Mechanical and porosity properties of recycled pervious concrete aggregate-bearing pervious concretes


Yavuz D., Gultekin A.

Journal of Sustainable Cement-Based Materials, cilt.13, sa.9, ss.1289-1300, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 9
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1080/21650373.2024.2374837
  • Dergi Adı: Journal of Sustainable Cement-Based Materials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1289-1300
  • Anahtar Kelimeler: computed tomography, image analysis, pervious concrete, porosity, Recycled pervious concrete aggregate
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

The recycling of construction wastes holds significant importance both environmentally and economically. While extensive research has been conducted on aggregates derived from various wastes, the recycling of pervious concretes (PC) has been largely overlooked. This study addresses this gap by examining the porosity and mechanical properties of PC manufactured using aggregates obtained from recycled PC. The investigation focuses on three key factors: aggregate size (5/15, 10/15, and 15/25 mm size fractions), fiber inclusion (dosages of 0.1%, 0.2%, and 0.3% by volume), and aggregate type (limestone aggregate and recycled aggregate). Through image processing techniques, void characteristics including amount, structure, and homogeneity were quantified. Results indicate that the use of recycled aggregate led to a decrease in compressive strength ranging from 29% to 65%, depending on aggregate size fraction and fiber content. Porosity assessments revealed higher porosity in concrete utilizing recycled aggregate, with computer-based methods yielding values closely aligned with volumetric results.