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Abstract: Increasing amounts of sustainable concretes are being used as society becomes more aware of the environment. This paper attempts to evaluate the properties of precast concrete elements formed with recycled coarse aggregate and low clinker content cement using recycled additions. To this end, six different mix proportions were characterized: a reference concrete; 2 concretes with 25%wt. and 50%wt. substitution of coarse aggregate made using mixed construction and demolition wastes; and others with recycled cement with low clinker content. The compressive strength, the elastic modulus, and the durability indicator decrease with the proportions of recycled aggregate replacing aggregate, and it is accentuated with the incorporation of recycled cement. However, all the precast elements tested show good performance with slight reduction in the mechanical properties. To confirm the appropriate behaviour of New Jersey precast barriers, a test that simulated the impact of a vehicle was carried out.
Fuente: Applied Sciences, 2020, 10(19), 6655
Publisher: MDPI
Publication date: 01/10/2020
No. of pages: 14
Publication type: Article
DOI: 10.3390/app10196655
ISSN: 2076-3417
Spanish project: BIA2013-48876-C3-2-R
Consult in UCrea Read publication
CARLOS THOMAS GARCIA
ANA ISABEL CIMENTADA HERNANDEZ
CANTERO, BLAS
SÁEZ DEL BOSQUE, F.
JUAN ANTONIO POLANCO MADRAZO
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