The applicability of construction and demolition waste components for radionuclide sorption

Jelić, Ivana; Šljivić-Ivanović, Marija Z.; Dimović, Slavko; Antonijević, Dragi; Jović, Mihajlo D.; Mirković, Miljana; Smičiklas, Ivana

doi:10.1016/j.jclepro.2017.09.220

Cited by 32 publications

(48 citation statements)

References 46 publications

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“…Consequently, these properties cause the mechanical properties of RCA to be inferior to that of NA, which limits the application of recycled concrete in civil engineering. Although the mechanical properties of recycled aggregates are poor, different scholars, institutions, and countries have been applying recycled aggregates into structures through rational design and experiment in recent years, and in some cases, good results have been achieved [17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Seismic Performance of Recycled Concrete Hollow Block Masonry Walls

et al. 2019

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This paper aims to manufacture recycled concrete hollow block (RCHB) which can be used for the masonry structure with seismic requirements. Five RCHB masonry walls were tested under cyclic loading to evaluate the effect of the axial compression stress, aspect ratio, and the materials of structural columns on the seismic performance. Based on the test results, the failure pattern, hysteresis curves, lateral drift, ductility, stiffness degradation, and the energy dissipation of the specimens were analyzed in detail. The results showed that with the increase of aspect ratios, the ductility of RCHB masonry walls increased, but the horizontal bearing capacity and energy dissipation of RCHB masonry walls decreased. With the increase of compressive stress, the bearing capacity and energy dissipation performance of RCHB masonry walls were improved, and the stiffness degraded slowly. The results also demonstrated that the RCHB masonry walls with structural columns, depending on whether the structural columns were prepared by ordinary concrete or recycled concrete, could increase the bearing capacity, ductility, and energy dissipation of specimens. The research confirmed that RCHB masonry walls could meet the seismic requirements through thoughtful design. Therefore, this study provided a new cleaner production for the utilization of construction waste resources.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Seismic Performance of Recycled Concrete Hollow Block Masonry Walls

et al. 2019

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“…However, there is also a high potential of using CSW for eco-friendly environmental applications as an adsorbent for uptake pollutants in aqueous media [2,4]. There are few works reported in the literature that uses CSW as adsorbent [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Although activated carbon is an excellent adsorbent, new adsorbent materials need to be developed. CSW is a very cheap waste and can be used as a useful and efficient adsorbent [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Jelić et al, 2018 [5], used samples of waste concrete, and façade for the adsorption of Co 2+ , Ni 2+ , and Sr 2+ , however the values of sorption capacity obtained for all these 3 elements were very low as 5−102 μg g −1 Sr 2+ , 6.6 -26.2 μg g −1 Co 2+ , and 21−30 μg g −1 Ni 2+ . These values of sorption capacity are minimal for being used in a real application.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption and recovery of phosphate from aqueous solution by the construction and demolition wastes sludge and its potential use as phosphate-based fertiliser

Reis

Cazacliu²,

Correa

et al. 2020

Journal of Environmental Chemical Engineering

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This study aimed to investigate phosphate removal from aqueous effluents by an inorganic sludge from the inert part of construction and demolition wastes (CSW) as adsorbent. It is also discussed the application of the loaded P adsorbent as potential fertiliser. The CSW was also thermally treated at 800°C for 2 h (CSW-T), and its influence in the P removal was also investigated. The characterisation techniques highlighted low porosity on CSW and CSW-T adsorbents and that they are mainly formed by oxides which could enhance the P uptake and recovery. In pH experiments, P adsorption increased as initial pH increased, at pH higher than 7.8 the P removal sharply increased due to the formation of calcium phosphate precipitate. The mechanism of the P adsorption onto CSW indicated that the process was mainly controlled by chemical bonding or chemisorption. The results showed that CSW-T was more effective for P removal in comparison to CSW based on the Liu isotherm, the maximum sorption capacity attained was 24.04 (CSW) and 57.64 mg g −1 (CSW-T). Based on the Avrami's kinetic models, the time for attaining 95% of saturation was 212.6 (CSW), and 136.6 min (CSW-T). CSW and CSW-T showed the highest phosphate-removal performance among many adsorbents found in the literature; therefore, this kind of waste can be used widely as an inexpensive phosphate-recovery adsorbent. Besides, the P loaded adsorbents could be used as potential fertilisers which could be an interesting and efficient way of reuse for this waste.

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“…Construction and demolition waste (CDW) can be defined as a solid waste that is generated during the construction, maintenance, demolition and deconstruction of buildings and civil works. CDW mainly consist of mineral components, such as crushed concrete, bricks, tiles and asphalt, as well as plastics, wood, metals, glass and cardboard [ 6 ]. Even though there is a high potential for recycling and re-use of CDW, there is still a lack of confidence in the quality of CDW recycled materials [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Prefabricated Geopolymeric Façade Cladding Panels Made from Large Fractions of Recycled Construction and Demolition Waste

et al. 2020

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The construction and demolition sector is one of the biggest consumers of natural resources in the world and consequently, one of the biggest waste producers worldwide. The proper management of construction and demolition waste (CDW) can provide major benefits for the construction and recycling industry. However, the recycling rate of CDW is relatively low, as there is still a lack of confidence in the quality of recycled CDW materials. Therefore, new research projects are looking for innovative solutions within recycling of CDW in order to overcome uncertainties currently associated with the use of construction products made from recycled or re-used CDW. In this paper, a “cradle-to-cradle” life cycle assessment (LCA) study has been conducted to investigate the environmental performance of the prefabricated geopolymeric façade cladding panels made from large fractions of CDW. The LCA results indicate that the majority of the environmental burden arises within the manufacturing stage; however, the environmental burden can be reduced with simple optimisation of the manufacturing process. Furthermore, the environmental impact of the prefabricated geopolymeric façade cladding panels is generally lower than the environmental burden associated with the façade cladding panels made from virgin materials.

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The applicability of construction and demolition waste components for radionuclide sorption

Cited by 32 publications

References 46 publications

Experimental Study on the Seismic Performance of Recycled Concrete Hollow Block Masonry Walls

Experimental Study on the Seismic Performance of Recycled Concrete Hollow Block Masonry Walls

Adsorption and recovery of phosphate from aqueous solution by the construction and demolition wastes sludge and its potential use as phosphate-based fertiliser

Life Cycle Assessment of Prefabricated Geopolymeric Façade Cladding Panels Made from Large Fractions of Recycled Construction and Demolition Waste

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