Quality Improvement Techniques for Recycled Concrete Aggregate: A review
Source abstract
Abstract
The main problem in using recycled concrete aggregate (RCA) as a construction material is due to the weak adhered mortar which usually has higher porosity and water absorption. It also has lower strength compared to natural aggregate (NA), and it often forms weak interfacial transition zones in the recycled aggregate concrete (RAC). These weak zones lead to negative effects on the mechanical properties and durability performance of RAC. In order to utilize RCA in more effectively as aggregate in concrete, it is necessary to improve the quality and enhance the properties of the attached weak mortar. This paper reviews different treatment methods of RCA based on the published research, and systematically analyses the strengths and weaknesses as well as the applicability and limitations of each method. The advantages and disadvantages of each treatment method, in terms of their technical feasibility, efficiency, economic and environmental impacts, are also discussed, in view of facilitating the selection of the most suitable treatment method for RCA. Although most techniques have been examined and trialed under laboratory conditions, further investigations are required to determine the most effective approach for treating RCA, with consideration not only given to the laboratory scale, but also on a commercial production scale.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Recycled Aggregate Concrete Performance · Innovative concrete reinforcement materials · Innovations in Concrete and Construction Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Naval Architecture, Ocean and Civil Engineering, State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China.
References (100+)
Show source-provided references
1. 1) Abbas, A., Fathifazl, G., Burkan Isgor, O., Razaqpur, A. G., Fournier, B. and Foo, S., (2008). “Proposed method for determining the residual mortar content of recycled concrete aggregates.” J. ASTM Int., 5(1), 1-12.10.1520/JAI101087 ↗
2. 2) Abd Elhakam, A., Mohamed, A. E. and Awad, E., (2012). “Influence of self-healing, mixing method and adding silica fume on mechanical properties of recycled aggregates concrete.” Constr. Build. Mater., 35, 421-427.10.1016/j.conbuildmat.2012.04.013 ↗
3. 3) Abdel-Hay, A. S., (2017). “Properties of recycled concrete aggregate under different curing conditions.” HBRC J., 13(3), 271-276.10.1016/j.hbrcj.2015.07.001 ↗
4. 4) Achal, V., Mukherjee, A., Basu, P. C. and Reddy, M. S., (2009). “Lactose mother liquor as an alternative nutrient source for microbial concrete production by Sporosarcina pasteurii.” J. Ind. Microbiol. Biotechnol., 36(3), 433-438.10.1007/s10295-008-0514-7 ↗
5. 5) ACI Committee 555, (2001). “Removal and reuse of hardened concrete.” ACI 555R-01, ACI committee 555 report, American Concrete Institute, Farmington Hills, Michigan.
6. 6) Ajdukiewicz, A. and Kliszczewicz, A., (2002). “Influence of recycled aggregates on mechanical properties of HS/HPC.” Cem. Concr. Compos., 24, 269-279.10.1016/S0958-9465(01)00012-9 ↗
7. 7) Akbarnezhad, A. and Ong, K. C. G., (2010). “Microwave decontamination of concrete.” Maga. Concr. Res., 62(12), 879-885.10.1680/macr.2010.62.12.879 ↗
8. 8) Akbarnezhad, A., Ong, K. C. G., Zhang, M. H., Tam, C. T. and Foo, T. W. J., (2011). “Microwave-assisted beneficiation of recycled concrete aggregates.” Constr. Build. Mater., 25(8), 3469-3479.10.1016/j.conbuildmat.2011.03.038 ↗
9. 9) Al-Bayati, H. K. A., Das, P. K., Tighe, S. L. and Baaj, H., (2016). “Evaluation of various treatment methods for enhancing the physical and morphological properties of coarse recycled concrete aggregate.” Constr. Build. Mater., 112, 284-298.10.1016/j.conbuildmat.2016.02.176 ↗
10. 10) Archontas, N. D. and Pantazopoulou, S. J., (2015). “Microstructural behavior and mechanics of nano-modified cementitious materials.” Adv. Concr. Constr. 3(1), 15-37.10.12989/acc.2015.3.1.015 ↗
11. 11) BCSJ, (1977). “Proposed standard for the use of recycled aggregate and recycled aggregate concrete.” Committee on disposal and reuse of construction waste, Building Con-tractors Society of Japan, Japan.
