کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6717145 1428746 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel approach of introducing crystalline protection material and curing agent in fresh concrete for enhancing hydrophobicity
ترجمه فارسی عنوان
یک رویکرد جدید برای معرفی مواد محافظتی کریستالی و عامل خیساندن در بتن تازه برای افزایش هیدروفوبیت
کلمات کلیدی
بتن تازه، پیاده رو، افزودن بلورین، اشباع، درمان هیدروفوبیک، عامل خیس، شرایط خشک شدن، نفوذپذیری، ضد آب،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
A new line of research to enhance the performance of concrete under adverse (harsh) and normal (air cured) curing conditions is presented. A crystallising hydrophobic admixture and curing agents were added to fresh concrete to improve its resistance against severe environmental conditions. A two-stage approach was pursued by adding the crystallising admixture to fresh concrete followed by curing agents, in a wax and liquid forms, in a separate application process, followed by exposing concrete to normal and adverse curing conditions. Results obtained suggests that protecting concrete with the crystallising admixture followed by applying wax based curing agent improves concrete strength and its resistance to water ingress than concrete cured with the liquid curing agent. When following the crystallising-wax treating system under adverse curing conditions, a more conserved strength was noticed compared to that produced by the crystallising-liquid system. Using the liquid curing agent in concrete with high water to cement ratio (w/c) has increased the cracks in the internal structure, while water permeability has decreased, either under normal curing conditions or adverse conditions. Following this protection-curing system in industry would resolve the problem of applying protection on wet surfaces and increase concrete's resistance to deterioration. A microscopic study of the crystallising material was attained with a Scanning Electron Microscope (SEM) to check crystal growth with time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 160, 30 January 2018, Pages 644-652
نویسندگان
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