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Recycled Aggregate Concrete Performance
Research Guide
What is Recycled Aggregate Concrete Performance?
Recycled Aggregate Concrete Performance refers to the mechanical properties, durability, and overall behavior of concrete produced using recycled aggregates from construction waste as a partial or full replacement for natural aggregates.
Recycled Aggregate Concrete Performance encompasses the evaluation of concrete's strength, durability, and sustainability when incorporating recycled coarse aggregates, addressing construction waste management. The field includes 43,732 works with a focus on microstructural analysis and environmental impact assessment. Key studies demonstrate that production processes and replacement levels significantly affect concrete properties.
Topic Hierarchy
Research Sub-Topics
Mechanical Properties Recycled Aggregate Concrete
Studies quantify compressive, tensile, and flexural strengths of RAC under varying replacement ratios and curing. Fracture mechanics models predict performance degradation mechanisms.
Durability Performance Recycled Aggregate Concrete
Researchers assess chloride penetration, carbonation, and freeze-thaw resistance in RAC via accelerated testing. Microstructural analyses link old mortar adhesion to durability losses.
Microstructural Analysis Recycled Concrete
SEM, XRD, and MIP characterize interfacial transition zones and porosity in RAC. Studies correlate microstructure with macro-properties and aggregate treatment effects.
Sustainability Assessment Recycled Aggregate Concrete
LCA evaluates carbon footprint, energy use, and waste diversion of RAC production versus natural aggregate. Techno-economic models assess scalability in construction.
High Performance Recycled Aggregate Concrete
Investigations develop HPC mixes with recycled aggregates using fibers, silica fume, and optimized gradation. Performance tests validate ultra-high strength and ductility applications.
Why It Matters
Recycled Aggregate Concrete Performance supports waste reduction in construction by enabling the reuse of demolition materials, reducing reliance on natural aggregates and lowering environmental impacts. Miren Etxeberria et al. (2007) showed in "Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete" that varying recycled coarse aggregate content from 20% to 100% influences compressive strength and water absorption, with optimized processes achieving properties comparable to natural aggregate concrete. This applies to sustainable building projects, as referenced alongside works like "The greening of the concrete industry" by Christian Meyer (2009), promoting greener practices in industries facing aggregate shortages.
Reading Guide
Where to Start
"Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete" by Miren Etxeberria et al. (2007) is the starting point for beginners, as it directly quantifies the effects of replacement levels (20-100%) and processes on key properties like strength and absorption, providing empirical data specific to recycled aggregates.
Key Papers Explained
Miren Etxeberria et al. (2007) in "Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete" establishes baseline performance variations with recycled aggregates, building on Adam Matthew Neville's (1968) "Properties of concrete" which details general aggregate influences on strength, durability, and elasticity. Christian Meyer (2009) in "The greening of the concrete industry" extends this to sustainability contexts, while Steven H. Kosmatka et al. (1991) in "Design and Control of Concrete Mixtures" offers mixture design frameworks applicable to recycled variants. Hajime Okamura and Masahiro Ouchi (2003) in "Self-Compacting Concrete" connects to potential adaptations for recycled self-compacting mixes.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Research emphasizes optimizing production for higher recycled content while maintaining durability, as per Etxeberria et al. (2007), with connections to sustainable binders in Turner and Collins (2013) and Provis (2017). No recent preprints available, so frontiers involve integrating findings from Meyer (2009) with low-carbon alternatives like Scrivener et al. (2017). Focus remains on microstructural analysis for performance prediction.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Properties of concrete | 1968 | Virtual Defense Librar... | 5.5K | ✓ |
| 2 | Carbon dioxide equivalent (CO2-e) emissions: A comparison betw... | 2013 | Construction and Build... | 2.2K | ✕ |
| 3 | Alkali-activated materials | 2017 | Cement and Concrete Re... | 1.8K | ✕ |
| 4 | Costs and carbon emissions for geopolymer pastes in comparison... | 2011 | Journal of Cleaner Pro... | 1.8K | ✕ |
| 5 | Self-Compacting Concrete | 2003 | Journal of Advanced Co... | 1.8K | ✓ |
| 6 | Influence of amount of recycled coarse aggregates and producti... | 2007 | Cement and Concrete Re... | 1.7K | ✕ |
| 7 | Sustainable cement production—present and future | 2011 | Cement and Concrete Re... | 1.6K | ✕ |
| 8 | Design and Control of Concrete Mixtures | 1991 | — | 1.6K | ✕ |
| 9 | The greening of the concrete industry | 2009 | Cement and Concrete Co... | 1.5K | ✕ |
| 10 | Calcined clay limestone cements (LC3) | 2017 | Cement and Concrete Re... | 1.5K | ✓ |
Frequently Asked Questions
What factors influence the properties of recycled aggregate concrete?
The amount of recycled coarse aggregates and the production process are primary factors affecting properties such as compressive strength and durability. Miren Etxeberria et al. (2007) in "Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete" found that higher replacement levels increase water absorption but can be mitigated by specific processing methods. These variations impact mechanical behavior and suitability for structural use.
How does recycled aggregate concrete compare to ordinary Portland cement concrete?
Recycled aggregate concrete often exhibits reduced strength and higher porosity compared to natural aggregate concrete due to aggregate quality. Studies like Adam Matthew Neville's "Properties of concrete" (1968) provide baselines for aggregate effects on fresh and hardened concrete properties. Production optimizations, as in Etxeberria et al. (2007), allow performance close to conventional concrete.
What are the sustainability benefits of recycled aggregate concrete?
It promotes construction waste management and reduces environmental impact by diverting demolition waste from landfills. "The greening of the concrete industry" by Christian Meyer (2009) highlights its role in sustainable practices. This aligns with broader efforts in papers like "Carbon dioxide equivalent (CO2-e) emissions: A comparison between geopolymer and OPC cement concrete" by Louise K. Turner and Frank Collins (2013).
What mechanical properties are most affected in recycled aggregate concrete?
Compressive strength, elasticity, shrinkage, and creep are notably influenced by recycled aggregates. "Properties of concrete" by Adam Matthew Neville (1968) details how aggregate properties govern these behaviors in hardened concrete. Etxeberria et al. (2007) confirmed that recycled aggregate amount directly impacts strength development.
How is durability assessed in recycled aggregate concrete?
Durability evaluation covers resistance to environmental factors, as outlined in Neville (1968) under chapters on durability and temperature effects. Recycled variants show potential weaknesses in water absorption and permeability, per Etxeberria et al. (2007). Testing follows standard concrete mixture design principles from "Design and Control of Concrete Mixtures" by Steven H. Kosmatka et al. (1991).
Open Research Questions
- ? How can production processes be optimized to minimize strength loss beyond 50% recycled coarse aggregate replacement?
- ? What microstructural changes occur in recycled aggregate concrete that affect long-term creep and shrinkage?
- ? Which admixture combinations best enhance durability of high-recycled aggregate content concrete?
- ? How do recycled aggregates interact with alkali-activated binders for improved performance?
- ? What are the thresholds for recycled aggregate quality to match natural aggregate concrete in self-compacting applications?
Recent Trends
The field has accumulated 43,732 works on recycled aggregate concrete performance, with sustained interest in mechanical behavior and durability as per top-cited papers like Etxeberria et al.
2007No growth rate data or recent preprints/news available, indicating stable research emphasis on waste management and sustainability applications from established studies such as Meyer .
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