Creep strain of recycled aggregate concrete

Lye, Chao-Qun; Dhir, Ravindra K.; Ghataora, Gurmel S.; Li, Hui

doi:10.1016/j.conbuildmat.2015.10.181

Cited by 73 publications

(28 citation statements)

References 45 publications

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“…Current test results agree well with that in the existing literature [8][9][10][11][12][13][14][15][16][17][18][19][20]. Andal et al [18] tested strength and shrinkage of concrete using 20-mm recycled coarse aggregates of preserved quality and commercial quality (density = 2,310-2,320 kg/m 3 , absorption = 4.88-5.32%, w/c = 0.45).…”

Section: Strength Elastic Modulus and Poisson's Ratio Of Hardened Cosupporting

confidence: 86%

“…Domingo et al [16] reported that the specific creep of RAC with 50% RA (density = 2,460 kg/m 3 , absorption = 5.19-6.08%, w/c = 0.5, sustained loading about 30% of compressive strength started at 28 days) substitution increased over that of NAC by 29% and increased for RAC with 100% RA substitution by 32% over that of NAC. In addition, Rye et al [15] after systematic analysis of existing data matrix available in literature has concluded that the creep of concrete increases with a decreasing rate with increasing RA, giving an average increase of 32% at 100% RA content. The specific creep of CRAC is smaller than that of RAC: i.e.…”

Section: Creep Of Recycled Aggregate Concretementioning

confidence: 99%

“…There have been many studies on the long-term behaviour of recycled aggregate concrete, but very few on the shrinkage and creep behaviour of recycled aggregate concrete using carbonated recycled aggregate [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Strength, shrinkage and creep of concrete including CO2 treated recycled coarse aggregate

Chinzorigt¹,

Choi²,

Enkhbold³

et al. 2024

JACF

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Strength development and long-term behaviour of recycled aggregate concrete (RAC) were investigated. Recycled coarse aggregate (RA) replaced natural coarse aggregate (NA) by 30%, 50%, and 100% by vol. in this study while natural fine aggregate was always used. For the investigation of strength development, 3, 7, 28, 56, 90, and 180 day compressive strengths and 28 day split tensile strength and flexural strength have been determined. Shrinkage and creep behaviours of RAC with 0%, 50%, and 100% RA replacing NA have been studied up to 6 months. The compressive strength of RAC was not affected by 30% replacement, but it was reduced by 50% and 100% replacement. Split tensile strength was not affected significantly while flexural strength was reduced with increasing amount of replacement. Shrinkage strain of RAC with 50% RA was similar to that of natural aggregate concrete, but shrinkage increased with 100% replacement. Specific creep of RAC with 100% RA increased by 38% over that of natural aggregate concrete. The strength of concrete with CO2 treated RA was lower than that of concrete with RA without CO2 treatment. Shrinkage of RAC with and without CO2 treatment was similar, while the creep of RAC with CO2 treated RA was smaller than that of RAC including RA without CO2 treatment.

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Section: Strength Elastic Modulus and Poisson's Ratio Of Hardened Cosupporting

confidence: 86%

Section: Creep Of Recycled Aggregate Concretementioning

confidence: 99%

See 1 more Smart Citation

Strength, shrinkage and creep of concrete including CO2 treated recycled coarse aggregate

Chinzorigt¹,

Choi²,

Enkhbold³

et al. 2024

JACF

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“…The drying shrinkage, creep, and water absorption of RCA concrete are also higher, and its compressive strength is lower. In addition, RCA has a higher porosity, the values of slump loss, Los Angeles abrasion (LA) test and aggregate crushing value (ACV) are also higher than those of natural stones [21]. Although, the properties of RCA may change in relation to its source, it still can be used in concrete.…”

Section: Introduction mentioning

confidence: 99%

Development of Concrete Paving Blocks Prepared from Waste Materials without Portland Cement

Namarak

Bumrungsri

Tangchirapat

et al. 2018

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This experiment used three types of waste materials: calcium carbide residue, fly ash, and recycled concrete aggregate to develop concrete paving blocks. The blocks had calcium carbide residue and fly ash as a binder without ordinary Portland cement (OPC) and combined with 100 % of recycled concrete aggregate. The concrete paving blocks were 10 × 10 × 20 cm and were formed using a pressure of 6 or 8 MPa. The binder-to-aggregate ratio was held constant at 1:3 by weight, while the water-to-binder ratios were 0.30, 0.35, and 0.40. The effects of the water-to-binder ratios and fineness of the binder on the compressive strength, flexural strength, abrasion resistance, and water absorption of the concrete paving blocks were determined and compared with those of TIS 827 and ASTM C1319 standards. The results revealed that by applying this procedure, we were able to produce an excellent concrete paving block without using OPC. The compressive strength of the concrete paving blocks made from these waste materials was 41.4 MPa at 28 days and increased to 45.3 MPa at 60 days. Therefore, these waste materials can be used as raw materials to manufacture concrete paving blocks without OPC that meet the requirements of 40 MPa and 35 MPa specified by the TIS 827 and ASTM C1319 standards, respectively.

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“…However, if there are only splinters with approximate dimensions of 10.0 cm, the Point Load Method can be used for those samples that have not been carved, simple tension and indirect tension, bending or modulus of rupture. The modulus of rupture is the index value for the design of hardened pavements (Lye et al, 2016). The evaluation of the recycled concrete is also done with the use of test methods that are not destructive and that do not require material preparation.…”

Section: Introductionmentioning

confidence: 99%

Concreto reciclado: una revisión

Martínez-Molina

Torres-Acosta²,

Alonso-Guzmán

et al. 2015

Revista de la Asociación Latinoamericana de Control de Calidad,

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La generación de residuos sólidos de concreto hidráulico, considerados como desecho, está convirtiéndose en un problema medioambiental. El material de construcción mayormente fabricado es el cemento Portland (CP), pero un problema es su alta temperatura de fabricación, que genera contaminantes. El uso de agregados triturados provenientes de demolición de concreto hidráulico se aprovecha para generar Concreto Hidráulico Reciclado, un material que puede abatir costos, disminuir la contaminación y abaratar la edificación. Sin embargo, la elaboración de concreto reciclado se enfrenta a la búsqueda de diseños óptimos para lograr el mayor desempeño mecánico bajo solicitaciones estáticas y dinámicas. En este trabajo se hace una revisión de los avances internacionales en esta temática.

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Creep strain of recycled aggregate concrete

Cited by 73 publications

References 45 publications

Strength, shrinkage and creep of concrete including CO2 treated recycled coarse aggregate

Strength, shrinkage and creep of concrete including CO2 treated recycled coarse aggregate

Development of Concrete Paving Blocks Prepared from Waste Materials without Portland Cement

Concreto reciclado: una revisión

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