TY - GEN
T1 - Use of Recycled Coarse Aggregate in Concrete f'c=210 kg/cm2 when Incorporating Percentages of Recycled Coarse Aggregate
AU - Jhon Castillo Marín, Arbin
AU - Yerson Tacilla Culqui, Crhistian
AU - Alva Sarmiento, Anita
N1 - Publisher Copyright:
© 2024 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
PY - 2024
Y1 - 2024
N2 - The purpose of this work was to determine the compressive strength of concrete f'c=210 kg/cm2 replacing three percentages of recycled coarse aggregate (50%, 75% and 100%), using mix design methods: Walker and ACI, natural aggregates from the Tar Tar - Baños del Inca quarry were used, and recycled concrete blocks were collected from the clearing located on the Otuzco-Cajamarca highway. This research is of experimental design, with a quantitative approach due to data collection and analysis. It began by determining the physical and mechanical properties of the aggregates, verifying that it is within the parameters established by the NTP 400.037 standard, continuing with dosing based on the design methods, for a sample of 96 specimens adding 50%, 75 % and 100% recycled concrete, at the curing ages of 7, 14 and 28 days. From this, the compressive strength of the samples was evaluated, 48 for each mixture design method, with the two methods exceeding the design resistance f'c=210 kg/cm2 by adding 50% of recycled material., the hypothesis of this study being feasible, it is important to mention that the Walker method presents better results where an average maximum resistance was reached after 28 days of 250.90 kg/cm2 with natural aggregate, 220.44 kg/cm2 for 50%, 194.43 kg/cm2 for 75% and 187.94 kg/cm2 for 100%..
AB - The purpose of this work was to determine the compressive strength of concrete f'c=210 kg/cm2 replacing three percentages of recycled coarse aggregate (50%, 75% and 100%), using mix design methods: Walker and ACI, natural aggregates from the Tar Tar - Baños del Inca quarry were used, and recycled concrete blocks were collected from the clearing located on the Otuzco-Cajamarca highway. This research is of experimental design, with a quantitative approach due to data collection and analysis. It began by determining the physical and mechanical properties of the aggregates, verifying that it is within the parameters established by the NTP 400.037 standard, continuing with dosing based on the design methods, for a sample of 96 specimens adding 50%, 75 % and 100% recycled concrete, at the curing ages of 7, 14 and 28 days. From this, the compressive strength of the samples was evaluated, 48 for each mixture design method, with the two methods exceeding the design resistance f'c=210 kg/cm2 by adding 50% of recycled material., the hypothesis of this study being feasible, it is important to mention that the Walker method presents better results where an average maximum resistance was reached after 28 days of 250.90 kg/cm2 with natural aggregate, 220.44 kg/cm2 for 50%, 194.43 kg/cm2 for 75% and 187.94 kg/cm2 for 100%..
KW - Coarse Aggregate
KW - Compression
KW - Recycled Concrete
UR - https://www.scopus.com/pages/publications/85203810215
U2 - 10.18687/LACCEI2024.1.1.761
DO - 10.18687/LACCEI2024.1.1.761
M3 - Conference contribution
AN - SCOPUS:85203810215
T3 - Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
BT - Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology
T2 - 22nd LACCEI International Multi-Conference for Engineering, Education and Technology, LACCEI 2024
Y2 - 17 July 2024 through 19 July 2024
ER -