Resin Concrete Deterioration Model via Controlled Hydrolysis

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Solution Overview

Problem

There is a lack of methods for producing a resin concrete deterioration model and predicting the deterioration of resin concrete, making it difficult to assess the mechanical strength and safety of existing structures and design new structures considering strength reduction over time.

Innovation Solution

A method involving the production of a resin concrete deterioration model by mixing a thermosetting resin, calcium carbonate, and aggregate, followed by adding water and kneading the mixture to simulate different material ages, allowing for strength evaluation and correlation formula development to predict target strengths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If samples are collected from existing resin concrete structures for strength evaluation, then accurate strength assessment can be obtained, but the structure may be damaged or safety compromised

Engineering Contradiction:

Improvestrength evaluation accuracyVSAvoidstructure safety

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent creates artificial resin concrete samples that replicate the chemical composition and deterioration characteristics of existing structures. By synthesizing samples with controlled water content to simulate hydrolysis at different ages, the invention provides copies that can be tested without compromising the original structure's safety or integrity

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent performs preliminary creation of deterioration models before actual strength evaluation is needed. By pre-simulating various deterioration states through controlled water addition during sample preparation, the system establishes reference data in advance that can be used for evaluating existing structures without requiring physical sample collection

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If samples are collected from small or inaccessible structures, then strength evaluation becomes possible, but the structures are unsuitable for sampling due to size or safety constraints

Engineering Contradiction:

Improvestrength evaluation capabilityVSAvoidapplicability to small structures

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent creates artificial samples in a controlled laboratory setting that replicate the properties of resin concrete from structures of any size. This copying approach eliminates the need to physically access or sample from the original structure, making the evaluation method applicable to small, inaccessible, or sensitive structures

Inventive Principle:

Principle #26Copying

3Duration of action of moving object

If resin concrete structures are designed assuming strength reduction over time, then long-term performance can be predicted, but accurate prediction requires established deterioration models which do not yet exist

Engineering Contradiction:

Improvelong-term strength predictionVSAvoiddeterioration model complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The patent uses water content as a controllable parameter to simulate the aging process. By varying the water content during sample preparation, the invention creates models representing different deterioration stages without requiring complex multi-parameter models, achieving accurate long-term strength prediction through a single primary variable

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent leverages the chemical phase transition of hydrolysis in the thermosetting resin. By controlling water content, the invention accelerates or simulates the hydrolysis process that naturally occurs over time, allowing rapid creation of deterioration models that accurately represent long-term behavior without requiring years of actual aging

Inventive Principle:

Principle #36Phase transitions

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

Enables the creation of a resin concrete deterioration model that reproduces the mechanical strength and fracture characteristics of aged resin concrete, facilitating safety evaluations and design considerations for structures, even when sample collection is not feasible.

Implementation Method 1

it is conventionally assumed that when an unsaturated polyester resin is used for resin concrete, the resin may be hydrolyzed to lower the strength

Methodology Applied

Scientific EffectHydrolysis: Hydrolysis

Data Source

PatentUS20240264140A1Manufacturing method of resin concrete degradation model, prediction method of resin concrete degradation, and resin concrete degradation model

Publication Date: 2024.08.08 NIPPON TELEGRAPH & TELEPHONE CORP

AI summary

A method of producing a resin concrete deterioration model, a method of predicting deterioration of resin concrete, and a resin concrete deterioration model are provided. The method of producing a resin concrete deterioration model adds water to a precursor of resin concrete containing a thermosetting resin, calcium carbonate, and aggregate and kneads the mixture. The resin concrete deterioration model 1 includes a thermosetting resin, calcium carbonate, an aggregate, and water.