12. 12) Binyu, Z. and Chi Sun, P., (2015). “Use of furnace bottom ash for producing lightweight aggregate concrete with thermal insulation properties.” J. Clean. Prod., 99, 94-100.
13. 13) Borges, P. H. R., Costa, J. O., Milestone, N. B., Lynsdale, C. J. and Streatfield, R. E., (2010). “Carbonation of CH and C-S-H in composite cement pastes containing high amounts of BFS.” Cem. Concr. Res. 40(2), 284-292.10.1016/j.cemconres.2009.10.020 ↗
14. 14) Bru, K., Touzé, S., Bourgeois, F., Lippiatt, N. and Ménard, Y., (2014). “Assessment of a microwave-assisted recycling process for the recovery of high-quality aggregates from concrete waste.” Int. J. Mineral Process. 126, 90-98.10.1016/j.minpro.2013.11.009 ↗
15. 15) BS 8500-2, (2002). “Concrete - complementary British standard to BS EN 206-1, Part 2: Specification for constituent materials and concrete.” British Standards Institution, United Kingdom.
16. 16) Castellote, M., Fernandez, L., Andrade, C. and Alonso, C., (2009). “Chemical changes and phase analysis of OPC pastes carbonated at different CO2 concentrations.” Mater. Struct., 42(4), 515-525.10.1617/s11527-008-9399-1 ↗
17. 17) Chen, J. J., Thomas, J. J. and Jennings, H. M., (2006). “Decalcification shrinkage of cement paste.” Cem. Concr. Res., 36(5), 801-809.10.1016/j.cemconres.2005.11.003 ↗
18. 18) Cheng, H. L. and Wang, C. Y., (2004). “Improvement of recycled aggregate quality by pre-soaking with water glass.” Gypsum Cem. Build., 12, 12-14.
19. 19) Choi, H., Choi, H., Lim, M., Inoue, M., Kitagaki, R. and Noguchi, T., (2016). “Evaluation on the mechanical performance of low-quality recycled aggregate through interface enhancement between cement matrix and coarse aggregate by surface modification technology.” Int. J. Concr. Struct. Mater., 10(1), 87-97.10.1007/s40069-015-0124-5 ↗
20. 20) DIN 4226-100, (2002). “Aggregates for mortar and concrete, Part 100: Recycled aggregates.” Deutsches Institut fur Normung E.V., Germany.
21. 21) De Juan, M. S. and Gutiérrez, P. A., (2009). “Study on the influence of attached mortar content on the properties of recycled concrete aggregate.” Constr. Build. Mater. 23(2), 872-877.10.1016/j.conbuildmat.2008.04.012 ↗
22. 22) Eckert, M. and Oliveira, M., (2017). “Mitigation of the negative effects of recycled aggregate water absorption in concrete technology.” Constr. Build. Mater., 133, 416-424.10.1016/j.conbuildmat.2016.12.132 ↗
23. 23) Etxeberria, M., Vazquez, E., Mari, A. and Barra, M., (2007). “Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete.” Cem. Concr. Res., 37, 735-742.10.1016/j.cemconres.2007.02.002 ↗
24. 24) Freedonia, (2016). “World construction aggregates – demand and sales forecasts, market share, market size, market leaders.” Cleveland, The Freedonia Group Inc, (Study No 3389).
