THE RUBBERIZED MODIFIED CONCRETE BEHAVIOR UNDER STATIC LOADING | ||
| The Egyptian International Journal of Engineering Sciences and Technology | ||
| Article 4, Volume 25, EIJEST, Vol. 25, 2018, June 2018, Pages 31-45 PDF (556.51 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/eijest.2018.97240 | ||
| Authors | ||
| S Ahmad* ; M Seleem; M Omar | ||
| Faculty of Engineering, Zagazig University, Egypt | ||
| Abstract | ||
| Application of elastomers in concrete industry has been successful in the last few years perhaps due to some properties of these substances, which make it possible for the elastomers such as rubber aggregates to save the tougher cementitious compounds. This paper investigates the mechanical properties and fracture toughness of rubberized modified concrete under static loading. The natural aggregate was replaced partially with different rubber contents of (5-10-15-20-25-30-40 %) replacement of fine rubber aggregate with size of (1-4)mm, and contents of (5-15-25 %) as a replacement of coarse rubber aggregates with size of (4-20)mm. Laboratory tests include compression and indirect tension were conducted, static flexural test was carried out using square slab specimens. The results from laboratory testing on all concrete specimens were analyzed. It was found that the inclusion of rubber aggregates into concrete will reduce the strength of concrete. The usage of fine aggregate sizes of rubber up to specified dosage, gives better strength of concrete compared that of greater sizes of rubber aggregates.The rubberized modified concrete can absorb fracture energy and has more suitable usage in roads, bridges, airports runways and some of the military defensive constructions such as shelters and fortifications | ||
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