Estimation of compressive strength of high-strength concrete with recycled aggregate using non-destructive test and numerical analysis Y S Cho1, S K Baek1, Y T Lee2, S H Kim2 and S U Hong*2 The purpose of the study is to provide reliable data on high-strength recycled aggregate concrete.. Know More. Influence of Surface. Influence of Surface-Treated Coarse Recycled Concrete Aggregate on ...

Get PriceThe database has made it possible to analyse the different properties of recycled concrete aggregate (aggregate recycled from concrete waste), such as density, water absorption, Los Angeles coefficient, etc. Relationships between these properties and also between some of them and the compressive strength of recycled concrete have been established. This has provided a design methodology for ...

Get PriceTitle: New Views on Effect of Recycled Aggregates on Concrete Compressive Strength. Author(s): Vivian A. Ulloa, Emili García-Taengua, María-José Pelufo, Alberto Domingo, and Pedro Serna. Publication: Materials Journal. Volume: 110. Issue: 6. Appears on pages(s): 687-696. Keywords: compressive strength; mid-term evolution; recycled aggregates; variability. Date: 11/1/2013. …

Get Price@article{osti_22224345, title = {Compressive strength and hydration processes of concrete with recycled aggregates}, author = {Koenders, Eduardus A.B., E-mail: [email protected] and Microlab, Delft University of Technology and Pepe, Marco and Martinelli, Enzo}, abstractNote = {This paper deals with the correlation between the time evolution of the degree of hydration and the ...

Get PricePrediction of Compressive Strength of Recycled Aggregate Concrete using LASSO Arif Cekic1* and Jale ... was ranked. Analysis results indicate that the water-to-cement ratio is the strongest predictor of the compressive strength, followed by temperature, replacement ratio, and concrete maturity in that order. The method described in this paper can be applied to a variety of modeling problems in ...

Get PriceTitle: Strength analysis of concrete made from construction and demolition waste recycled aggregates ijaerd, Author: Editor IJAERD, Name: Strength analysis of concrete made from construction and ...

Get PriceRecycled concrete aggregate concrete is, however, presently still limited to nonstructural applications. Recycled concrete aggregate concrete can still be considered as a rigid pavement material when its flexural strength is improved adequately to sustain future traffic loads. In this study, polyvinyl alcohol (PVA), a water-soluble polymer, was used to improve the flexural strength of RCA ...

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. .Resistance of Recycled Aggregate Concrete Members ~ Fulltext Compressive Strength Study on the Freeze …Get PriceThe compressive strengths of recycled aggregate concrete are lower than those of the same mix designs made with aggregate. Required compressive strengths can easily be met using recycled coarse aggregates. Comparison of the results from the original and recycled gravel mixes indicates some recycled mixes had higher flexural strength than the original mixes. As with compressive strength ...

Get PriceTitle: New Views on Effect of Recycled Aggregates on Concrete Compressive Strength. Author(s): Vivian A. Ulloa, Emili García-Taengua, María-José Pelufo, Alberto Domingo, and Pedro Serna. Publication: Materials Journal. Volume: 110. Issue: 6. Appears on pages(s): 687-696. Keywords: compressive strength; mid-term evolution; recycled aggregates; variability. Date: 11/1/2013. …

Get PriceAggregate (RA) on compressive strength of Recycled Aggregate Concrete (RAC) were investigated. RA is used to replace natural aggregate (NA) as coarse aggregate in concrete mixes. This research also covered RAC mixtures at different water-cement ratio (0.4, 0.5, 0.6). It was found that RAC had lower compressive strength compared to Natural Aggregate Concrete (NAC). At the age of 28 …

Get PriceIn the compressive strength test at a material age of 28 days, the concrete incorporating recycled aggregates show almost the same or slightly lower strength compared with natural aggregate concrete. Using the variables of optimised contact time, the velocity of the compression wave obtained through simulation can be an index to determine non-destructive test reliability and evaluate the ...

Get PriceEffect of Flyash on Recycle Coarse Aggregate Concrete 39 Figure 5: Split tensile Strength Vs Age for 0% flyash. Figure 6: Split tensile Strength Vs Age for 10% flyash. Figure 7: Split tensile Strength Vs Age for 20% flyash. 2.4 Modeling Analysis In this section the experimentally obtained values are used for multi linear regression

Get PriceStudy of recycled concrete aggregate quality and its relationship . with recycled concrete compressive strength using database analysis. I. González-Taboada, B. González-Fonteboa *, F. Martínez-Abella, D. Carro-López. Department of Construction Technology, E.T.S.I. Caminos, Canales, Puertos. University of A Coruña. Campus Elviña (A ...

Get PriceThe compressive strength of recycled aggregate concrete was found to range between 18 and 65 MPa, and therefore a prediction equation is proposed for recycled aggregate concrete that considers the ratio and types of recycled coarse aggregates used. Keywords: concrete. Full Text References. Cited By. Related content. Effect of mixed recycled aggregates on mechanical properties of recycled ...

Get Pricea recycled concrete aggregate replacement ratio of up to 80%. Yildirim et al. [29] suggest that the water-to-cement ratio, the degree of saturation (i.e. absorption) and the replacement ratio are negatively associated with the compressive strength of recycled aggregate concrete. Cakir …

Get PriceShear strength of recycled aggregate concrete is lesser than of normal concrete. This is because the recycled aggregate from field-demolished concrete for example can be relatively weaker than a typical natural aggregate. In general, there is a 10% decrease in strength when recycled coarse aggregates are used. Uses of Crushed Concrete Aggregates. Crushed Concrete has a wide variety of uses ...

Get PriceThe corresponding result for gravel concrete 0.94, 0.92; The compressive strength at 28 days of concrete made with granite on bare ground is 26.49 N/mm 2, that of concrete mixed on Concrete ...

Get PriceDownload Citation | On Jan 1, 2017, Chunling YAN and others published Two-factor Analysis on Compressive Strength of Recycled Aggregate Concrete | …

Get PriceCompressive strength of mortar and concrete which used RCA gradually decreased as the amount of the recycled materials increased. Regardless of curing conditions and fly ash addition, the 28 days strength of the recycled aggregate concrete was greater than the design strength, 40 MPa, with a complete replacement of coarse aggregate and a replacement level of natural fine aggregate by fine …

Get PriceHigh-Strength Structural Concrete with Recycled Aggregates A Dissertation Submitted By Nelson, Shing Chai NGO In fulfilment of the requirement of Course ENG 4111 and ENG 4112 Research Project Towards the degree of Bachelor of Engineering (Civil) Submitted: November, 2004 . Abstract Recycled aggregates are comprised of crushed, graded inorganic particles processed from the materials that …

Get PriceOn statistical characteristics of the compressive strength of recycled aggregate concrete

Get Pricethe effect of recycled concrete aggregate on the strength of ordinary concrete. The basic engineering properties of Recycled Concrete Aggregate (RCA) is evaluated and it is compared with the Normal Aggregate (NA). Similarly, the basic concrete properties like, compressive strength, workability etc. are

Get PriceWith the increase in the use of recycled aggregate concrete (RAC), it is necessary to clearly understand its behavior and characteristics. In this paper, experimental study on compressive strength of RAC with same water/cement ratio is conducted. Firstly, influence of recycled coarse aggregate contents on cube compressive strength of RAC is studied.

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