25. 25) Grabiec, A. M., Klama, J., Zawal, D. and Krupa, D., (2012). “Modification of recycled concrete aggregate by calcium carbonate biodeposition.” Constr. Build. Mater. 34, 145-150.10.1016/j.conbuildmat.2012.02.027 ↗
26. 26) Guo, H., Shi, C., Guan, X., Zhu, J., Ding, Y. and Ling, T-C., (2018). “Durability of recycled aggregate concrete - A review.” Cem. Concr. Compos., 89, 251-259.10.1016/j.cemconcomp.2018.03.008 ↗
27. 27) Haghighatnejad, N., Mousavi, S. Y., Khaleghi, S. J., Tabarsa, A. and Yousefi, S., (2016). “Properties of recycled PVC aggregate concrete under different curing conditions.” Constr. Build. Mater. 126, 943-950.10.1016/j.conbuildmat.2016.09.047 ↗
28. 28) Henry, M., Pardo, G., Nishimura, T. and Kato, Y., (2011). “Balancing durability and environmental impact in concrete combining low-grade recycled aggregates and mineral admixtures.” Resour. Conserv. Recycl. 55(11), 1060-1069.10.1016/j.resconrec.2011.05.020 ↗
29. 29) Ismail, S. and Ramli, M., (2013). “Engineering properties of treated recycled concrete aggregate (RCA) for structural applications.” Constr. Build. Mater., 44, 464-476.10.1016/j.conbuildmat.2013.03.014 ↗
30. 30) JIS A 5021, (2005). “Recycled aggregate for concrete-class H.” Japan Standards Association, Japan.
31. 31) JIS A 5022, (2006). “Recycled aggregate for concrete-class M.” Japan Standards Association, Japan.
32. 32) JIS A 5023, (2007). “Recycled aggregate for concrete-class L.” Japan Standards Association, Japan.
33. 33) Jin, R., Li, B., Elamin, A., Wang, S., Tsioulou, O.and Wanatowski, D., (2018). “Experimental investigation of properties of concrete containing recycled construction wastes.” Int. J. Civ. Eng., 16(11), 1621-1633.10.1007/s40999-018-0301-4 ↗
34. 34) Katz, A., (2004). “Treatments for the Improvement of Recycled Aggregate.” J. Mater. Civ. Eng., 16(6), 597-603.10.1061/(ASCE)0899-1561(2004)16:6(597) ↗
35. 35) Kong, D., Lei, T., Zheng, J., Ma, C., Jiang, J. and Jiang, J., (2010). “Effect and mechanism of surface-coating pozzolanic materials around aggregate on properties and ITZ microstructure of recycled aggregate concrete.” Constr. Build. Mater., 24(5), 701-708.10.1016/j.conbuildmat.2009.10.038 ↗
36. 36) Kou, S. C. and Poon, C. S., (2010). “Properties of concrete prepared with PVA-impregnated recycled concrete aggregates.” Cem. Concr. Compos., 32(8), 649-654.10.1016/j.cemconcomp.2010.05.003 ↗
37. 37) Kou, S. C., Zhan, B. J. and Poon, C. S., (2014). “Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates.” Cem. Concr. Compos., 45, 22-28.10.1016/j.cemconcomp.2013.09.008 ↗
38. 38) Lee, C.-H., Du, J.-C. and Shen, D.-H., (2012). “Evaluation of pre-coated recycled concrete aggregate for hot mix asphalt.” Constr. Build. Mater. 28(1), 66-71.10.1016/j.conbuildmat.2011.08.025 ↗
39. 39) Leite, F. D. C., Motta, R. D. S., Vasconcelos, K. L. and Bernucci, L., (2011). “Laboratory evaluation of recycled construction and demolition waste for pavements.” Constr. Build. Mater., 25, 2972-2979.10.1016/j.conbuildmat.2010.11.105 ↗
