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• Relation Between Density and Compressive Strength of Hardened Concrete
  Shohana Iffat
  Challenge Journal of Concrete Research Letters (2015) 6(4)
  Concrete must has to ensure satisfactory compressive strength and durability. The mechanical properties of concrete are highly influenced by its density. A denser concrete generally provides higher strength and fewer amount of voids and porosity. Smaller the v...
• Effects of structural irregularities on low and mid-rise RC building response
  Hüseyin Bilgin, Rezarta Uruçi
  Challenge Journal of Structural Mechanics (2018) 4(2) 33-44
  During the recent earthquakes, it has been observed that structural irregularities are one of the main reasons of the building damage. Irregularities are weak points in a building which may cause failure of one element or total collapse of the building during ...
• Photocatalytic activation of fibrous lightweight polymer concrete surfaces under artificial light source
  Serdal Ünal, Mehmet Canbaz
  Challenge Journal of Concrete Research Letters (2025) 16(1) 15-24
  In general, surface contamination of building materials is caused by pollution, which can be divided into human-made and natural sources. Building materials whose surfaces are exposed to pollutants from these sources for a long time show chemical and physical ...
• Calcium aluminate cement based high early strength engineered cementitious composites with recycled artificial flaws
  Ahmed Latif Kadhim, Süleyman Bahadır Keskin
  Challenge Journal of Concrete Research Letters (2024) 15(4) 120-133
  Engineered Cementitious Composites (ECC) is an ideal repair material due to its high durability and ductility. However, providing ECC with high early strength is challenging since strength and ductility, which are key to crack-free repair, are also interdepend...
• Impact of wrap quantity on strength of damaged and undamaged CFRP-reinforced structural members
  Serdal Ünal, Ahmet Burak Kurt, Mehmet Canbaz
  Challenge Journal of Concrete Research Letters (2025) 16(3) 133-141
  In this study, the effect of carbon fiber reinforced polymer (CFRP) wrapping on the compressive and bending behavior of damaged reinforced concrete structural elements located in high earthquake risk areas was investigated in detail. The main objective was to ...