کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6740295 504342 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A long term restrained shrinkage study of concrete slabs on ground
ترجمه فارسی عنوان
مطالعه طولانی مدت انقباضی بتن های بتنی بر روی زمین
کلمات کلیدی
اسلب بر روی زمین، تکان دادن، ترک خوردن، انقباض، خواص ابعادی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
This paper summarizes the results from an experimental study on the behavior of concrete slabs-on-ground in a controlled environment. The test program characterizes the dimensional properties of selected concrete materials, evaluating their performance as real slabs-on-ground in that they are exposed to the controlled environment on the top surface and to the ground moisture on the bottom surface. The concrete mix designs examined included normal-strength portland cement concrete (PCC), high-strength concrete (HSC), concrete using shrinkage reducing admixtures (SRA), and concrete using calcium sulfoaluminate cement (CSA). The data include standard concrete material characterization test results, joint movements, internal relative humidity and temperature over the slab depth. It was found that the concrete using CSA was very stable with no long term shrinkage, cracking or warping, while typical PCC and HSC continued to show crack growth at over 600 days of age. The concrete using SRA had a minor impact at early age and limited impact on long term sectional stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 102, 1 November 2015, Pages 258-265
نویسندگان
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