40. 40) Li, J., Xiao, H. and Zhou, Y., (2009). “Influence of coating recycled aggregate surface with pozzolanic powder on properties of recycled aggregate concrete.” Constr. Build. Mater., 23(3), 1287-1291.10.1016/j.conbuildmat.2008.07.019 ↗
41. 41) Like, Q., Yong, L., Jun, D. and Pengfei, T., (2016). “Thermal stress distribution and evaluation of concrete particles under microwave irradiation.” J. Eng. Technol. Rev., 9(3), 148-154.10.25103/jestr.093.23 ↗
42. 42) Lippiatt, N. and Bourgeois, F., (2012). “Investigation of microwave-assisted concrete recycling using single-particle testing.” Mineral Eng., 31, 71-81.10.1016/j.mineng.2011.09.017 ↗
43. 43) Malešev, M., Radonjanin, V. and Marinković, S., (2010). “Recycled concrete as aggregate for structural concrete production.” Sustain., 2(5), 1204-1225.10.3390/su2051204 ↗
44. 44) Ma, X. W., Han, Z.X., Li, X. Y. and Meng, F. N., (2009). “Thermal treatment of waste concrete and the rehydration properties of the dehydrated cement paste.” J. Qingdao Technol. Univ., 3(4), 93-97
45. 45) Mansur, A. A. P., Santos, D. B. and Mansur, H. S., (2007). “A microstructural approach to adherence mechanism of poly(vinyl alcohol) modified cement systems to ceramic tiles.” Cem. Concr. Res., 37(2), 270-282.10.1016/j.cemconres.2006.11.011 ↗
46. 46) Martirena, F., Castaño, T. and Alujas, A., Orozco-morales, R., Martinez, L. and Linsel, S., (2017). “Improving quality of coarse recycled aggregates through cement coating.” J. Sustain. Cement-Based Mater., 6(1), 69-84.10.1080/21650373.2016.1234983 ↗
47. 47) Menard, Y., Bru, K., Touze, S., Lemoign, A., Poirier, J. E., Ruffie, G. and Von Der Weid, F., (2013). “Innovative process routes for a high-quality concrete recycling.” Waste Manage., 33(6), 1561-1565.10.1016/j.wasman.2013.02.006 ↗
48. 48) Miller, G., (2005). “Running out of gravel and rock.” Toronto Star, January 6, A22.
49. 49) Miyandehi, B. M, Feizbakhsh, A., Yazdi, M. A., Liu, Q. F., Yang, J. and Alipour, P., (2016). “Performance and properties of mortar mixed with nano-CuO and rice husk ash.” Cem. Concr. Compos., 74, 225-235.10.1016/j.cemconcomp.2016.10.006 ↗
50. 50) Mohseni, E., Miyandehi, B. M., Yang, J. and Yazdi, M. A., (2015). “Single and combined effects of nano-SiO2, nano-Al2O3 and nano-TiO2 on the mechanical, rheological and durability properties of self-compacting mortar containing fly ash.” Constr. Build. Mater. 84, 331-340.10.1016/j.conbuildmat.2015.03.006 ↗
51. 51) Mukharjee, B. B. and Barai, S. V., (2017). “Mechanical and microstructural characterization of recycled aggregate concrete containing silica nanoparticles.” J. Sustain. Cement-Based Mater., 6(1), 37-53.10.1080/21650373.2016.1230899 ↗
52. 52) Mulder, E. and Feenstra, L., (2007). “Closed cycle construction - A process for the separation and reuse of the total C&D waste stream.” In: Proc. of Sustain. Constr. Mater. Technol., London, Taylor & Francis Group, 27-34.
