Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cost-Effective Mixtures for Concrete Pavements
In concrete pavement construction large quantities of industrial by-products could be absorbed for the benefit of economy and sustainability, especially when large infrastructure projects are in progress. In Greece, a great amount of high calcium fly ash (12 million tons per year) and steel slag (2.5 million tons per year) is produced. The current utilization rate of the above by-products is relatively low. Before their utilization, the local industrial by-products should be tested and used properly to achieve optimum concrete mixtures for pavements. In this paper, local steel slag is used as aggregate in combination with a cement-fly ash binding system for the production of concrete mixtures whose strength ranges from 20 to 70 MPa. Apart from compressive strength, flexural tensile strength, elastic modulus of elasticity, fracture toughness, fatigue strength, and resistance to abrasion have been measured in a series of concrete compositions. Based on the results, it seems feasible to design and apply low-cost concrete mixtures for pavements, since they may contain considerable amount of by-products for which the main cost is their transportation. The technical benefits related to their use in concrete are also presented.
Cost-Effective Mixtures for Concrete Pavements
In concrete pavement construction large quantities of industrial by-products could be absorbed for the benefit of economy and sustainability, especially when large infrastructure projects are in progress. In Greece, a great amount of high calcium fly ash (12 million tons per year) and steel slag (2.5 million tons per year) is produced. The current utilization rate of the above by-products is relatively low. Before their utilization, the local industrial by-products should be tested and used properly to achieve optimum concrete mixtures for pavements. In this paper, local steel slag is used as aggregate in combination with a cement-fly ash binding system for the production of concrete mixtures whose strength ranges from 20 to 70 MPa. Apart from compressive strength, flexural tensile strength, elastic modulus of elasticity, fracture toughness, fatigue strength, and resistance to abrasion have been measured in a series of concrete compositions. Based on the results, it seems feasible to design and apply low-cost concrete mixtures for pavements, since they may contain considerable amount of by-products for which the main cost is their transportation. The technical benefits related to their use in concrete are also presented.
Cost-Effective Mixtures for Concrete Pavements
Papayianni, I. (Autor:in) / Anastasiou, E. (Autor:in)
Airfield and Highway Pavements Specialty Conference 2006 ; 2006 ; Atlanta, Georgia, United States
Airfield and Highway Pavement ; 1008-1017
28.04.2006
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Cost-Effective Mixtures for Concrete Pavements
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Designing concrete mixtures for pavements
| Engineering Index Backfile | 1940