Interlocking Formliner for Seamless Concrete Joints
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Solution Overview
Problem
Existing concrete formliners create visible seams when multiple units are interconnected, compromising the appearance of decorative concrete surfaces and making it costly to remove these seams from cured concrete.
Innovation Solution
The development of an improved formliner with interlocking portions and variable geometries that minimize or eliminate seams by nesting and overlapping edges, allowing the weight of the curable material to press adjacent formliners together, creating a seamless appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple formliners are placed together using butt joints to create large patterns, then the coverage area is increased, but visible seams are created between the formliners compromising the appearance
Solution Approach 1:
The formliner design incorporates nesting features where interlocking portions of adjacent formliners overlap and nest within each other. This nesting arrangement allows the formliners to be connected while minimizing the visibility of seams, as the overlapping portions conceal the joints between units.
Solution Approach 2:
The invention transitions from traditional butt joint connections (one-dimensional edge-to-edge contact) to a multi-dimensional overlapping connection system. The interlocking portions extend in multiple dimensions, creating a three-dimensional nested structure that eliminates visible seams while maintaining large coverage areas.
2Ease of manufacture
If traditional formliners are used with visible seams, then the manufacturing process is simple, but additional time and effort are required to remove seams from cured concrete
Solution Approach 1:
The formliner design incorporates seam-minimizing interlocking portions and nesting features during the manufacturing stage itself. This preliminary action eliminates the need for subsequent seam removal operations, as the seams are prevented from forming in the first place through the clever design of the formliner connections.
3Loss of energy
If visible seams are left in place in large-scale projects, then the project cost is reduced, but the appearance quality deteriorates
Solution Approach 1:
By implementing nesting interlocking portions in the formliner design, the system achieves seamless appearances at scale without requiring expensive post-processing. The nesting mechanism inherently conceals joints while maintaining structural integrity, providing cost-effective seamless construction for large-scale projects.
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
The solution effectively reduces or eliminates visible seams between interconnected formliners, enhancing the aesthetic finish of concrete structures by creating a natural, seamless appearance without the need for additional finishing steps, thereby saving time and cost.
Implementation Method 1
the weight of a curable material, such as concrete, against the formliners causes the formliners to be pressed against each other with greater force thereby minimizing and/or eliminating the seam between the adjacent formliners
Data Source
AI summary
A formliner and method of use are provided in order to minimize and/or eliminate visible seaming between interconnected formliners. In some embodiments, the formliner can comprise raised sections that define interrelated inner and outer dimensions. In this manner, a given portion of a first formliner can mate with another given portion of a second formliner in a nested manner. As such, edges of the interconnected formliners can be discreetly hidden along features of the formliner pattern to reduce and/or eliminate visible seaming between the formliners.