Abstract
This research aimed to determine the durability and strength of an old concrete built-in arch bridge based on selected mechanical, physical, and chemical properties of the concrete. The bridge was erected in 1925 and is located in Jagodnik (northern Poland). Cylindrical specimens were taken from the side ribs connected to the top plate using a concrete core borehole diamond drill machine. The properties of the old concrete were compared with the present and previous standard requirements and guidelines. The laboratory testing program consisted of the following set of tests: measurements of the depth of carbonated zone and dry density, water absorption tests, determination of concrete compressive strength and frost resistance, determination of modulus of elasticity, measurement of the pH value, determination of water-soluble chloride salt and sulfate ion content, and X-ray diffraction analyses. Large variations in the cylindrical compressive strength (14.9 to 22.0 MPa), modulus of elasticity (17,900 to 26,483 MPa), density (2064 to 2231 kg/m3), and water absorption (3.88 to 6.58%) were observed. In addition to the experiments, a brief literature survey relating to old concrete properties was also conducted. This paper can provide scientists, engineers, and designers an experimental basis in the field of old concrete built-in bridge construction.
Highlights
This research aimed to determine the durability and strength of an old concrete builtin arch bridge based on selected mechanical, physical, and chemical properties of the concrete
This paper provides engineers, and designers an experimental mechanical, and chemical properties of 95-year-old concrete
The chemical of calcium hydroxide dissolved in pore water with atmospheric
Summary
This research aimed to determine the durability and strength of an old concrete builtin arch bridge based on selected mechanical, physical, and chemical properties of the concrete. This paper can provide scientists, engineers, and designers an experimental basis in the field of old concrete built-in bridge construction. Reinforced concrete is a material used in the construction of a wide range of civil and engineering structures. It is possible to find many interesting descriptions related to the process of testing and repairing old concrete structures. Selected structural material properties were determined, e.g., the strength class was found to be greater than C30/37 and the average modulus of elasticity was 30 GPa. Wolert et al [5] investigated an 11-span flat slab reinforced concrete bridge constructed between 1914 and 1916 that goes over Barnes Slough and Jenkins Creek. Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations
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