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Chloride Diffusivity of Concrete using Recycled Aggregate by Strength Levels
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 Title & Authors
Chloride Diffusivity of Concrete using Recycled Aggregate by Strength Levels
Lee, Jun; Lee, Bong-Chun; Cho, Young-Keun; Jung, Sang-Hwa;
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This paper presents mechanical properties and chloride diffusivity of the recycled aggregate concretes(RAC) in which natural coarse aggregate was replaced by recycled coarse aggregate(RCA) by compressive strength levels(20, 35, 50 MPa). A total of 9 RAC were produced and classified into three series, each of which included three mixes designed with three compressive strength levels of 20 MPa, 35 MPa and 50 MPa and three RCA replacement ratios of 0, 50 and 100%. Engineering properties of RAC were tested for slump test, air content, compressive strength, chloride penetration depth and chloride diffusion coefficient. The test results indicated that the workability of RAC could be improved or same by RCA replacement ratios, when compared with that containing no RCA. This is probably because of the RCA shape improving the workability of RAC. Also, the test results showed that the compressive strength was decreased by 9~10% as the RCA replacement ratios increase. Furthermore, the result indicated that the measured chloride diffusion coefficient increases by 144% with the increase of the RCA replacement. In the case of the concrete having low level compressive strength, the increase of chloride diffusion coefficient tends to be higher when using the RCA. However, the trend of chloride diffusion coefficient in high level compressive strength concrete is similar to that obtained in general concrete. This is because that the effect of the RCA replacement could be a decrease with increase of compressive strength. Therefore, an advance on the admixture application and mix ratio control are required to improve the chloride resistivity when using the recycled aggregate in large scale.
Construction Waste;Recycled Aggregate;Concrete;Attached Mortar;Chloride Diffusivity;
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Bae, J.-M., and Kim, Y.-S. (2010), Astudy on the chloride diffusivity of recycled aggregate concrete, Journal of The Korea Institute of Building Construction, 10(1), 147-153. crossref(new window)

Bae, J.-Y., Jang, Y.-I., Kim, Y.-Y., and Lee, B.-J. (2012), Hydration heat and chloride migration properties of high durable marine concrete, Proceeding of Korea Institute for Structural Matenance and Inspection, 462-465

Berndt, M. L. (2009). Properties of sustainable concrete containing fly ash, slag and recycled concrete aggregate, Construction and Building Materials, 23(7), 2606-2613. crossref(new window)

CSIRO. (2002), Guide to the use of recycled concrete and masonry materials. Standards Australia, HB 155-.

de Oliveira, M. B., and Vazquez, E. (1996), Influence of retained moisture in aggregates from recycling on the properties of new hardened concrete, Waste Management, 16(1-3), 113-117. crossref(new window)

Evangelista, L., and de Brito, J. (2010), Durability performance of concrete mad with fine recycled concrete aggregate, Journal of Cement & Concrete Composite, Vol.32, 9-14. crossref(new window)

Kim, K.-H., Shin, M.-S., Kong, Y.-S., and Cha, S.-W. (2013), Effect of fly ash on rheology and strength of recycled aggregate concrete, Journal of the Korea Concrete Institute, 25(2), 241-250. crossref(new window)

Korean Ministry of Environment (2014), Basic plan for recycling construction waste(2nd).

Kwan, W. H., Ramli, M., Kam, K. J., and Sulieman, M. Z. (2012), Influence of the amount of recycled coarse aggregate in concrete design and durability properties, Construction and Building Materials, 26(1), 565-573.

Lee, W. Choi, J., Jung, Y.-W. (2015), Effect fo the amaount of attached mortar of recycled aggregates on the properties of concrete, Journal of the Korea Recycled Construction Resource Institute, 3(2), 132-139. crossref(new window)

Montgomery, D., and Sturgiss, D. (1996), Properties of concrete incorporating recycled concrete aggregates, Institution of Engineers, 153.

Poon, C. (2007). Influence of fly ash as cement replacement on the properties of recycled aggregate concrete. Journal of Materials in Civil Engineering, 19(2), 709-717. crossref(new window)

Ryu, H.-J. (2011), A study on the mechanical properties of recycled aggregate concrete using fly ash, Kongju National University, 75-81.

Sagoe-Crentsil, K., Brown, T., and Taylor, A. H. (2001), Performance of concrete made with commercially produced coarse recycled concrete aggregate, Cement and Concrete Research, 31(5), 707-712. crossref(new window)

Whiting, B. A., McCarthy, T. J., and Lume, E. (2012), Drying shrinkage of concrete made from recycled concrete aggregate, 22nd Australasian Conference on the Mechanics of Structures and Materials, 1-6.

Xiao, J., Li, J., and Zhang, C. (2005). Techanical properties of recycled aggregate concrete under uniaxial loading, Cement and Concrete Composites, 35, 1187-1194. crossref(new window)

Xiao, J., Lu, D., and Ying, J. (2013), Durability of recycled aggregate concrete, Journal of Advanced Concrete Technology, 11, 247-359.

Zong, L., Fei, Z., and Zhang, S. (2014), Permeability of recycled aggregate concrete containing fly ash and clay brick waste, Journal of Cleaner Production, 70, 175-182. crossref(new window)