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• Determining datum temperature and apparent activation energy: an approach for mineral admixtures incorporated cementitious systems
  Muhammet Atasever, Mustafa Tokyay
  Challenge Journal of Concrete Research Letters (2024) 15(4) 142-149
  The maturity method is used to predict the strength of concrete by monitoring its temperature history. Accuracy of maturity method relies on the dependable determination of the datum temperature and the apparent activation energy. The current study introduces ...
• Effect of waste concrete powder on slag-based sustainable geopolymer composite mortars
  Erdinç Halis Alakara, Özer Sevim, İlhami Demir, Gazi Günel
  Challenge Journal of Concrete Research Letters (2022) 13(3) 101-106
  In this study, the effect of waste concrete powder (WCP) on slag-based geopolymer composite mortars was investigated. Blast furnace slag (BFS) and WCP were used as binders in geopolymer mortars. WCP was substituted into the geopolymer mortar composites at rate...
• 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...
• Abrasion Resistance of Concrete – Design, Construction and Case Study
  Benjamin D. Scott, Md. Safiuddin
  Challenge Journal of Concrete Research Letters (2015) 6(3)
  One of the most common forms of deterioration imposed on concrete structures is surface abrasion. This mechanical wearing can be a catalyst for other forms of deterioration such as cracking and corrosion of reinforcing steel. This report is intended to discuss...
• Freeze-thaw and drop-weight impact resistance of fiber-reinforced pervious concretes produced using recycled pervious concrete aggregate
  Demet Yavuz
  Challenge Journal of Structural Mechanics (2024) 10(4) 138-148
  Pervious concrete can rapidly drain stormwater from the top layer to the sublayer. However, the porous structure of this concrete also results in low mechanical properties, which prevent the widespread use of pervious concrete around the world. This study inve...