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Impact Resistance of Concrete Containing LLDPE–Waste Tire Rubber and Silica Fume | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 4، دوره 11، شماره 1 - شماره پیاپی 29، اردیبهشت 2023، صفحه 60-75 اصل مقاله (1.55 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2022.23456.1511 | ||
| نویسندگان | ||
| Imad A. Khalhen1؛ Reza Aghayari* 2 | ||
| 1Ph.D. Student, Department of Civil Engineering, Razi University, Kermanshah, Iran | ||
| 2Associate Professor, Department of Civil Engineering, Razi University, Kermanshah, Iran | ||
| تاریخ دریافت: 29 اردیبهشت 1400، تاریخ بازنگری: 22 آذر 1400، تاریخ پذیرش: 02 اسفند 1400 | ||
| چکیده | ||
| Some of the desirable properties of concrete include high impact resistance and great energy-sucking capacity to name a few. These properties can be improved through the use of sustainable materials. This study investigated the effects of partly replacing fine aggregate with linear low-density polyethylene (LLDPE) and waste rubber (WR) as fine aggregates on the efficiency of concrete under impact loading. Two water to binder ratio (W/B) percentages of (0.40 and 0.55) were selected, with six (LLDPE-R) replacement grades (0%, 5%, 10%, 15%, 20%, and 30%) and two silica fume (SF) replacement grades (0% and 15%). Six cylinders with 150 and 60 mm were subjected to an impact by a 4.45 kg hammer striking. Test results indicated that impact resistance for the first visible crack and the ultimate failure increased with LLDPE-R content, where it increased by 4.76 times. This study also demonstrated that the impact resistance for the first visible crack of LLDPE-R concrete was improved by an average of 295% for specimens without SF and 292% for specimens containing SF. This enhancement for the ultimate failure is 291% and 290% for specimens without SF and containing SF, respectively. | ||
| کلیدواژه‌ها | ||
| Impact resistance؛ Concrete؛ Silica fume؛ Rubber؛ Drop weight | ||
| مراجع | ||
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