The expansion of knowledge on how fibers affect mortar has led to recommendations for structural design. In this study, the effect of HPFRCC on the performance of reinforced concrete beams with and without polypropylene fibers on the energy absorption and hardness of the specimens was investigated. In ...
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The expansion of knowledge on how fibers affect mortar has led to recommendations for structural design. In this study, the effect of HPFRCC on the performance of reinforced concrete beams with and without polypropylene fibers on the energy absorption and hardness of the specimens was investigated. In this regard, a reference beam and four beams reinforced with a thin layer of HPFRCC in the lower part of the beams with polypropylene fibers were tested under a four-point bending test and the effect of reinforcement on energy absorption and hardness was investigated and compared.
In this study, the cracking force in HPFRCC reinforced beams was compared to reference beams. In this regard, a reference beam and four beams reinforced with a thin layer of HPFRCC in the lower part of the beams were subjected to four-point pure bending experiment and finally the impact of reinforcement ...
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In this study, the cracking force in HPFRCC reinforced beams was compared to reference beams. In this regard, a reference beam and four beams reinforced with a thin layer of HPFRCC in the lower part of the beams were subjected to four-point pure bending experiment and finally the impact of reinforcement on the resulting forces is investigated and compared. In the reference concrete beam, the cracks are coupled with the tensile stress-strain curvature softening and the structural bearing capacity decreases with increasing cracks. Therefore, relying on reinforcement is essential to maintain the structure. However, in the lower layer beams of the HPRFCC the microtracks allow the material to enter the hardening stage and increase the bearing capacity. This increase is more noticeable in specimens with more fibers.
The construction industry is one of the most important users of nanostructured materials due to its requirements in terms of strength, durability and high performance. The nanosilica and nanomaterials are discussed and the results of the new state experiments of slump current, T50, hopper time V, and ...
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The construction industry is one of the most important users of nanostructured materials due to its requirements in terms of strength, durability and high performance. The nanosilica and nanomaterials are discussed and the results of the new state experiments of slump current, T50, hopper time V, and box L are investigated. According to the results for all the designs made in this project, the slump flow is reduced compared to the control sample. With nanomaterials, this slump reduction is much more visible. Also, due to the slump decrease in T50 time by adding nanomaterials, we observed that by adding nanomaterials, this increase is longer than the designs containing nano-silica and in this study the funneling time is increased by adding nanomaterials, which increases in the samples containing Nano-copper is much clearer.
