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 / Application
Source:
Construction and Building Materials, 2013, 47, 1503-1511
TY - JOUR
AU - Radonjanin, Vlastimir
AU - Malešev, Mirjana
AU - Marinković, Snežana
AU - Al Malty, Ali Emhemd Saed
PY - 2013
UR - http://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",
url = "http://grafar.grf.bg.ac.rs/handle/123456789/527",
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.
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. Construction and Building Materials. 2013;47:1503-1511
Radonjanin Vlastimir, Malešev Mirjana, Marinković Snežana, Al Malty Ali Emhemd Saed, "Green recycled aggregate concrete" Construction and Building Materials, 47 (2013):1503-1511,
https://doi.org/10.1016/j.conbuildmat.2013.06.076 .
