Strength improvement of recycled aggregate concrete through silicon rich char derived from organic waste

@article{Akhtar2018StrengthIO,
  title={Strength improvement of recycled aggregate concrete through silicon rich char derived from organic waste},
  author={Ali Akhtar and Ajit K. Sarmah},
  journal={Journal of Cleaner Production},
  year={2018}
}
Abstract Recycled aggregates obtained from construction and demolition waste is known to have lower strength performance than natural aggregate concrete. Several studies have been conducted during the past decade to reduce the adverse effects of recycled aggregates on the strength properties of recycled aggregate concrete. The present study is in continuation of the similar approach, contributing towards the improvement of the recycled aggregate concrete properties with waste derived silicon… 
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References

SHOWING 1-10 OF 43 REFERENCES
Use of recycled concrete aggregate in fly-ash concrete
Abstract Nowadays, environmentally friendly building is becoming a crucial issue in construction industry. The course towards sustainable concrete involves mainly minimizing the environmental impact
Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach
Abstract Owing to the shortage of space for land reclamation in Hong Kong, it is difficult to dispose of tons of masonry waste generated daily from construction activities. Adoption of recycled
Comparisons of natural and recycled aggregate concretes prepared with the addition of different mineral admixtures
Abstract This paper presents the results of a laboratory study on the performance of natural and recycled aggregate concrete prepared with the incorporation of different mineral admixtures including
Mechanical characterization of high performance concrete prepared with recycled aggregates and silica fume from precast industry
Abstract The growth of the precast industry has led to the emergence of waste with enormous potential for recycling, given the strict quality control of these companies and the need of
Effect of incorporation of high volume of recycled concrete aggregates and fly ash on the strength and global warming potential of concrete
Abstract This study presents the effects of using supplementary cementing materials and recycled concrete aggregates (RCA) in concrete, with emphasis on the ability of using high volumes of fly ash
EFFECT OF SILICA FUME ON RECYCLED AGGREGATE CONCRETE
The ever increasing concrete usage has raised concerns over its environmental impact because when reaching the end of the design life, concrete waste usually ends up as landfill. This creates a
Properties of sustainable concrete containing fly ash, slag and recycled concrete aggregate
Abstract The suitability of using more “sustainable” concrete for wind turbine foundations and other applications involving large quantities of concrete was investigated. The approach taken was to
Effects of using recycled concrete aggregates on the shrinkage of high performance concrete
Over the past twenty years the use of Recycled Concrete Aggregate (RCA) has been mostly limited to normal-strength concretes. However, satisfactory properties have been found in previous studies
Self-consolidating concrete using recycled concrete aggregate and high volume of fly ash, and slag
Abstract This paper studies the effect of using recycled concrete aggregate (RCA) on the properties of self-consolidating concrete (SCC). Twenty concrete mixtures with different mixtures of fly ash
Properties of concrete containing recycled concrete aggregate of preserved quality
Abstract This study focuses on evaluating recycled concrete aggregate (RCA) of high quality produced through a protocol that preserves the original properties of the concrete to be recycled. Concrete
...
1
2
3
4
5
...