Unreinforced Concrete Breakwater Element with Non-Circular Base
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Solution Overview
Problem
Existing protective elements for breakwaters and similar structures, made of concrete without reinforcement, face challenges in maintaining strength and durability, especially in salty environments where rusting is a concern, necessitating optimal shape design to compensate for the lack of reinforcement.
Innovation Solution
The design features a flat base with transverse projections, preferably cylindrical or conical, oriented perpendicularly, and a non-circular polygonal base shape to prevent rolling, made from concrete with additives like oil refining residues, and a production method involving heating and cooling in shuttering molds to create a permanent join.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcement is added to concrete protective elements, then strength is improved, but rusting occurs in salty environments reducing durability
Solution Approach 1:
The invention removes the reinforcement component entirely from the concrete protective element, extracting the problematic element that causes rusting while maintaining structural integrity through optimized concrete geometry and composition
2Reliability
If concrete without reinforcement is used, then rusting is prevented, but strength is insufficient
Solution Approach 1:
The invention changes the physical and chemical parameters of the concrete material itself, including composition ratios and curing conditions, to achieve high strength without requiring reinforcement
Solution Approach 2:
The concrete material is designed to achieve uniform strength distribution throughout the structure, compensating for the lack of localized reinforcement through optimized geometric configuration and material homogeneity
3Ease of manufacture
If a circular base shape is used, then ease of production is improved, but rolling resistance under water forces is reduced
Solution Approach 1:
The invention employs asymmetric or non-circular base shapes (such as rectangular, triangular, or irregular polygons) that provide inherent stability against rolling while still allowing for relatively simple formwork construction and production
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances cohesion and strength, preventing rust and ensuring stability against water forces, while the use of specific materials and production methods ensures durability and resistance to rolling, thereby effectively addressing the limitations of unreinforced concrete in harsh environments.
Implementation Method 1
The material is heated to above the melting point of the residue material from oil refining
Implementation Method 2
locally heating the joining end of a projection and the joining location on the base
Implementation Method 3
The projection and base are then brought together and the join is allowed to cool, as a result of which a permanent join is produced
Data Source
AI summary
A protective element for a breakwater or wave-retarding construction comprises a body that has at least two opposing projections. The projections are on either side of a flat base and extend transversely thereto. The periphery of the base is non-circular, so that rolling of the protective element under the influence of the beating of the waves is resisted.