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Hassanean, Y., Rashwan, M., Assaf, K., Abd el Samee, K. (2014). INFLUENCE OF SIZE AND REPLACEMENT RATIO OF RECYCLED CONCRETE AGGREGATE ON CONCRETE PROPERTIES. JES. Journal of Engineering Sciences, 42(No 1), 50-63. doi: 10.21608/jesaun.2014.114275
Yehia A. Hassanean; M.M. Rashwan; Kamal A. Assaf; Khaled Abd el Samee. "INFLUENCE OF SIZE AND REPLACEMENT RATIO OF RECYCLED CONCRETE AGGREGATE ON CONCRETE PROPERTIES". JES. Journal of Engineering Sciences, 42, No 1, 2014, 50-63. doi: 10.21608/jesaun.2014.114275
Hassanean, Y., Rashwan, M., Assaf, K., Abd el Samee, K. (2014). 'INFLUENCE OF SIZE AND REPLACEMENT RATIO OF RECYCLED CONCRETE AGGREGATE ON CONCRETE PROPERTIES', JES. Journal of Engineering Sciences, 42(No 1), pp. 50-63. doi: 10.21608/jesaun.2014.114275
Hassanean, Y., Rashwan, M., Assaf, K., Abd el Samee, K. INFLUENCE OF SIZE AND REPLACEMENT RATIO OF RECYCLED CONCRETE AGGREGATE ON CONCRETE PROPERTIES. JES. Journal of Engineering Sciences, 2014; 42(No 1): 50-63. doi: 10.21608/jesaun.2014.114275

INFLUENCE OF SIZE AND REPLACEMENT RATIO OF RECYCLED CONCRETE AGGREGATE ON CONCRETE PROPERTIES

Article 3, Volume 42, No 1, January and February 2014, Page 50-63  XML PDF (384.5 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2014.114275
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Authors
Yehia A. Hassanean1; M.M. Rashwan1; Kamal A. Assaf1; Khaled Abd el Samee2
1Staff in Civil eng. Deptartment, Assiut University
2Assistant lecturer, Civil eng. Dept, Souhag University
Abstract
This experimental study investigates the influence of replacing certain ratios of natural aggregate by recycled concrete aggregate on properties of fresh and hardened concrete. Two maximum nominal sizes of aggregate used in this study 40 mm and 20 mm, the source of used recycled concrete aggregate comes from the demolitions of the upper skeleton of Al-AZHAR building in Sohag. Thirty six mixes were designed and carried out to study the effect of both aggregate size and replacement ratios on concrete properties, the replacement ratio of recycled aggregate changed from 0 to 50% using of two sizes of aggregate 20 and 40 mm. A slump and compacting factor were measured to express fresh concrete properties, hardened concrete properties were expressed by compressive strength tests after 7 and 28 days, pull out bond strength, splitting tensile strength and flexure strength. Test results shows the bad effect of replacing natural aggregate by recycled concrete aggregate on both fresh and hardened concrete properties.
Keywords
Recycled Concrete Aggregate - Natural Aggregate; slump - compressive strength - Flexural strength
Main Subjects
Civil Engineering: structural, Geotechnical, reinforced concrete and steel structures, Surveying, Road and traffic engineering, water resources, Irrigation structures, Environmental and sanitary engineering, Hydraulic, Railway, construction Management.
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