
Russian Federation
Russian Federation
Irina V. Muravyeva
Moscow
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Review
For citations:
Mitrofanova S.A., Muravyeva I.V. Selection on complex quality indicator of the quantitative chemical analysis procedures for determining the chloride-ion in concrete and reinforced concrete structures. Izmeritel`naya Tekhnika. 2022;(8):68-74. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-8-68-74
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