Lightweight Aggregate Concrete with Regard to Bridge Structures-State of the Art
Abstract
The article presents a recognition of the current state of the art in the field of bridge structures made using concrete on lightweight aggregate. The article aims to show the reader why aggregate with low mechanical parameters and high absorption can be used in demanding bridge constructions. Divided into two parts, the first presents the history of both topics and compiles the parameters of currently used lightweight aggregates by considering the guidelines applicable in the EU, China, and America concerning bridge construction. The literature review conducted highlighted both the advantages and disadvantages of using lightweight aggregates, presented the knowledge accumulated to date in this area, and identified important research gaps regarding lightweight aggregates. The second part discusses existing or planned bridge structures, taking into account their shapes and material properties. In summary, the challenges involved in the development of lightweight aggregate for bridge structures. The results obtained from the analysis will provide a basis for further research into the development of original lightweight aggregate for bridge structures.
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