| Popis: |
''Lightweight structural concrete has a major role in the reduction of earthquake damages. Lightweight concretes have the disadvantages of lower compressive, flexural, and impact strengths compared to the common concretes. Optimization in lightweight concrete due to its lower efficiency than conventional concrete requires the use of materials that, while maintaining environmental sustainability, improve the mechanical behavior and seismic performance of concrete. In this paper, considering the environmental aspects, various ratios additive effects of Micro Silica, Glass powder, and polypropylene Fibers have been experimentally investigated, in order to find the optimized amount of these materials for the purpose of improving the mechanical and seismic performance of the lightweight concrete.'' ''The results show that an optimized usage of Micro Silica and Glass powder in the lightweight concrete, turns it into a high-performance concrete with 65% increase in the strength. Also, the use of an optimized amount of ''polypropylene ''Fibers to a high-performance concrete, significantly enhances the compressive strength, flexural strength, ductility, energy absorption capacity, and impact resistance ratios of the ''polypropylene ''fiber reinforced concrete.'' |
