Next Article in Journal
Hot Gas Pressure Forming of Ti-55 High Temperature Titanium Alloy Tubular Component
Next Article in Special Issue
Effect of the Drying Method of Pine and Beech Wood on Fracture Toughness and Shear Yield Stress
Previous Article in Journal
XANES Measurements for Studies of Adsorbed Protein Layers at Liquid Interfaces
Previous Article in Special Issue
Densification of Bamboo: State of the Art
Open AccessFeature PaperEditor’s ChoiceArticle

Concrete for Precast Blocks: Binary and Ternary Combination of Sewage Sludge Ash with Diverse Mineral Residue

1
Department of Civil Engineering, Universitat d’Alacant, Carretera San Vicente del Raspeig S/N, San Vicente del Raspeig, 03690 Alicante, Spain
2
Institute of Concrete Science and Technology (ICITECH), Universitat Politècnica de València, Camino de Vera S/N, 46022 València, Spain
3
Departamento de Ingeniería Civil: Construcción, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, c/Profesor Aranguren, s/n, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Materials 2020, 13(20), 4634; https://doi.org/10.3390/ma13204634
Received: 11 September 2020 / Revised: 30 September 2020 / Accepted: 14 October 2020 / Published: 17 October 2020
This paper proposes binary and ternary combinations of sewage sludge ash (SSA) with fly ash (FA), marble dust (MD) and rice husk ash (RHA) as partial replacements of Portland cement in concretes with a similar dosage to that used in precast blocks, with very dry consistency. Several physical-mechanical tests were carried out on concrete specimens with curing ages of 28 and 90 days: density, water absorption, capillary water absorption, ultrasonic pulse velocity and compressive strength. The combinations of residues significantly improve the properties of the cementitious systems: 30% replacement of Portland cement provides strength values similar to the reference sample, showing the synergetic effects of the combination of the mineral additions. The significance of this research relies on the combined use of the mineral additions as well as the use of them for the precast block industry. The results show synergies among the additions and even that some of them showed relevant improvements when they are used in combination, performing better than when used individually. View Full-Text
Keywords: waste valorisation; concrete block; marble dust; fly ash; rice husk ash; mineral additions waste valorisation; concrete block; marble dust; fly ash; rice husk ash; mineral additions
Show Figures

Figure 1

MDPI and ACS Style

Baeza-Brotons, F.; Payá, J.; Galao, O.; Alberti, M.G.; Garcés, P. Concrete for Precast Blocks: Binary and Ternary Combination of Sewage Sludge Ash with Diverse Mineral Residue. Materials 2020, 13, 4634.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop