Quality Assessment of Mixed and Ceramic Recycled Aggregates from Construction and Demolition Wastes in the Concrete Manufacture According to the Spanish Standard

Rodríguez-Robles, Desirée; García-González, Julia; Juan-Valdés, Andrés; Pozo, Julia Mͣ Morán-del; Guerra‐Romero, M. Ignacio

doi:10.3390/ma7085843

Cited by 25 publications

(13 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Slump tests conducted over different samples integrating ceramic powder showed from 16 to 20 mm as the results for 15-30% fine aggregates substitution [42]. Dry density of specimens does not diverge from ordinary concrete, as for pore volume [43,44]. The samples studied by Lim et al [30] with quarry dust integration showed a very high specific gravity and bulk density (3560 kg/m 3 ) due to the high iron content present in the electric arc furnace slag used as coarse aggregates.…”

Section: Physical Propertiesmentioning

confidence: 97%

The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

et al. 2020

View full text Add to dashboard Cite

The concrete industry is a core element of the building sector, but it has to deal with the increasing attention on the environmental issues related to the production process: increasing energy efficiency and the adoption of alternative fuels or raw materials represent the most relevant solutions. The present work analyses physical, mechanical, and environmental performances of concrete incorporating residues derived from four main sources (construction and demolition waste, residues from waste treatment, metallurgical industry by-products, and others), as substitutes of either fine or coarse aggregates. Fine aggregates showed the highest number of alternatives and replacement level, with the relevant impact on concrete properties; coarse aggregates, however, always reach a complete replacement, with the exclusion of glass that highly affects the mechanical performance. Construction and metallurgical industry categories are the main sources of alternative materials for both the components, with ceramic and lead slag reaching a full replacement for fine and coarse aggregates.

show abstract

Section: Physical Propertiesmentioning

confidence: 97%

The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Rodriguez-Robles et al [28] studied thirteen samples of MRA with different ceramic contents from several Spanish CDW recycling plants. The ceramic constituents’ mean value was 32%, ranging between 16.51% and 64.75%.…”

Section: Materials and Experimental Detailsmentioning

confidence: 99%

Upscaling the Use of Mixed Recycled Aggregates in Non-Structural Low Cement Concrete

et al. 2016

View full text Add to dashboard Cite

This research aims to produce non-structural concrete with mixed recycled aggregates (MRA) in upscaled applications with low-cement content. Four slabs were executed with concrete made with different ratios of coarse MRA (0%, 20%, 40% and 100%), using the mix design, the mixing procedures and the facilities from a nearby concrete production plant. The analysis of the long-term compressive and splitting tensile strengths in concrete cores, extracted from the slabs, allowed the highlighting of the long-term high strength development potential of MRA incorporation. The study of cast specimens produced in situ under the same conditions as the slabs showed, firstly, that the use of MRA has a great influence on the properties related to durability, secondly, that the loss of compressive strength for total MRA incorporation relative to control concrete increases proportionally with the class strength, and, thirdly, that the mechanical properties (including Schmidt hammer results) from the concrete slabs showed no significant differences relative to the control concrete for coarse aggregates replacements up to 40%. Therefore, this upscaled experimental study supports the application of concrete with 100% coarse MRA incorporation and low cement content in non-structural civil works such as bike lanes, gutters, ground slabs, leveling surfaces, and subgrades for foundations. To the best of the authors’ knowledge, there have not been any upscaled applications of concrete with MRA and low cement content.

show abstract

“…Many studies have confirmed that RCA can be employed in different construction applications. Such applications include using RCA in the production of concrete [2][3][4], as a secondary raw material in concrete kerbs and floor blocks [5] [6], in precast concrete products [7], and as an engineering fill in the construction of roads (sub-base materials) [8]. Despite having great potential to promote environmental sustainability, the inferior performance of RCA compared to NA renders it useful in non-structural applications only.…”

Section: Introductionmentioning

confidence: 99%

Development of a Life Cycle Inventory Dataset for Recycled Concrete Aggregates in the City of Abu Dhabi

Alzard¹,

El-Hassan²,

El‐Maaddawy³

2020

Proceedings of the 4th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'19)

View full text Add to dashboard Cite

Quality Assessment of Mixed and Ceramic Recycled Aggregates from Construction and Demolition Wastes in the Concrete Manufacture According to the Spanish Standard

Cited by 25 publications

References 19 publications

The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

Upscaling the Use of Mixed Recycled Aggregates in Non-Structural Low Cement Concrete

Development of a Life Cycle Inventory Dataset for Recycled Concrete Aggregates in the City of Abu Dhabi

Contact Info

Product

Resources

About