| Title | Feasibility for co-utilisation of Carbonated Reactive Magnesia Cement (CRMC) and industrial wastes in circular economy and CO2 mineralisation |
|---|---|
| ID_Doc | 4782 |
| Authors | Soares, EG; Castro-Gomes, J; Sitarz, M; Zdeb, T; Hager, I; Hassan, K; Al-Kuwari, MS |
| Title | Feasibility for co-utilisation of Carbonated Reactive Magnesia Cement (CRMC) and industrial wastes in circular economy and CO2 mineralisation |
| Year | 2022 |
| Published | |
| Abstract | The increased concern about climate change is leading to the growth of research interest in alternatives to mitigate its effect. Such trend is also observed in the materials and building technologies field, where among the many possible alternatives. Cementitious composites with a lower CO2 footprint have been recently developed to incorporate waste in their composition, with the capability to adsorb CO2. This study evaluates the feasibility of incorporating seven different wastes sources as filler and/or magnesia replacement in Carbonated Reactive Magnesia Cement (CRMC)-based mortars. CRMC-based mortars were designed to incorporate reactive magnesia and waste powders, by the volume ratio of three to one (sand to paste). The mortar specimens were cast by static compaction pressure and cured through accelerated carbonation curing for 24 h at controlled conditions. The performance of CRMC-based mortars was evaluated by compressive strength and microstructural examination. TG-DTG and FT-IR analysis were used to investigate the carbonation effectiveness through the specimens' volume. The results showed that the designed mortars embodying waste have achieved strength values of 8.5 to 14.6 MPa and the carbonation took place at the whole volume independently of the waste-based material used. The compressive strength results were found to be influenced by the pH of the raw materials. The study demonstrated that CRMC-based mortars have good binding properties with the different wastes investigated with the capability of adsorbing CO2 the surrounding environment into the cementitious matrix. It provides innovative solutions for the circular economy in the construction sector aside to sequestrate carbon within the built environment. |
Similar Articles
| ID | Score | Article |
|---|---|---|
15007
|
Dwivedi, A; Bollam, R; Gupta, S Enhancement of engineering properties of cement mortars with masonry construction and demolition fines via carbon dioxide utilization, storage and chemical treatment(2024) | |
| 14086
|
Sargent, P; Sandanayake, M; Law, DW; Hughes, DJ; Shifa, F; Borthwick, B; Scott, P Strength, mineralogical, microstructural and CO2 emission assessment of waste mortars comprising excavated soil, scallop shells and blast furnace slag(2024) | |
| 6564
|
Borges, PM; Schiavon, JZ; da Silva, SR; Rigo, E; Neves, A; Possan, E; Andrade, JJD Mortars with recycled aggregate of construction and demolition waste: Mechanical properties and carbon uptake(2023) | |
| 14507
|
Baggio, TF; Possan, E; Andrade, JJD Physical-chemical characterization of construction and demolition waste powder with thermomechanical activation for use as supplementary cementitious material(2024) | |
| 17596
|
Onyekwena, CC; Xue, Q; Li, Q; Umeobi, HI; Ghaffar, A; Fasihnikoutalab, MH Advances in the carbonation of MgO-based binder and CO2 utilization in the construction industry(2023)Clean Technologies And Environmental Policy, 25, 6 | |
| 27515
|
Suescum-Morales, D; Jiménez, JR; Fernández-Rodríguez, JM Use of Carbonated Water as Kneading in Mortars Made with Recycled Aggregates(2022)Materials, 15.0, 14 | |
| 10920
|
Rosado, S; Costafreda, J; Martín, D; Presa, L; Gullón, L Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties(2022)Materials, 15, 24 | |
| 9188
|
Jesus, S; Pederneiras, CM; Farinha, CB; de Brito, J; Veiga, R Reduction of the Cement Content by Incorporation of Fine Recycled Aggregates from Construction and Demolition Waste in Rendering Mortars(2021)Infrastructures, 6.0, 1 | |
| 1506
|
Cosentino, I; Liendo, F; Arduino, M; Restuccia, L; Bensaid, S; Deorsola, F; Ferro, GA Nano CaCO3 particles in cement mortars towards developing a circular economy in the cement industry(2020) | |
| 8875
|
Di Maria, A; Snellings, R; Alaerts, L; Quaghebeur, M; Van Acker, K Environmental assessment of CO2 mineralisation for sustainable construction materials(2020) |