Mechanical properties of concrete using recycled aggregates obtained from old paving stones

Nowadays, construction, maintenance, reparation, rehabilitation, retrofitting, and demolition from infrastructure and buildings generate large amounts of urban waste, which usually are inadequately disposed due to high costs and technical limitations. On the other hand, the increasing demand for nat...

Full description

Autores:
Bravo German, Ana María
Bravo Gómez, Iván Daniel
Mesa, Jaime A.
Maury Ramírez, Aníbal
Tipo de recurso:
Article of journal
Fecha de publicación:
2021
Institución:
Universidad El Bosque
Repositorio:
Repositorio U. El Bosque
Idioma:
eng
OAI Identifier:
oai:repositorio.unbosque.edu.co:20.500.12495/6724
Acceso en línea:
http://hdl.handle.net/20.500.12495/6724
https://doi.org/10.3390/su13063044
Palabra clave:
Adoquines
Agregados
Sustentabilidad
Propiedades mecánicas
Paving stones
Aggregates
C&DW
Sustainability
Mechanical properties
Rights
openAccess
License
Atribución 4.0 Internacional
Description
Summary:Nowadays, construction, maintenance, reparation, rehabilitation, retrofitting, and demolition from infrastructure and buildings generate large amounts of urban waste, which usually are inadequately disposed due to high costs and technical limitations. On the other hand, the increasing demand for natural aggregates for concrete production seriously affects mountains and rivers as they are the source of these nonrenewable goods. Consequently, the recycling of aggregates for concrete is gaining attention worldwide as an alternative to reduce the environmental impacts caused by the extraction of nonrenewable goods and disposal of construction and demolition waste (C&DW). Therefore, this article describes the effect on the mechanical properties of new concrete using recycled aggregates obtained from old paving stones. Results show that replacing 50% by weight of the fine and coarse aggregate fractions in concrete with recycled aggregate does not meaningfully affect its mechanical behavior, making the use of recycled aggregates in new precast paving stones possible. Therefore, the latter can reduce environmental impacts and costs for developing infrastructure and building projects.