SAP Concrete Curing Blanket for Extended Moisture Release
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Solution Overview
Problem
Conventional concrete curing blankets fail to provide long-term curing beyond 14 days, are limited by weather conditions, and require rewetting, while also lacking effective integration of admixture chemicals for concrete treatment.
Innovation Solution
The use of Super Absorbent Polymers (SAP) with high water capacity and controlled release properties, combined with a laminated structure of nonwoven fabrics and polymer films, ensures extended curing times and efficient delivery of water and admixture chemicals to the concrete surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional curing blankets are used, then they can prevent evaporation and maintain water level in concrete, but they are unable to secure long curing times beyond 14 days
Solution Approach 1:
The curing blanket combines multiple materials with complementary properties: superabsorbent polymer (SAP) for water storage and controlled release, natural fibers for breathability and biodegradability, and a polymeric film layer for evaporation control. This composite structure enables the blanket to maintain curing effectiveness beyond 14 days by continuously supplying water to the concrete through the SAP's controlled release mechanism while preventing excessive evaporation.
Solution Approach 2:
The patent changes the water release parameter from immediate/rapid release to controlled/sustained release by incorporating superabsorbent polymer. The SAP absorbs water and releases it gradually over an extended period, transforming the temporal distribution of water delivery to match the long-term curing requirements of concrete, thereby extending effective curing time beyond conventional blanket limitations.
2Adaptability or versatility
If conventional curing blankets are used, then they can provide basic curing coverage, but they require rewetting under hot weather conditions above 30 Degrees Celsius
Solution Approach 1:
The curing blanket is designed to be self-sustaining by incorporating superabsorbent polymer that automatically absorbs and releases water in response to the concrete's curing needs and environmental conditions. The SAP reservoir provides internal water storage that eliminates the need for external rewetting operations even in hot weather above 30°C, as the blanket self-regulates water delivery based on the concrete's hydration requirements rather than requiring manual intervention.
Solution Approach 2:
The blanket is pre-loaded with water-absorbing superabsorbent polymer that is activated upon contact with water. This preliminary preparation of the water storage system ensures that the blanket has sufficient water reserves built-in before deployment, enabling it to withstand hot weather conditions without requiring subsequent rewetting operations during the curing period.
3Productivity
If conventional curing blankets with perforations are used, then water transport is enabled, but the blankets must be rewetted through these perforations to extend functioning
Solution Approach 1:
The blanket replaces the conventional perforation design with a composite structure incorporating superabsorbent polymer that provides continuous water transport through capillary action and controlled release. This eliminates reliance on discrete perforations that require periodic rewetting, as the SAP matrix creates a continuous water delivery system that maintains curing efficiency without additional water input throughout the extended curing period.
4Duration of action of stationary object
If extended curing beyond 14 days is required, then additional water must be supplied, but conventional blankets cannot provide this
Solution Approach 1:
The curing blanket incorporates an internal water reservoir system using superabsorbent polymer that automatically supplies water to the concrete throughout the extended curing period. This self-service mechanism eliminates the need for external water supply operations or manual intervention, as the blanket independently manages water delivery to maintain curing conditions for 28 days or longer without additional water input from the operator.
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 provides extended curing performance beyond 14 days, maintains optimal water content, stabilizes the blanket on concrete surfaces, and facilitates effective surface treatments, while being cost-effective and environmentally friendly.
Implementation Method 1
uses Super Absorbent Polymers (SAP) with high water capacity, which provides for the controlled release of water to maintain high degrees of water saturation at the concrete surface for extended times
Implementation Method 2
The SAP at the blanket surface creates interactions with the concrete capillaries. These interactions generate strong cohesion between the curing blanket and the concrete, which stabilizes the curing blanket's position on vertical and horizontal concrete elements.
Data Source
AI summary
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