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A platform for research: civil engineering, architecture and urbanism
Binding Capacity of Quarry Fines for Granular Aggregates
Loss of coarse aggregate is a common problem for granular roadways due to a lack of fine particles with binding capability. Chemical stabilization is one of the most commonly applied techniques to solve the binding issue of coarse aggregates in granular roadways. However, such methods are usually not economical and may pose environmental concerns such as leaching of heavy metals and nitrates. Quarry fines are the by-product of the crushing process of stones during aggregate production. They can be used as alternative materials to overcome the binding problem while ensuring the treatment is sustainable, economical, and environmentally friendly. The binding capacity of a soil material is directly related to its plasticity index (PI), alumina content, and fineness. In the current study, quarry fines from seven different sources were collected and assessed for their capacity to bind granular aggregates. X-ray fluorescence (XRF), sieve-hydrometer tests, and Atterberg limit tests were conducted on each quarry fines material. Binding capacity of the materials were assessed via vane shear and pocket penetrometer tests on quarry fines specimens prepared as a slurry. In addition, the optimum mixtures of quarry fines with surface aggregates were investigated by comparing the results of California bearing ratio (CBR) tests, for which pairwise correlations were found. Overall, the results show that quarry fines with higher alumina content and PI had higher binding characteristics.
Binding Capacity of Quarry Fines for Granular Aggregates
Loss of coarse aggregate is a common problem for granular roadways due to a lack of fine particles with binding capability. Chemical stabilization is one of the most commonly applied techniques to solve the binding issue of coarse aggregates in granular roadways. However, such methods are usually not economical and may pose environmental concerns such as leaching of heavy metals and nitrates. Quarry fines are the by-product of the crushing process of stones during aggregate production. They can be used as alternative materials to overcome the binding problem while ensuring the treatment is sustainable, economical, and environmentally friendly. The binding capacity of a soil material is directly related to its plasticity index (PI), alumina content, and fineness. In the current study, quarry fines from seven different sources were collected and assessed for their capacity to bind granular aggregates. X-ray fluorescence (XRF), sieve-hydrometer tests, and Atterberg limit tests were conducted on each quarry fines material. Binding capacity of the materials were assessed via vane shear and pocket penetrometer tests on quarry fines specimens prepared as a slurry. In addition, the optimum mixtures of quarry fines with surface aggregates were investigated by comparing the results of California bearing ratio (CBR) tests, for which pairwise correlations were found. Overall, the results show that quarry fines with higher alumina content and PI had higher binding characteristics.
Binding Capacity of Quarry Fines for Granular Aggregates
Satvati, Sajjad (author) / Cetin, Bora (author) / Ashlock, Jeramy C. (author) / Ceylan, Halil (author) / Rutherford, Cassandra (author)
Geo-Congress 2020 ; 2020 ; Minneapolis, Minnesota
Geo-Congress 2020 ; 457-466
2020-02-21
Conference paper
Electronic Resource
English
Binding Capacity of Quarry Fines for Granular Aggregates
| British Library Conference Proceedings | 2020
| Engineering Index Backfile | 1938
| Engineering Index Backfile | 1938
| Engineering Index Backfile | 1938
| Engineering Index Backfile | 1938