| Title |
Evaluation of Compressive Performance of Lightweight Aggregate Concrete Reinforced with Micro-Steel Fibers |
| Authors |
이혜진(Lee, Hye-Jin) ; 양근혁(Yang, Keun-Hyeok) ; 김학영(Kim, Hak-Young) ; 이연정(Lee, Yeon-Jeong) |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.5.181 |
| Keywords |
Lightweight aggregate; Micro steel fiber; Compressive toughness index; Strength-to-density ratio |
| Abstract |
The present study examined the effect of micro-steel fibers on the compressive performance of lightweight aggregate concrete (LWAC) with a
higher compressive strength-to-density (???? ) ratio. The artificially expanded clay aggregates and expanded waste glass particles were used
for producing LWAC with a higher ???? ratio. Main parameters selected were the designed compressive strength of concrete and volumetric
ratio of the fibers. Test results showed that the present LWAC specimens exhibited a higher ??? than the previous non-reinforced LWAC
mixtures at the same ? . This enhanced ??? was more notable as ? increased from 1,300 kg/m3 to 1,600 kg/m3. In addition, LWAC
specimens reinforced with micro-steel fibers displayed a higher value of compressive toughness index than those reinforced with the
conventional macro-steel fibers at the same fiber reinforcing index. |