کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6719542 | 503544 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Innovative hybrid curing method for accelerating the strength of high-performance cement paste using microwave heating coupling with low-pressure processing
ترجمه فارسی عنوان
روش ترکیبی نوآورانه برای افزایش سرعت مقاومت به کار با سیمان با کارایی بالا با استفاده از اتصال گرمای مایکروویو با پردازش کم فشار
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کلمات کلیدی
سیمان مواد مایکروویو، در حال پردازش، فشار، خواص،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
In this study, cementitious materials (here defined as a high-performance cement paste produced by mixing Type 1 Portland cement with an effective amount of water) were manufactured in accelerated conditions using microwave-assisted low-pressure processing (i.e., accelerated curing). Based on the concept that the hydration reaction of cementitious materials comprises three main periods-a dormant period, an acceleration period, and a deceleration period-process parameters were determined for the most effective period (acceleration) for producing paste via microwave processing. The time-dependent dielectric characteristics of the cementitious paste and the water-cement ratio by mass influenced the temperature, i.e., caused it to increase, and the properties of the microwave-cured paste. The results show that the use of microwave-assisted low-pressure processing improved the paste's mechanical properties. Specifically, microwave energy can accelerate compressive strength development 15Â min after the completion of microwave-assisted low-pressure curing. With a delay time of 60Â min, microwave energy can process the paste almost a day faster than water curing, which is the standard method for curing paste. The use of microwave energy, therefore, can significantly reduce the required energy and production time in the manufacture of high-performance paste.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 105, 15 February 2016, Pages 245-252
Journal: Construction and Building Materials - Volume 105, 15 February 2016, Pages 245-252
نویسندگان
Natt Makul,