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The fibre orientation influence in cementitious composite against extreme load resistance

机译:纤维取向影响水泥复合材料免受极端负荷阻力

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This paper is focused on resistance of steel fibre-reinforced cement composite against impact of the deformable projectile shot from the 7.62 × 39 caliber. Different values of resistance against impact of the projectile are caused by different orientation of the fibres. The influence of formwork position, which is the main cause of the different orientation of the fibres, is investigated. The resistance was examined on thirty slabs made of ultra-high performance fibre-reinforced concrete (UHPFRC). Fifteen specimens with vertical orientation of formwork and fifteen with horizontal orientation of formwork was made. The resistance is classified according to the visual evaluation and local damage measurement on the front side and the rear side of the examined specimens. The experiment shown positive influence of vertically oriented formwork on the slabs according to their resistance against impact of the projectile.
机译:本文集中于钢纤维增强水泥复合材料对7.62×39口径的可变形射弹射门的影响。 抗射弹抗冲击值的不同值是由纤维的不同取向引起的。 研究了模板位置的影响,这是纤维不同取向的主要原因。 对由超高性能纤维钢筋混凝土(UHPFRC)制成的30个板坯检查电阻。 制作了具有垂直方向的十五个标本和模板水平方向的十五个标本。 根据视觉评估和局部损伤测量在检查样本的正面和后侧进行分类。 实验显示了根据它们对射弹抗冲击的抗垂直定向模板对板坯的正影响。

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