Mastic Asphalt Composition for Low-Temperature Paving
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Solution Overview
Problem
Conventional mastic asphalt compositions require high-temperature heating for production and paving, leading to inefficiencies, adhesion issues, and limited domestic production capabilities due to the need for specialized equipment and imported materials, resulting in high costs and environmental concerns.
Innovation Solution
A high-grade mastic asphalt composition comprising natural asphalt mix, styrene isoprene styrene, polymer resins, aggregates, thermosensitive reinforcing agents, nanoceramic particles, and other additives, allowing for on-site production and paving without high-temperature heating, enhancing pavement performance and ease of construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If high-temperature heating (230-250°C) is used for mastic asphalt production, then the asphalt achieves proper fluidity and workability, but the steel deck plate deforms and excessive heat remains in the pavement causing swelling and reduced adhesion
Solution Approach 1:
The patent changes the temperature parameter from conventional 230-250°C to a lower temperature range (150-200°C) by incorporating thermosensitive reinforcing agents and polymer modifiers that maintain asphalt fluidity at reduced temperatures, thereby preventing steel deck plate deformation and pavement swelling while preserving workability
Solution Approach 2:
The patent creates a composite asphalt composition combining natural asphalt, polymer modifiers (styrene-butadiene resin, acrylic resin), and thermosensitive reinforcing agents that work together to provide both fluidity at lower temperatures and thermal stability, eliminating the need for high-temperature heating
2Productivity
If conventional mastic asphalt is produced and transported long distances, then production facilities can be located centrally, but energy consumption increases and pollutants are emitted
Solution Approach 1:
The patent enables decentralized production by formulating mastic asphalt with lower production temperature requirements (150-200°C), allowing local production facilities to be established near construction sites rather than requiring centralized production and long-distance transport, thus reducing energy consumption and emissions
3Temperature
If specialized equipment (cookers) is used for mastic asphalt production, then high-temperature heating can be achieved, but construction time increases and costs rise
Solution Approach 1:
The patent replaces the mechanical heating system (cookers requiring 230-250°C) with a chemical composition approach using thermosensitive reinforcing agents and polymer modifiers that enable the asphalt to achieve proper consistency at lower temperatures (150-200°C), eliminating the need for specialized high-temperature equipment and reducing construction time
4Reliability
If TLA (Trinidad Lake Asphalt) is used for mastic asphalt production, then the asphalt achieves good waterproofing properties, but the material is highly expensive and imported from foreign countries
Solution Approach 1:
The patent changes the material composition parameters by using domestic natural asphalt blends combined with polymer modifiers and thermosensitive reinforcing agents, achieving comparable or superior waterproofing performance at lower cost than imported TLA, thereby reducing material expenses while maintaining reliability
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 composition enables efficient, on-site paving with improved adhesion, durability, and reduced environmental impact, achieving high pavement performance without the need for specialized equipment or high-temperature heating, thus addressing the inefficiencies and limitations of conventional methods.
Implementation Method 1
1 to 20 parts by weight of a thermosensitive reinforcing agent
Implementation Method 2
10 to 40 parts by weight of a nanoceramic particle
Implementation Method 3
10 to 60 parts by weight of at least one polymer resin selected from the group consisting of vinyl ester resin, polyester resin, acryl resin, epoxy resin, acryl-epoxy resin, and urethane resin
Implementation Method 4
5 to 40 parts by weight of styrene isoprene styrene
Data Source
AI summary
A high-grade mastic asphalt composition includes by weight: 100 parts of a natural asphalt mix; 5 to 40 parts of styrene isoprene styrene; 10 to 60 parts of at least one polymer resin; 10 to 1,000 parts of an aggregate; 1 to 20 parts of a thermosensitive reinforcing agent; 10 to 60 parts of a filler; 10 to 40 parts of a nanoceramic particle; 1 to 15 parts of a surfactant; 0.1 to 5 parts of an antioxidant; 0.5 to 5 parts of a stabilizer; 0.5 to 10 parts of a performance enhancer; 2 to 20 parts by weight of a fiber; 10 to 50 parts of a cohesive resin; 2 to 10 parts of an antisagging agent; and 1 to 5 parts of a compatibilizer. The consolute high-grade mastic asphalt composition has a high pavement performance and makes its conveyance and paving construction easier without using a cooker.