A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stiffening effects of LFS slags reused as filler in asphalt mixtures
https://orcid.org/0000-0002-1312-9503
https://orcid.org/0000-0002-2198-0840
https://orcid.org/0000-0001-7438-1887
Abstract Nowadays, the use of Ladle Furnace Steel (LFS) is spreading in the field of asphalt pavements. LFS are generally used as filler in Hot Mix Asphalt (HMA). The main purpose of this study is to analyse and understand the role of LFS characteristics on the possible stiffening effects of asphalt materials. Different characteristics of LFSs, such as particle size distribution, specific surface area (SSA), chemical and mineralogical properties were evaluated in addition to the performance of HMAs on different scales (mastic and HMA). One type of LFS, one standard limestone and their blends were mixed with two different asphalt binders, one pure and one 3.5% Styrene–Butadiene–Styrene (SBS) cross-linked modified. The results showed no significant correlations between the physical properties of the LFS and the performance levels of the HMAs, but it was pointed out that the LFS content in the filler blend should not exceed 30%.
Highlights No-significant stiffening effects are highlighted when the LFSs are used as filler. The morphological and particle size analysis show striking differences between limestone and LFS. No-significant correlations are highlighted among LFSs’ physical properties and HMAs’ performance levels.
Stiffening effects of LFS slags reused as filler in asphalt mixtures
https://orcid.org/0000-0002-1312-9503
https://orcid.org/0000-0002-2198-0840
https://orcid.org/0000-0001-7438-1887
Abstract Nowadays, the use of Ladle Furnace Steel (LFS) is spreading in the field of asphalt pavements. LFS are generally used as filler in Hot Mix Asphalt (HMA). The main purpose of this study is to analyse and understand the role of LFS characteristics on the possible stiffening effects of asphalt materials. Different characteristics of LFSs, such as particle size distribution, specific surface area (SSA), chemical and mineralogical properties were evaluated in addition to the performance of HMAs on different scales (mastic and HMA). One type of LFS, one standard limestone and their blends were mixed with two different asphalt binders, one pure and one 3.5% Styrene–Butadiene–Styrene (SBS) cross-linked modified. The results showed no significant correlations between the physical properties of the LFS and the performance levels of the HMAs, but it was pointed out that the LFS content in the filler blend should not exceed 30%.
Highlights No-significant stiffening effects are highlighted when the LFSs are used as filler. The morphological and particle size analysis show striking differences between limestone and LFS. No-significant correlations are highlighted among LFSs’ physical properties and HMAs’ performance levels.
Stiffening effects of LFS slags reused as filler in asphalt mixtures
https://orcid.org/0000-0002-1312-9503
https://orcid.org/0000-0002-2198-0840
https://orcid.org/0000-0001-7438-1887
Abstract Nowadays, the use of Ladle Furnace Steel (LFS) is spreading in the field of asphalt pavements. LFS are generally used as filler in Hot Mix Asphalt (HMA). The main purpose of this study is to analyse and understand the role of LFS characteristics on the possible stiffening effects of asphalt materials. Different characteristics of LFSs, such as particle size distribution, specific surface area (SSA), chemical and mineralogical properties were evaluated in addition to the performance of HMAs on different scales (mastic and HMA). One type of LFS, one standard limestone and their blends were mixed with two different asphalt binders, one pure and one 3.5% Styrene–Butadiene–Styrene (SBS) cross-linked modified. The results showed no significant correlations between the physical properties of the LFS and the performance levels of the HMAs, but it was pointed out that the LFS content in the filler blend should not exceed 30%.
Highlights No-significant stiffening effects are highlighted when the LFSs are used as filler. The morphological and particle size analysis show striking differences between limestone and LFS. No-significant correlations are highlighted among LFSs’ physical properties and HMAs’ performance levels.
Stiffening effects of LFS slags reused as filler in asphalt mixtures
Roberto, A. (author) / Bisanti, F. (author) / Pizzati, M. (author) / Mantovani, L. (author) / Romeo, E. (author) / Tebaldi, G. (author)
2023-07-30
Article (Journal)
Electronic Resource
English
Re-using Ladle Furnace Steel slags as filler in asphalt mixtures
| Elsevier | 2022
| TIBKAT | 1969
New Conceptual Model for Filler Stiffening Effect on Asphalt Mastic of Microsurfacing
| Online Contents | 2015
New Conceptual Model for Filler Stiffening Effect on Asphalt Mastic of Microsurfacing
| British Library Online Contents | 2015