کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4911591 | 1428459 | 2017 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mix design and properties of fly ash waste lightweight aggregates in structural lightweight concrete
ترجمه فارسی عنوان
طراحی مخلوط و خواص از بین بردن خاکستر سنگین وزن سبک وزن در بتن ساختاری سبک وزن
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کلمات کلیدی
پیچ خورده استحکام، طراحی مخلوط، مقاومت
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Concrete is one of the most widely used construction materials and has the ability to consume industrial wastes in high volume. As the demand for concrete is increasing, one of the effective ways to reduce the undesirable environmental impact of the concrete is by the use of waste and by-product materials as cement and aggregate substitutes in concrete. One such waste material is fly ash, which is produced in large quantities from thermal power plants as a by-product. A substantial amount of fly ash is left unused posing environmental and storage problems. The production of sintered lightweight aggregate with fly ash is an effective method to dispose of fly ash in large quantities. Due to lack of a proper mix design procedure, the production and application of lightweight aggregate in structural concrete are not much entertained. The absorption characteristic of lightweight aggregate is a major concern, while developing the mix proportioning of lightweight concretes. The present study is an attempt to establish a new mix design procedure for the development of sintered fly ash lightweight aggregate concretes, which is simple and more reliable than the existing procedures. Also, the proposed methodology has been validated by developing a spectrum of concretes having water cement ratios varying from 0.25 to 0.75. From the study, it is obvious that the development of 70Â MPa concrete is possible by using cement alone without any additives. Also, it is ensured that all the concretes have densities less than 2000Â kg/m3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Case Studies in Construction Materials - Volume 7, December 2017, Pages 336-347
Journal: Case Studies in Construction Materials - Volume 7, December 2017, Pages 336-347
نویسندگان
Manu S. Nadesan, P. Dinakar,