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钢纤维混凝土在城市建设中起到了很重要的作用
钢纤维混凝土在城市建设中起到了很重要的作用,当然,这也是基于它独特的优点得到了工程建筑的普遍认可。在道路建设中要求路基抗压能力强,而纤维正好能够满足这种需求,因此它被应用在门路铺设上。
由于钢纤维混凝土表面有细小的纹路对混凝土起到了一种链接的效果,这就是体现了该产品的优越性。纤维的使用有效地克服了传统抢修材料固化慢,需要长时间养护,易开裂的缺点,保证了抢修工程的质量以及减少了交通方面的不便。钢纤维作为一种新型高效的市政道路抢修材料,市场前景广泛。
弯曲韧度是钢纤维喷射混凝土主要利用的性能,一般要求在设计中对于韧度方面要有明确的规定。目前国内隧道设计规范中对钢纤维喷射混凝土的韧度暂无规定,日本,韩国,及欧洲的规范中,对用于地下工程中的纤维喷射混凝土的弯曲韧度系数值大多规定在至少应达到68%以上。我国目前在隧道工程中的纤维喷射混凝土设计中应用的“弯曲韧度系数”值也大多在此范围。
Steel fiber reinforced concrete (SFRC) plays an important role in urban construction. Of course, it is also widely recognized by engineering buildings based on its unique advantages. In road construction, the subgrade is required to have strong compressive capacity, and the fiber can meet this demand, so it is applied in the pavement of doors and roads. Because of the fine grain on the surface of steel fiber reinforced concrete, it has a link effect on concrete, which reflects the superiority of the product. The use of fibers effectively overcomes the shortcomings of slow solidification, long maintenance and easy cracking of traditional rush repair materials, ensures the quality of rush repair projects and reduces traffic inconvenience. As a new and efficient material for rush repair of municipal roads, steel fiber has wide market prospects. Flexural toughness is the main performance of steel fiber shotcrete. It is generally required that the toughness should be specified clearly in design. At present, there is no regulation on the toughness of steel fiber shotcrete in domestic tunnel design codes. In Japanese, Korean and European codes, the flexural toughness coefficient of steel fiber shotcrete used in underground engineering should be at least 68%. At present, "flexural toughness coefficient" values applied in the design of fiber shotcrete in tunnel engineering are mostly in this range.
Steel fiber reinforced concrete (SFRC) plays an important role in urban construction. Of course, it is also widely recognized by engineering buildings based on its unique advantages. In road construction, the subgrade is required to have strong compressive capacity, and the fiber can meet this demand, so it is applied in the pavement of doors and roads. Because of the fine grain on the surface of steel fiber reinforced concrete, it has a link effect on concrete, which reflects the superiority of the product. The use of fibers effectively overcomes the shortcomings of slow solidification, long maintenance and easy cracking of traditional rush repair materials, ensures the quality of rush repair projects and reduces traffic inconvenience. As a new and efficient material for rush repair of municipal roads, steel fiber has wide market prospects. Flexural toughness is the main performance of steel fiber shotcrete. It is generally required that the toughness should be specified clearly in design. At present, there is no regulation on the toughness of steel fiber shotcrete in domestic tunnel design codes. In Japanese, Korean and European codes, the flexural toughness coefficient of steel fiber shotcrete used in underground engineering should be at least 68%. At present, "flexural toughness coefficient" values applied in the design of fiber shotcrete in tunnel engineering are mostly in this range.
