مقایسه تطبیقی مقاومت فشاری و روانی بتن رنگی با رنگ‌دانه‌های شیمیایی، معدنی و ترکیبی در راستای ارتقا کیفیت دیداری در طراحی منظر شهری

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه شهرسازی، دانشکده هنر و معماری، دانشگاه شیراز، شیراز، ایران، کدپستی: 7188637911

2 گروه معماری و شهرسازی،دانشکده مهندسی عمران و معماری، دانشگاه ملی مهارت، تهران، ایران، کدپستی: ۱۴۳۵۷۶۱۱۳۷

3 گروه مهندسی عمران،دانشکده مهندسی عمران و معماری، دانشگاه ملی مهارت، تهران، ایران، کدپستی: ۱۴۳۵۷۶۱۱۳۷

10.30509/jcst.2025.167588.1263

چکیده

بتن رنگی در پروژه‌های طراحی شهری می‌تواند به‌عنوان ابزاری کارآمد برای ارتقای خوانایی دیداری مورد استفاده قرار گیرد. هدف از پژوهش حاضر، بررسی تطبیقی اثر رنگ‌دانه‌های شیمیایی، معدنی و ترکیبی بر ویژگی‌های مکانیکی بتن شامل مقاومت فشاری و روانی، به‌منظور بهره‌گیری از بتن رنگی در طراحی و منظر شهری پرداخته است. در این راستا، آزمایش‌هایی بر روی نمونه‌های بتن با رنگ‌دانه‌های شیمیایی (در رنگ‌های قرمز، زرد، سبز و آبی)، رنگ‌دانه‌های ترکیبی (فیروزه‌ای) و رنگ‌دانه‌های معدنی (لیمونیت) انجام شده است. نتایج آزمایش‌ها نشان می‌دهد که افزودن رنگ‌دانه‌ها تأثیر قابل‌توجهی بر روانی و مقاومت فشاری بتن دارد. به‌ویژه، استفاده از رنگ‌دانه‌های شیمیایی باعث کاهش روانی و مقاومت فشاری بتن می‌شود، به‌طوری که در درصدهای بالاتر رنگ‌دانه‌ها این کاهش بیشتر مشهود است. رنگ‌دانه زرد نسبت به سایر رنگ‌ها کمترین تأثیر منفی را بر روانی و مقاومت فشاری داشت. در مقابل، رنگ‌دانه‌ معدنی لیمونیت موجب افزایش مقاومت فشاری بتن، به‌ویژه در درصدهای 5 و 10 درصد شدند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Comparative Comparison of Compressive Strength and Slump of Colored Concrete with Chemical, Mineral, and Composite Pigments to Improve Visual Quality in Urban Landscape Design

نویسندگان [English]

  • Hamidreza Sheibani 1
  • Farhad Avaznejad 2
  • Mahmoud Reza Golshaan 3
  • khalil Hajipoor 1
1 Department of Urban Planning and Design, Faculty of Art and Architecture, Shiraz University, P.O. Code: 7188637911, Shiraz, Iran
2 Department of Architecture and Urban Planning, Faculty of Civil Engineering and Architecture, Technical and Vocational University (TVU), P.O. Code: 1435761137, Tehran, Iran
3 Department of Civil Engineering, Faculty of Civil Engineering and Architecture, Technical and Vocational University (TVU), P.O. Code: 1435761137, Tehran, Iran
چکیده [English]

Colored concrete can be an effective tool for improving visual readability in urban design projects. The present study aims to conduct a comparative study of the effect of chemical, mineral, and composite pigments on the mechanical properties of concrete, including compressive strength and slump, to utilize colored concrete in urban design and landscape. In this regard, experiments were conducted on concrete samples with chemical pigments (in red, yellow, green, and blue), composite pigments (turquoise), and mineral pigments (limonite). The results of the experiments show that adding pigments significantly affects the flowability (slump) and compressive strength of concrete. In particular, the use of chemical pigments reduces the flowability and compressive strength of concrete, with the reduction more evident at higher pigment percentages. The yellow pigment had the least negative effect on flowability and compressive strength among the colors. In contrast, limonite mineral pigment increased the compressive strength of concrete, especially at 5 and 10 % percentages.

کلیدواژه‌ها [English]

  • Colored Concrete
  • Chemical Pigment
  • Mineral Pigment
  • Concrete Workability
  • Compressive Strength
  • Urban Design
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