53. 53) Ogawa, H. and Nawa, T., (2012). “Improving the quality of recycled fine aggregates by selective removal of brittleness defects.” J. Adv. Concr. Technol., 10, 395-410.10.3151/jact.10.395 ↗
54. 54) Padhi, R., S., Patra, R., K., Mukharjee, B., B. and Dey, T., (2018). “Influence of incorporation of rice husk ash and coarse recycled concrete aggregates on properties of concrete.” Constr. Build. Mater., 173, 289-297.10.1016/j.conbuildmat.2018.03.270 ↗
55. 55) Pan, G., Zhan, M., Fu, M., Wang, Y. and Lu, X., (2017). “Effect of CO2 curing on demolition recycled fine aggregates enhanced by calcium hydroxide pre-soaking.” Constr. Build. Mater., 154, 810-818.10.1016/j.conbuildmat.2017.07.079 ↗
56. 56) Pandurangan, K., Dayanithy, A. and Om Prakash, S., (2016). “Influence of treatment methods on the bond strength of recycled aggregate concrete.” Constr. Build. Mater., 120, 212-221.10.1016/j.conbuildmat.2016.05.093 ↗
57. 57) Pasandín, A. R. and Pérez, I., (2014). “Mechanical properties of hot-mix asphalt made with recycled concrete aggregates coated with bitumen emulsion.” Constr. Build. Mater., 55, 350-358.10.1016/j.conbuildmat.2014.01.053 ↗
58. 58) Peng, C., (2016). “Calculation of a building’s life cycle carbon emissions based on Ecotect and building information modeling.” J. Clean. Prod., 112, 453-465.10.1016/j.jclepro.2015.08.078 ↗
59. 59) Purushothaman, R., Amirthavalli, R. R. and Karan, L., (2015). “Influence of treatment methods on the strength and performance characteristics of recycled aggregate concrete.” J. Mater. Civ. Eng., 27(5), 04014168.10.1061/(ASCE)MT.1943-5533.0001128 ↗
60. 60) Qian, C., Wang, J., Wang, R. and Cheng, L., (2009). “Corrosion protection of cement-based building materials by surface deposition of CaCO3 by Bacillus pasteurii.” Mater. Sci. Eng. C., 29(4), 1273-1280.10.1016/j.msec.2008.10.025 ↗
61. 61) Qiu, J., Qin, D., Sheng-Tng, D. Q. and Yang, E., (2014). “Surface treatment of recycled concrete aggregates through microbial carbonate precipitation.” Constr. Build. Mater., 57, 144-150.10.1016/j.conbuildmat.2014.01.085 ↗
62. 62) Rahal, K., (2007). “Mechanical properties of concrete with recycled coarse aggregate.” Build. Environ., 42(1), 407-415.10.1016/j.buildenv.2005.07.033 ↗
63. 63) Rao, A., Jha, K., N. and Misra, S., (2007). “Use of aggregates from recycled construction and demolition waste in concrete.” Resour. Conserv. Recycl., 50, 71-81.10.1016/j.resconrec.2006.05.010 ↗
64. 64) Saotome, T., (2007). “Development of construction and demolition waste recycling in Ontario.” School of Engineering Practice SEP 704, McMaster University, Hamilton, ON, Canada.
65. 65) Saravanakumar, P. and Dhinakaran, G., (2012). “Effect of admixed recycled aggregate concrete on properties of fresh and hardened concrete.” ASCE J. Mater. Civ. Eng., 24(4), 494-498.10.1061/(ASCE)MT.1943-5533.0000393 ↗
66. 66) Saravanakumar, P. and Dhinakaran, G., (2013). “Durability characteristics of recycled aggregate concrete.” Struct. Eng. and Mech., 47(5), 701-711.10.12989/sem.2013.47.5.701 ↗
67. 67) Saravanakumar, P., Abhiram, K. and Manoj, B., (2016). “Properties of treated recycled aggregates and its influence on concrete strength characteristics.” Constr. Build. Mater., 111, 611-617.10.1016/j.conbuildmat.2016.02.064 ↗
68. 68) Shayan, A. and Xu, A., (2003). “Performance and properties of structural concrete made with recycled concrete aggregate.” ACI Mater. J., 100(5), 371-380.
69. 69) Shi, C., Wu, Z., Cao, Z., Ling, T., C. and Zheng., J., (2018). “Performance of mortar prepared with recycled concrete aggregate enhanced by CO2 and pozzolan slurry.” Constr. Build. Mater., 86, 130-138.
