کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6712818 | 1428728 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Carbonation resistance of cements containing supplementary cementitious materials and its relation to various parameters of concrete
ترجمه فارسی عنوان
مقاومت به کربن سیمان حاوی مواد سیمانی تکمیلی و ارتباط آن با پارامترهای مختلف بتن
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کلمات کلیدی
کربناته سریع مواد سیمان تکمیلی، قلیایی بودن را رزرو کنید رطوبت نسبی، استحکام فشاری،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
In this study, the carbonation resistance of cements containing supplementary cementitious materials (SCMs) exposed to carbon dioxide concentrations of 1% and 3%, relative humidity of 40%, 60% and 80% and temperature of 27â¯Â°C and 45â¯Â°C at two different water to cement ratio is investigated. The carbonation performance of concrete samples placed in accelerated conditions is compared to that of concrete samples exposed to natural conditions. The comparison of carbonation coefficients of concrete exposed to different environmental conditions indicates that the rate of carbonation is primarily governed by the extent of clinker replacement, relative humidity and water to cement ratio. Concrete mixes with slag showed better carbonation resistance as compared to mixes containing other SCMs. No specific correlation can be observed between the carbonation coefficients and physical parameters of concrete (compressive strength and porosity), however, a reasonable correlation is observed between carbonation coefficients and chemical parameters (Total alkali content, reserve alkalinity and pH). An empirical equation is developed to estimate the carbonation depth for different cements for wide range of exposure conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 178, 30 July 2018, Pages 219-232
Journal: Construction and Building Materials - Volume 178, 30 July 2018, Pages 219-232
نویسندگان
Vineet Shah, Shashank Bishnoi,