Permeable Pavement Composition with Cured Carbon Fiber Reinforcement
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Solution Overview
Problem
Pervious concrete lacks mechanical strength compared to traditional pavement materials due to the absence of fine aggregates, which are essential for embedding coarse aggregates in a cement matrix, leading to lower compressive strength and durability.
Innovation Solution
Incorporating a cured carbon fiber composite material (CCFCM) into the pavement material to enhance mechanical reinforcement and durability, maintaining or improving characteristics such as compressive strength, tensile strength, and abrasion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If pervious concrete eliminates fine aggregates to facilitate water flow, then permeability is improved, but compressive strength deteriorates
Solution Approach 1:
The patent applies composite materials by combining pervious concrete with recycled asphalt pavement (RAP) and rubber particles to create a multi-phase composite structure. The RAP provides binding and strength, while rubber particles fill voids and improve flexibility, allowing the material to simultaneously achieve high permeability and adequate compressive strength for pavement applications
Solution Approach 2:
The patent employs parameter changes by systematically varying the proportions of cement, RAP, rubber particles, and water to optimize both permeability and strength. By adjusting the water-cement ratio, RAP content, and rubber particle size distribution, the mixture achieves a balance where sufficient cement paste binds aggregates while maintaining open void structure for water infiltration
2Object-generated harmful factors
If pervious concrete uses only thin layer of cement paste to bound coarse aggregate, then permeability is improved, but mechanical properties deteriorate
Solution Approach 1:
The patent creates a composite system where RAP acts as a secondary binder supplementing the thin cement paste layer. The RAP particles interlock with coarse aggregates and provide additional bonding, while rubber particles fill voids between aggregates, creating a more robust mechanical structure that maintains permeability through its flexible, interlocked architecture
Solution Approach 2:
The patent incorporates recycled asphalt pavement (RAP) which contains reclaimed asphalt binder that copies and supplements the binding function of cement paste. This recycled binder recreates adhesive bonds between aggregates, providing enhanced mechanical properties while preserving the permeable structure
3Object-generated harmful factors
If pervious concrete lacks fine aggregate embedding, then permeability is improved, but durability deteriorates
Solution Approach 1:
The patent uses a composite mixture where RAP and rubber particles work synergistically to protect against durability issues. The RAP provides a flexible, water-resistant matrix that reduces freeze-thaw damage, while rubber particles improve elasticity and resistance to cracking, enhancing the overall durability of the permeable structure
Solution Approach 2:
The patent incorporates rubber particles that act as shock absorbers and stress distributors before damage can occur. These particles cushion against thermal expansion, freeze-thaw cycles, and mechanical impacts, preventing crack initiation and propagation that would otherwise compromise the durability of the fine aggregate-free structure
Data Source
AI summary
A permeable pavement and cured fiber composition and a related method are provided. The permeable pavement composition includes a quantity of pavement material, and a quantity of cured carbon fiber composite material (CCFCM) configured to be added to the pavement material to produce a reinforced composition having improved characteristics. An example of pavement material includes a pervious concrete material. The method includes providing a quantity of pavement material and adding a quantity of cured carbon fiber composite material to the pavement material to produce a reinforced composition having improved characteristics.