TY  - JOUR
T1  - Utilization of Concrete Waste as a Cement Replacement: Influence of Calcination on Reactivity and Performance
TT  - Utilization of Concrete Waste as a Cement Replacement: Influence of Calcination on Reactivity and Performance
AU  - Ulugöl, Hüseyin
PY  - 2025
DA  - September
Y2  - 2025
DO  - 10.34248/bsengineering.1762537
JF  - Black Sea Journal of Engineering and Science
JO  - BSJ Eng. Sci.
PB  - Karyay Karadeniz Yayımcılık Ve Organizasyon Ticaret Limited Şirketi
WT  - DergiPark
SN  - 2619-8991
SP  - 1645
EP  - 1651
VL  - 8
IS  - 5
LA  - en
AB  - Concrete waste is one of the major components of construction and demolition wastes, as well as a material that must be removed in an environmentally safe manner. With the inclusion of concrete waste as a minor additional constituent, the popularity of its utilization has gained importance. This study utilizes concrete waste with replacement ratios of 20%, 40%, and 60%, in both calcined and non-calcined forms. Two different calcination temperatures were applied to see the effect of calcination temperatures. Results show that as the replacement ratio of non-calcined concrete waste increases, mechanical performance decreases. However, calcination enhances the reactivity of concrete waste, and at an optimum replacement ratio of 20%, the compressive strength is higher than that of the reference specimen. After freeze-thaw cycles, specimens with 20% calcined concrete waste exhibit lower compressive strength losses compared to the reference specimen. Regarding the mass losses after freeze-thaw cycles, 20% concrete waste calcined at 950 °C have better performance than reference specimen. This study shows that with a 20% replacement ratio, calcined concrete waste can be used as a cement replacement material.
KW  - Concrete waste
KW  - Calcination
KW  - Freeze-thaw
KW  - Strength loss
KW  - Electrical resistance
N2  - Concrete waste is one of the major components of construction and demolition wastes, as well as a material that must be removed in an environmentally safe manner. With the inclusion of concrete waste as a minor additional constituent, the popularity of its utilization has gained importance. This study utilizes concrete waste with replacement ratios of 20%, 40%, and 60%, in both calcined and non-calcined forms. Two different calcination temperatures were applied to see the effect of calcination temperatures. Results show that as the replacement ratio of non-calcined concrete waste increases, mechanical performance decreases. However, calcination enhances the reactivity of concrete waste, and at an optimum replacement ratio of 20%, the compressive strength is higher than that of the reference specimen. After freeze-thaw cycles, specimens with 20% calcined concrete waste exhibit lower compressive strength losses compared to the reference specimen. Regarding the mass losses after freeze-thaw cycles, 20% concrete waste calcined at 950 °C have better performance than reference specimen. This study shows that with a 20% replacement ratio, calcined concrete waste can be used as a cement replacement material.
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UR  - https://doi.org/10.34248/bsengineering.1762537
L1  - https://dergipark.org.tr/tr/download/article-file/5142862
ER  -