Green recycled aggregate concrete
Abstract
The paper presents results of experimental investigation of concrete made with recycled concrete aggregate, low cement content and high content of different mineral supplements. Such concretes belong to "green" or "eco" concretes, since they have less impact on the environment, help in solving the problem of construction and industrial waste disposal, and contribute to the conservation of natural resources. For green recycled aggregate concrete (GRAC) production fine river aggregate and coarse recycled aggregate were used and 50% of cement by weight was replaced by a variety of inert, pozzolanic, and highly reactive mineral admixtures: milled limestone, fly ash, silica fume and metakaolin. Basic properties of ten different concrete mixtures were tested, compared and classified in terms of possible applications. Test results showed that the optimal combination of different mineral admixtures can reduce the basic disadvantage of concrete with high content of mineral supplements - the rel...atively low strength in the period up to 28-day age, which allows certain structural applications of this type of "green" concrete.
Keywords:
Recycled aggregate concrete / Mineral admixture / Hydration temperature / Compressive strength / Tensile strength / Modulus of elasticity / Water penetration / ApplicationSource:
Construction and Building Materials, 2013, 47, 1503-1511Funding / projects:
DOI: 10.1016/j.conbuildmat.2013.06.076
ISSN: 0950-0618
WoS: 000325232600167
Scopus: 2-s2.0-84880532460
Institution/Community
GraFarTY - JOUR AU - Radonjanin, Vlastimir AU - Malešev, Mirjana AU - Marinković, Snežana AU - Al Malty, Ali Emhemd Saed PY - 2013 UR - https://grafar.grf.bg.ac.rs/handle/123456789/527 AB - The paper presents results of experimental investigation of concrete made with recycled concrete aggregate, low cement content and high content of different mineral supplements. Such concretes belong to "green" or "eco" concretes, since they have less impact on the environment, help in solving the problem of construction and industrial waste disposal, and contribute to the conservation of natural resources. For green recycled aggregate concrete (GRAC) production fine river aggregate and coarse recycled aggregate were used and 50% of cement by weight was replaced by a variety of inert, pozzolanic, and highly reactive mineral admixtures: milled limestone, fly ash, silica fume and metakaolin. Basic properties of ten different concrete mixtures were tested, compared and classified in terms of possible applications. Test results showed that the optimal combination of different mineral admixtures can reduce the basic disadvantage of concrete with high content of mineral supplements - the relatively low strength in the period up to 28-day age, which allows certain structural applications of this type of "green" concrete. T2 - Construction and Building Materials T1 - Green recycled aggregate concrete EP - 1511 SP - 1503 VL - 47 DO - 10.1016/j.conbuildmat.2013.06.076 ER -
@article{ author = "Radonjanin, Vlastimir and Malešev, Mirjana and Marinković, Snežana and Al Malty, Ali Emhemd Saed", year = "2013", abstract = "The paper presents results of experimental investigation of concrete made with recycled concrete aggregate, low cement content and high content of different mineral supplements. Such concretes belong to "green" or "eco" concretes, since they have less impact on the environment, help in solving the problem of construction and industrial waste disposal, and contribute to the conservation of natural resources. For green recycled aggregate concrete (GRAC) production fine river aggregate and coarse recycled aggregate were used and 50% of cement by weight was replaced by a variety of inert, pozzolanic, and highly reactive mineral admixtures: milled limestone, fly ash, silica fume and metakaolin. Basic properties of ten different concrete mixtures were tested, compared and classified in terms of possible applications. Test results showed that the optimal combination of different mineral admixtures can reduce the basic disadvantage of concrete with high content of mineral supplements - the relatively low strength in the period up to 28-day age, which allows certain structural applications of this type of "green" concrete.", journal = "Construction and Building Materials", title = "Green recycled aggregate concrete", pages = "1511-1503", volume = "47", doi = "10.1016/j.conbuildmat.2013.06.076" }
Radonjanin, V., Malešev, M., Marinković, S.,& Al Malty, A. E. S.. (2013). Green recycled aggregate concrete. in Construction and Building Materials, 47, 1503-1511. https://doi.org/10.1016/j.conbuildmat.2013.06.076
Radonjanin V, Malešev M, Marinković S, Al Malty AES. Green recycled aggregate concrete. in Construction and Building Materials. 2013;47:1503-1511. doi:10.1016/j.conbuildmat.2013.06.076 .
Radonjanin, Vlastimir, Malešev, Mirjana, Marinković, Snežana, Al Malty, Ali Emhemd Saed, "Green recycled aggregate concrete" in Construction and Building Materials, 47 (2013):1503-1511, https://doi.org/10.1016/j.conbuildmat.2013.06.076 . .