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Open AccessArticle

Industrial Low-Clinker Precast Elements Using Recycled Aggregates

1
LADICIM (Laboratory of Materials Science and Engineering), University of Cantabria E.T.S. de Ingenieros de Caminos, Canales y Puertos, Av. Los Castros 44, 39005 Santander, Spain
2
School of Civil Engineering, University of Extremadura, Institute for Sustainable Regional Development (INTERRA), Avda. de la Universidad, s/n, 10003 Cáceres, Spain
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(19), 6655; https://doi.org/10.3390/app10196655
Received: 31 August 2020 / Revised: 15 September 2020 / Accepted: 21 September 2020 / Published: 23 September 2020
(This article belongs to the Special Issue High-Performance Eco-Efficient Concrete)
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. View Full-Text
Keywords: recycled concrete; low clinker cement; precast; mechanical properties; physical properties; New Jersey barriers recycled concrete; low clinker cement; precast; mechanical properties; physical properties; New Jersey barriers
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MDPI and ACS Style

Thomas, C.; Cimentada, A.I.; Cantero, B.; Sáez del Bosque, I.F.; Polanco, J.A. Industrial Low-Clinker Precast Elements Using Recycled Aggregates. Appl. Sci. 2020, 10, 6655.

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