求翻译：钢纤维混凝土是一种性能优良的新型复合材料。与普通混凝土相比，其抗拉、抗弯、抗裂及耐磨、耐冲击、耐疲劳、韧性等性能都有显著提高，它不仅可使面层减薄，缩缝间距加大，改善路面的使用性能，延长路面使用寿命，而且还可节省工程造价，缩短施工工期。是什么意思？

Steel fiber reinforced concrete is a good performance of new composite materials. And compared to normal concrete, its tensile, flexural, crack resistance and wear resistance, impact resistance, fatigue resistance, toughness, performance has significantly improved, it not only allows the surface thinning, dwarf slit spacing increase, improve the performance of pavement, lengthen service life, but also to save construction cost, shorten the construction period.