رتبه‌بندی طرح‌های‌‌ اختلاط بتن پودری واکنشی با استفاده از تکنیک‌های تصمیم‌گیری چند معیاره با تاکید بر سه روش SAW، TOPSIS و VIKOR

مصلحی, عباس; دشتی رحمت آبادی, محمد علی; آرمان, حسین

doi:10.22065/jsce.2020.218625.2071

رتبه‌بندی طرح‌های‌‌ اختلاط بتن پودری واکنشی با استفاده از تکنیک‌های تصمیم‌گیری چند معیاره با تاکید بر سه روش SAW، TOPSIS و VIKOR

نوع مقاله : علمی - پژوهشی

نویسندگان

¹ گروه عمران، واحد یزد، دانشگاه آزاد اسلامی، یزد، ایران

² گروه مدیریت، واحد نجف‌آباد، دانشگاه آزاد اسلامی، نجف‌آباد، ایران

10.22065/jsce.2020.218625.2071

چکیده

چکیده
بتن پودری واکنشی (واکنش‌پذیر) نوع خاصی از بتن است که استحکام و دوام آن با از بین بردن مصالح درشت دانه و استفاده از مواد افزودنی، بهبود یافته است و به دلیل تنوع در مصالح و روش ساخت آن، نسبت اجزای تشکیل دهنده‌ یا به عبارتی طرح‌‌های اختلاط متفاوتی برای تولید این نوع بتن ارائه شده است و تصمیم‌گیری در مورد انتخاب مناسبت‌ترین طرح اختلاط بتن پودری واکنشی مشکل خواهد بود. در این تحقیق سعی بر آن است که از تکنیک‌های تصمیم‌گیری چند معیاره به منظور ، رتبه‌بندی و انتخاب مناسب‌ترین طرح‌های اختلاط بتن پودری واکنشی استفاده شود.
شاخص‌های مؤثر در طرح اختلاط بتن، شامل: سیمان، آب، پودر سیلیس، ماسه سیلیسی، پودر میکروسیلیس، فوق روان کننده، مقاومت فشاری، درصد جذب آب و وزن واحد حجم است که با استفاده از پیشینه پژوهش تعیین و مورد ارزیابی قرار می‌گیرند.
ابتدا وزن شاخص‌ها با روش آنتروپی شانون مشخص، و ماتریس تصمیم تشکیل شد، سپس طرح‌های اختلاط بتن پودری واکنشی با سه تکنیک ساو، تاپسیس و ویکور بصورت مجزا رتبه‌بندی شدند. نتایج تحقیق نشان می‌دهد به کارگیری تکنیک‌های گوناگون تصمیم‌گیری، منجر به رتبه‌بندی متفاوتی برای گزینه‌ها می‌شود. بنابر این جهت حصول رتبه‌بندی نهایی، روش کُپلند به عنوان بهترین روش پیشنهاد شده است و استفاده از تکنیک‌های تصمیم‌گیری چند معیاره برای رتبه‌بندی طرح‌های‌‌ اختلاط بتن پودری واکنشی، روشی مناسب و قابل قبول است.
رتبه‌بندی نهایی کُپلند با تکنیک‌های ساو، تاپسیس و ویکور مقایسه و معلوم گردید که نتایج رتبه‌بندی روش‌های ساو، تاپسیس و ویکور به ترتیب 100، 85 و 70 درصد با روش کُپلند مطابقت دارد. همچنین روش ساو به دلیل مطابقت 100 درصدی با روش کُپلند، مناسب‌ترین روش برای رتبه‌بندی طرح‌های اختلاط بتن واکنشی شناخته شد.

کلیدواژه‌ها

موضوعات

مدیریت پروژه و ساخت

عنوان مقاله [English]

Ranking of Mix Design Reactive Powder Concrete Using Multiple Criteria Decision Making Techniques with Emphasising on Three Techniques SAW, TOPSIS and VIKOR

نویسندگان [English]

Abbas Moslehi ¹
Mohammad Ali Dashti Rahmatabadi ¹
Hosein Arman ²

¹ Department of Civil Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran

² Department of Management, Najafabad Branch, Islamic Azad University, Najafabad, Iran

چکیده [English]

ABSTRACT
Reactive powder concrete is a special type of concrete whose strength and durability have been improved by removing coarse-grained materials and the use of additives, and due to the variety of materials and methods of construction, the ratio of components or in other words Different mixing schemes have been proposed for the production of this type of concrete, and it will be difficult to decide on the best choice of reactive powder concrete mixing scheme. In this research, it is tried to use multi-criteria decision making techniques in order to rank and select the most appropriate mixed concrete powder mixing designs.
Effective indicators in the concrete mixing plan include: cement, water, silica powder, silica sand, microsilica powder, superplasticizer, compressive strength, water absorption percentage and unit weight of volume, which are determined and evaluated using research background.
First, the weight of the indices was determined by Shannon's entropy method, and the decision matrix was formed, then the reaction powder concrete mixing schemes were ranked separately with the three techniques of SAW, TOPSIS and VIKOR. Research shows that using different decision-making techniques can lead to different rankings for options. Therefore, in order to obtain the final ranking, the Copeland method has been proposed as the best method, and the use of multi-criteria decision-making techniques for ranking the mixed concrete mixing projects is a suitable and acceptable method.
The final ranking of Copeland was compared with the techniques of SAW, TOPSIS, and VIKOR, and it was found that the results of ranking of SAW, TOPSIS, and VIKOR methods were 100, 85, and 70 percent consistent with the Kopland method, respectively. Also, the SAW method was considered the most suitable method for ranking reactive concrete mixing schemes due to its 100% compliance with the Copeland method.

کلیدواژه‌ها [English]

Reactive Powder Concrete
Mix Design Ranking
Multi-Criteria Decision Making
SAW
TOPSIS
VIKOR
Copeland

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