کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4918394 1428761 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modification of chloride diffusion coefficient of concrete based on the electrical conductivity of pore solution
ترجمه فارسی عنوان
اصلاح ضریب نفوذ کلرید بتن بر اساس هدایت الکتریکی محلول منفی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
To correct the influence of pore solution on the chloride diffusion coefficient and set up a comparable permeability test method with other penetration experiments based on rapid chloride migration (RCM), the influence of supplementary cementitious materials (SCMs), including grounded granulated blast furnace slag (GBFS) and fly ash (FA), on the electrical conductivity of pore solution was investigated. A modification method of chloride diffusion coefficient was proposed based on the relationship between the electrical conductivity of pore solution and chloride diffusion coefficient. It was found that the modified chloride diffusion coefficients of the same mortars with differential solution by replacing the original pore solution with NaOH solution were almost identical. The modified relative chloride diffusion coefficients of concrete with differential SCM were close to the relative water absorption content. Results indicating that the modified chloride diffusion coefficient eliminates the effect of electrical conductivity of pore solution and could reflects transport property of concrete due to the connectivity pore, thus can be used to evaluate the generally permeability of concrete.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 145, 1 August 2017, Pages 361-366
نویسندگان
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