تاثیر امواج توان زیاد فراصوتی در افزایش مقاومت فشاری بتن

نوع مقاله : مقاله پژوهشی

نویسندگان

1 عضو هیات علمیگروه مهندسی آکوستیک دانشگاه صدا و سیما

2 مهندسی و مدیریت ساخت، واحدعلوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران

10.22124/jcr.2023.21238.1538

چکیده

امروزه باقی ماندن در بازارهای اقتصادی، بواسطه رقابت شدید تولید کننده‌ها، منوط به حفظ کیفیت و کاهش هزینه‌هاست. همچنین سختگیری‌ها و نگاه ویژه دولتها در خصوص بهبود وضعیت زیست محیطی، صنایع را به سمت تکنولوژی‌های سودمندتر سوق داده است. بنابراین بکارگیری تکنولوژی‌های جدید که منجر به افزایش کیفیت محصول و کاهش هزینه بدون آسیب به محیط زیست شوند، مطلوب خواهند بود. در سال های اخیر استفاده از امواج فراصوتی توان زیاد با توجه به نداشتن آلودگی صوتی، برای بهبود فرآیندهای مهندسی بسیار مورد توجه صنایع مختلف قرارگرفته‌است. موثر بودن این امواج در صنایع ساخت و تولید نظیر کاهش نیروهای ماشینکاری، افزایش صافی سطح و ریزدانه کردن فلزات در حین انجماد، انگیزه نویسندگان برای استفاده از آن در صنعت ساختمان شد. بدین منظور در این تحقیق، استفاده از امواج توان زیاد فراصوتی در زمانهای متفاوت و فرکانس 20 کیلو هرتز در متراکم‌سازی بتن و تاثیر آن بر مقاومت فشاری بتن مورد بررسی قرار گرفت. نتایج این تحقیق نشان می‌دهد که استفاده از امواج توان زیاد فراصوتی به عنوان یک فرآیند تکمیلی در متراکم سازی بتن تازه، می تواند باعث افزایش مقاومت فشاری بتن تا 10 درصد شود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of High power ultrasonic-assisted in increasing compressive strength of concrete

نویسندگان [English]

  • صابر صفار 1
  • seyed mohsen karimi 2
  • majid safehian 2
1 Assistant professor at the acoustic group in IRIB university
2 Islamic Azad University Science and Research Branch
چکیده [English]

Today, staying in economic markets depends on maintaining the quality and cost of production due to the intense competition of producers. It has also led governments to take tougher approaches to improve the environmental situation of industries. Therefore, the use of new technologies that leads to maintaining or increasing product quality and reducing costs without harming the environment will be desirable. Today, the use of high-power ultrasonic waves, due to the lack of noise pollution, has been highly regarded by various industries to improve engineering processes. The effectiveness of these waves in the manufacturing and production industries, such as reducing machinery, increasing surface smoothness, grinding metals during freezing, etc., can also be the motivation for its use in the construction industry. Therefore, the widespread use of high-power ultrasonic waves in various fields of engineering and the identification of the positive effects of these waves on the properties of materials and materials is the reason for the present study. For this purpose, for the first time in this study, the use of high ultrasonic power waves with different powers, different times, and a frequency of 20 kHz in concrete compaction and its effect on concrete compressive strength has been investigated. The results of this study show that the use of ultrasonic high-power waves as a complementary process in the compaction of fresh concrete will increase the compressive strength of concrete by up to 10%.

کلیدواژه‌ها [English]

  • Concrete density
  • Concrete Compressive strength
  • High power ultrasound Frequency
  • Noise pollution

مراجع

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