70. 70) Shima, H., Tateyashiki, H., Matsuhashi, R. and Yoshida, Y., (2005). “An advanced concrete recycling technology and its applicability assessment by the input-output analysis.” J. Adv. Concr. Technol., 3(1), 53-67.10.3151/jact.3.53 ↗
71. 71) Silva, R. V., Neves, R., De Brito, J. and Dhir, R. K., (2015). “Carbonation behaviour of recycled aggregate concrete.” Cem. Concr. Compos., 62, 22-32.10.1016/j.cemconcomp.2015.04.017 ↗
72. 72) Singh, N. B. and Rai, S., (2001). “Effect of polyvinyl alcohol on the hydration of cement with rice husk ash.” Cem. Concr. Res., 31(2), 239-243.10.1016/S0008-8846(00)00475-0 ↗
73. 73) Smith, J.T., Tighe, S.L., Norris, J., Kim, E., and Xu, X., (2008). “Coarse recycled aggregate concrete pavements-design, instrumentation, and performance.” In: Proceedings of annual conference of the Transportation Association of Canada, Toronto, ON, Canada.
74. 74) Spaeth, V. and Djerbi Tegguer, A., (2013). “Improvement of recycled concrete aggregate properties by polymer treatments.” Int. J. Sustain. Built Environ. 2(2), 143-152.10.1016/j.ijsbe.2014.03.003 ↗
75. 75) Spaeth, V., Delplancke-Ogletree, M. P. and Lecomte, J. P., (2008). “Hydration process and microstructure development of integral water repellent cement based materials.” In: Proceeding of 5th International Conference on Water Repellent Treatment of Building Materials, 254, 245-254.
76. 76) Sui, Y. and Mueller, A., (2012). “Development of thermo-mechanical treatment for recycling of used concrete.” Mater. Struct., 45, 1487-1495.10.1617/s11527-012-9852-z ↗
77. 77) Sun, Y. D., Xiao, J. Z., (2004). “Aggregate of recycled concrete.” Concrete, 176(6), 33-36.
78. 78) Tabsh, S., W. and Abdelfatah, A., S., (2009). “Influence of recycled concrete aggregates on strength properties.” Constr. Build. Mater., 23, 1163-1167.10.1016/j.conbuildmat.2008.06.007 ↗
79. 79) Tam, V. W. Y., Gao, X. F. and Tam, C. M., (2005). “Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach.” Cem. Concr. Res., 35, 1195-1203.10.1016/j.cemconres.2004.10.025 ↗
80. 80) Tam, V. W. Y., Tam, C. M. and Le, K. N., (2007). “Removal of cement mortar remains from recycled aggregate using pre-soaking approaches.” Resour. Conserv. Recycl., 50, 82-101.10.1016/j.resconrec.2006.05.012 ↗
81. 81) Tam, V. W. Y. and Tam, C. M., (2008). “Diversifying two-stage mixing approach (TSMA) for recycled aggregate concrete: TSMAs and TSMAsc.” Constr. Build. Mater., 22, 2068-2077.10.1016/j.conbuildmat.2007.07.024 ↗
82. 82) Thiery, M., Dangla, P., Belin, P., Habert, G. and Roussel, N., (2013). “Carbonation kinetics of a bed of recycled concrete aggregates: A laboratory study on model materials.” Cem. Concr. Res., 46, 50-65.10.1016/j.cemconres.2013.01.005 ↗
83. 83) Thiery, M., Villain, G., Dangla, P. and Platret, G., (2007). “Investigation of the carbonation front shape on cementitious materials: Effects of the chemical kinetics.” Cem. Concr. Res., 37, 1047-1058.10.1016/j.cemconres.2007.04.002 ↗
84. 84) Tripura, D., D., Raj, S., Mohammad, S. and Das, R., (2018). “Suitability of recycled aggregate as a replacement for natural aggregate in construction.” ACI Mater. J., 326, 37.1-37.10.
85. 85) Tsujino, M., Noguchi, T., Tamura, M., Kanematsu, M. and Maruyama, I., (2007). “Application of conventionally recycled coarse aggregate to concrete structure by surface modification treatment.” J. Adv. Concr. Technol., 5(1), 13-25.10.3151/jact.5.13 ↗
86. 86) Turley, W., (2018). “Construction recycling & demolition recycling information by material: concrete.” Chicago, 5(2).
