Grey Model Research Based on the Pore Structure Fractal and Strength of NMR Aeolian Sand Lightweight Aggregate Concrete
Sign Up to like & getrecommendations! Published in 2019 at "JOM"
DOI: 10.1007/s11837-019-03887-w
Abstract: In the present study, macro-mechanical and micro-pore structure tests were conducted on aeolian sand lightweight aggregate concrete. A fractal theory was used to characterize the distributions of the pore radii of the concrete. Then, the… read more here.
Keywords: sand lightweight; aeolian sand; aggregate concrete; lightweight aggregate ... See more keywords
Experimental Study on Bond Behavior between Section Steel and RAC under Full Replacement Ratio
Sign Up to like & getrecommendations! Published in 2019 at "KSCE Journal of Civil Engineering"
DOI: 10.1007/s12205-019-0702-1
Abstract: Nine specimens of steel reinforced recycled concrete are designed to explore the effect of four factors as the cover thickness of section steel, the embedded length of section steel, the recycled aggregate concrete strength, and… read more here.
Keywords: steel; section steel; aggregate concrete; bond ... See more keywords
Effect of Molasses and Water–Cement Ratio on Properties of Recycled Aggregate Concrete
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-019-04117-w
Abstract: Despite recycled aggregate concrete (RAC) presenting economic and environmental benefits, it has inferior fresh and hardened state properties. Recycled coarse aggregates (RCA) obtained from demolished concrete demand more water to satisfy their absorption capacity than… read more here.
Keywords: properties recycled; water; cement; recycled aggregate ... See more keywords
Flexural Capacity of Reinforced Recycled Aggregate Concrete Columns Under Seismic Loading: Database and a Simplified Model
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DOI: 10.1007/s40999-019-00477-4
Abstract: This paper proposes a simplified envelop curve model for evaluation of capacity curve of reinforced recycled aggregate concrete (RAC) columns subjected to seismic loads. A seismic research database containing 53 reinforced RAC columns was established… read more here.
Keywords: reinforced recycled; columns seismic; recycled aggregate; database ... See more keywords
Creep, shrinkage and permeation characteristics of geopolymer aggregate concrete: long-term performance
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DOI: 10.1007/s43452-020-00119-w
Abstract: The long-term impact on creep, drying shrinkage, and permeation characteristics of an innovative concrete produced with manufactured geopolymer coarse aggregate (GPA) has been investigated and compared with quarried Basalt aggregate concrete. Microstructure and pore-structure development… read more here.
Keywords: long term; concrete; gpa concrete; shrinkage ... See more keywords
Coral aggregate concrete: Numerical description of physical, chemical and morphological properties of coral aggregate
Sign Up to like & getrecommendations! Published in 2019 at "Cement and Concrete Composites"
DOI: 10.1016/j.cemconcomp.2019.03.016
Abstract: Abstract With the increasing development of oceanic resources, coral aggregate concrete has wide potentials in the construction of islands and reefs, as well as the flood embankment, road and airport in coastal areas. However, the… read more here.
Keywords: coral aggregates; physical chemical; coral aggregate; aggregate concrete ... See more keywords
Creep model of concrete with recycled coarse and fine aggregates that accounts for creep development trend difference between recycled and natural aggregate concrete
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DOI: 10.1016/j.cemconcomp.2019.05.013
Abstract: Abstract A new creep model of recycled aggregate concrete (RAC) incorporated with coarse recycled aggregates (CRA) and fine recycled aggregates (FRA) is proposed in this paper. The model accounts for the difference in the creep… read more here.
Keywords: aggregate concrete; development trend; creep development; creep ... See more keywords
Influence of cracking on the capillary absorption and carbonation of structural lightweight aggregate concrete
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DOI: 10.1016/j.cemconcomp.2019.103382
Abstract: Abstract This paper aims to study the influence of the presence of cracks on the capillary absorption and carbonation resistance of structural lightweight aggregate concrete (LWAC) and to compare its behaviour to normal weight concrete.… read more here.
Keywords: absorption carbonation; carbonation; structural lightweight; capillary absorption ... See more keywords
Static and cyclic response of low-strength recycled aggregate concrete strengthened using fiber-reinforced polymer
Sign Up to like & getrecommendations! Published in 2019 at "Composites Part B: Engineering"
DOI: 10.1016/j.compositesb.2018.10.002
Abstract: Abstract Concrete production using recycled aggregates (RAs) from construction and demolition waste is known to have a lower strength performance than natural aggregate concrete. Many studies have been carried out to improve the strength properties… read more here.
Keywords: fiber reinforced; aggregate concrete; strength; recycled aggregate ... See more keywords
Efficiency of GFRP bars and hoops in recycled aggregate concrete columns: Experimental and numerical study
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DOI: 10.1016/j.compstruct.2020.112986
Abstract: Abstract To develop a sustainable environment and to alleviate the problems of the large annual production of construction and demolition waste, the recycled aggregate concrete (RAC) has been used in the columns reinforced with glass… read more here.
Keywords: columns; concrete columns; aggregate concrete; gfrp bars ... See more keywords
Simulation of seismic behavior of square recycled aggregate concrete – filled steel tubular columns
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DOI: 10.1016/j.conbuildmat.2017.05.013
Abstract: Abstract Concrete-filled steel tubes can improve the mechanical behavior in terms of strength, stiffness, ductility and energy dissipation for the initial deficiencies of recycled aggregate concrete compared with natural aggregate concrete. The firsthand seismic performance… read more here.
Keywords: concrete filled; filled steel; concrete; recycled aggregate ... See more keywords