Ahmadi, Nabiollah, Yazdandoust, Majid, Yazdani, Mahmoud. (1400). Simultaneous Effect of Aggregate and Cement Matrix on the Performance of High Strength Concrete. هنرهای کاربردی, 9(3), 26-39. doi: 10.22075/jrce.2021.20803.1431
Nabiollah Ahmadi; Majid Yazdandoust; Mahmoud Yazdani. "Simultaneous Effect of Aggregate and Cement Matrix on the Performance of High Strength Concrete". هنرهای کاربردی, 9, 3, 1400, 26-39. doi: 10.22075/jrce.2021.20803.1431
Ahmadi, Nabiollah, Yazdandoust, Majid, Yazdani, Mahmoud. (1400). 'Simultaneous Effect of Aggregate and Cement Matrix on the Performance of High Strength Concrete', هنرهای کاربردی, 9(3), pp. 26-39. doi: 10.22075/jrce.2021.20803.1431
Ahmadi, Nabiollah, Yazdandoust, Majid, Yazdani, Mahmoud. Simultaneous Effect of Aggregate and Cement Matrix on the Performance of High Strength Concrete. هنرهای کاربردی, 1400; 9(3): 26-39. doi: 10.22075/jrce.2021.20803.1431

Simultaneous Effect of Aggregate and Cement Matrix on the Performance of High Strength Concrete

Journal of Rehabilitation in Civil Engineering
مقاله 2، دوره 9، شماره 3 - شماره پیاپی 23، پاییز 2021، صفحه 26-39    اصل مقاله (1.49 M)
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22075/jrce.2021.20803.1431
نویسندگان
Nabiollah Ahmadi1؛ Majid Yazdandoust* 2؛ Mahmoud Yazdani3
1Department of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
2Department of Civil Engineering, Tafresh University, Tafresh, Iran
3Department of Civil Engineering, Tarbiat Modares University, Tehran, Iran
چکیده
In the current experimental work, the simultaneous effect of fineness modulus, water-to-cementitious materials [W/(C+M)], and also micro silica content were investigated on workability, mechanical and physical properties of high strength concrete. For this purpose, 45 mix-designs were made by selecting five different ratios of micro-silica, three W/(C+M) ratios, and three distributions of particle size and then the slump, compressive strength, elastic modulus, and split tensile strength of each designed concrete mixture were determined. Findings showed that increasing the micro-silica content up to 10 wt% improves the mechanical properties of concrete and then leads to a reduction in strength parameters, so that the effect of changes in the micro-silica content on mechanical parameters of concrete becomes more prominent with increasing and decreasing the fineness modulus of aggregate and W/(C+M) ratio, respectively. It was also observed that increasing the micro-silica content leads to reducing the slump and unit weight of concrete so that this reduction is more noticeable in the low fineness modulus of aggregate and water-cement ratio.

تازه های تحقیق
  • The effect of fineness modulus, water-to-cement ratio and microsilica content were investigated on mechanical and physical properties of concrete.
  • 10% was introduced as the optimal value of microsilica content.
  • Split tensile strength was defined as a function of compressive strength.
کلیدواژه‌ها
Fineness modulus؛ Microsilica؛ Water-to-cement ratio؛ High strength concrete
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