A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance of mortar and concrete containing artificial aggregate from cold-bonded sulphidic mine tailings
https://orcid.org/0000-0001-9999-5236
Highlights Pioneering valorization of sulfidic mine tailings into cold-bonded granules. Minimal heavy metal leaching endorses safe use in second-life applications. Granule content versus concrete performance (workability, strength and durability).
Abstract Repurposing sulphidic tailings in construction products offers a sustainable solution for this mining waste. Aggregates (1–4 mm and 2–8 mm) were produced at pilot scale using cold granulation with minimal cement content (6 wt% CEM III/B + 94 wt% tailings). Superplasticizer dose was optimized in mortar and concrete mixes replacing 17 % and 32 % of natural aggregates. The concretes benefit from the additional buffering capacity from cement hydrates in granules (relevant for carbonation and chloride penetration), but their increased porosity lower freeze–thaw resistance. Cement-based mixes offer a sustainable solution for this waste in applications with moderate or non-structural requirements.
Performance of mortar and concrete containing artificial aggregate from cold-bonded sulphidic mine tailings
https://orcid.org/0000-0001-9999-5236
Highlights Pioneering valorization of sulfidic mine tailings into cold-bonded granules. Minimal heavy metal leaching endorses safe use in second-life applications. Granule content versus concrete performance (workability, strength and durability).
Abstract Repurposing sulphidic tailings in construction products offers a sustainable solution for this mining waste. Aggregates (1–4 mm and 2–8 mm) were produced at pilot scale using cold granulation with minimal cement content (6 wt% CEM III/B + 94 wt% tailings). Superplasticizer dose was optimized in mortar and concrete mixes replacing 17 % and 32 % of natural aggregates. The concretes benefit from the additional buffering capacity from cement hydrates in granules (relevant for carbonation and chloride penetration), but their increased porosity lower freeze–thaw resistance. Cement-based mixes offer a sustainable solution for this waste in applications with moderate or non-structural requirements.
Performance of mortar and concrete containing artificial aggregate from cold-bonded sulphidic mine tailings
https://orcid.org/0000-0001-9999-5236
Highlights Pioneering valorization of sulfidic mine tailings into cold-bonded granules. Minimal heavy metal leaching endorses safe use in second-life applications. Granule content versus concrete performance (workability, strength and durability).
Abstract Repurposing sulphidic tailings in construction products offers a sustainable solution for this mining waste. Aggregates (1–4 mm and 2–8 mm) were produced at pilot scale using cold granulation with minimal cement content (6 wt% CEM III/B + 94 wt% tailings). Superplasticizer dose was optimized in mortar and concrete mixes replacing 17 % and 32 % of natural aggregates. The concretes benefit from the additional buffering capacity from cement hydrates in granules (relevant for carbonation and chloride penetration), but their increased porosity lower freeze–thaw resistance. Cement-based mixes offer a sustainable solution for this waste in applications with moderate or non-structural requirements.
Performance of mortar and concrete containing artificial aggregate from cold-bonded sulphidic mine tailings
Villagran-Zaccardi, Yury (author) / Horckmans, Liesbeth (author) / Peys, Arne (author)
2023-11-01
Article (Journal)
Electronic Resource
English
Oxygen Diffusion through Soil Covers on Sulphidic Mine Tailings
| British Library Online Contents | 1993
Oxygen Diffusion through Soil Covers on Sulphidic Mine Tailings.
| Online Contents | 1993
Prediction of metal discharges from sulphidic mine tailings covered with soil
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Developing durable paste backfill from sulphidic tailings
| Online Contents | 2007