Abstract
Port structures (quays and dykes) need an enormous consumption of materials, in particular concrete and its components, as well as sand, hence the need to develop alternative solutions using port dredging sand, estimated at thousands of tonnes through its use in the concrete that forms the blocks of the quay walls. After having demonstrated in a previous work the possibility of using the dredged sand from the port of Agadir in concrete formulations, the present work consists in showing the possibility of using the dredged sand from the port of Agadir in concrete formulations that can be used in the construction of concrete tetrapods from a concrete formulation based on dredged sand, more precisely 50% of the sand entering in the formulation is dredged sand extracted from the port of Agadir. The eventual use of dredged sand in the concrete of the tetrapods will lead to enormous gains in the quantities of sand and thus to a lower consumption of construction materials, and will also play a more important role in the preservation of the marine environment by avoiding the trapping of the dredged materials.
Highlights
Wave protection structures are structures that protect a port or part of a port against the actions of waves
The use of tetrapods in particular is very widespread, and their fabrication requires large quantities of concrete and subsequently large quantities of sand, which is why it was necessary to look for alternative solutions to substitute sand and why it is proposed subsequently to replace the sand in the concrete formulations with dredging sand extracted from the port of Agadir
By analysing the different constituents of the concrete formulations studied afterwards, as well as the results obtained, we will conclude on the possibility of finding concrete formulations based on dredging sand able to be used in concrete for tetrapods
Summary
Wave protection structures are structures that protect a port or part of a port against the actions of waves (direct attack, crossings, submersion, erosion, etc.). They are man-made structures, except for natural structures which may have the same functions, among these structures are tetrapod dikes, which are structures that provide protection against waves by placing tetrapods in a shell and a core made of riprap. Tetrapods are made of concrete, not reinforced, and have four members with a curved profile designed to minimize the impact of marine flows. The design of the structure allows the blocks to be interlocked, which, when used in masses, allows coastal protection to be reinforced or even to gain surface areas out of the water on the sea. By analysing the different constituents of the concrete formulations studied afterwards, as well as the results obtained, we will conclude on the possibility of finding concrete formulations based on dredging sand able to be used in concrete for tetrapods
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have