87. 87) WBTC, (2002). “Specifications facilitating the use of recycled aggregates.” Works Bureau Technical Circular 12/2002, 209/32/105, Hong-Kong.
88. 88) Wang, L., Wang, J., Qian, X., Chen, P., Xu, Y. and Guo, J., (2017). “An environmentally friendly method to improve the quality of recycled concrete aggregates.” Constr. Build. Mater., 144, 432-441.10.1016/j.conbuildmat.2017.03.191 ↗
89. 89) Xuan, D., Zhan, B. and Poon, C. S., (2017). “Durability of recycled aggregate concrete prepared with carbonated recycled concrete aggregates.” Cem. Concr. Compos., 84, 214-221.10.1016/j.cemconcomp.2017.09.015 ↗
90. 90) Yang, J., Du, Q. and Bao, Y., (2011). “Concrete with recycled concrete aggregate and crushed clay bricks.” Constr. Build. Mater., 25, 1935-1945.10.1016/j.conbuildmat.2010.11.063 ↗
91. 91) Yang, J., Mohseni, E., Behforouz, B. and Khotbehsara, M. M., (2015). “An experimental investigation into the effects of Cr2O3 and ZnO2 nanoparticles on the mechanical properties and durability of self-compacting mortar.” Int. J. Mater. Res., 106(8), 886-892.10.3139/146.111245 ↗
92. 92) Yang, L., Qian, Y., Fang, Q. and Han, Y., (2016). “Effects of recycled coarse aggregate reinforcing treated by water-glass on the performance of recycled concrete.” In: Proceedings of the 3rd International Conference on Material Engineering and Application (ICMEA 2016)., Adv. Eng. Res. 103, 181-186.10.2991/icmea-16.2016.29 ↗
93. 93) Yang, Y., Ying, C., Sierens, Z., Fan, H. and Li, J., (2018). “Efficient recycling and reuse of waste concrete on a construction site.” ACI Mater. J., 326, 38.1-38.10.
94. 94) Yoda K., Harada M. and Sakuramoto F., (2003). “Field application and advantage of concrete recycled in-situ recycling systems.” London, E14 4JD, United Kingdom: Thomas Telford Services Ltd.
95. 95) Yonezawa T., Kamiyama Y. and Yanagibashi K., (2001). “A study on a technology for producing high quality recycled coarse aggregate.” Zairyo/J Soc Mater Sci Jpn., 50(8), 835-42.10.2472/jsms.50.835 ↗
96. 96) Zhang, J., Shi, C., Li, Y., Pan, X., Poon, C. and Xie, Z., (2015a). “Performance enhancement of recycled concrete aggregates through carbonation.” J. Mater. Civ. Eng., 27(11), 04015029.10.1061/(ASCE)MT.1943-5533.0001296 ↗
97. 97) Zhang, J., Shi, C., Li, Y., Pan, X., Poon, C. S. and Xie, Z., (2015b). “Influence of carbonated recycled concrete aggregate on properties of cement mortar.” Constr. Build. Mater., 98, 1-7.10.1016/j.conbuildmat.2015.08.087 ↗
98. 98) Zhang, H., Zhao, Y., Meng, T. and Shah, S. P., (2015c). “The modification effects of a nano-silica slurry on microstructure, strength, and strain development of recycled aggregate concrete applied in an enlarged structural test.” Constr. Build. Mater., 95, 721-735.10.1016/j.conbuildmat.2015.07.089 ↗
99. 99) Zhang, J., Taylor, P. and Shi, C., (2015d). “Investigation of approaches for improving interfacial transition zone related freezing-and-thawing resistance in concrete pavements.” ACI Mater. J., 112(5), 613-618.10.14359/51687902 ↗
100. 100) Zhang, Z. and Wang, B., (2016). “Research on the life-cycle CO2 emission of China’s construction sector.” Energy Build., 112, 244-255.10.1016/j.enbuild.2015.12.026 ↗