| 钢纤维促进了建筑技术的提升 |
| 添加时间：2017/8/28 14:56:51 浏览次数： |
| 在混凝土中掺入适量钢纤维，其抗压强度提高10%~80%(C50以上混凝土提高幅度显着)，抗拉强度提高50%~100%，抗弯强度提高50%~80%，抗剪强度提高50%~100%。试验表明，长度为5~15mm，长径比为10~30的超短钢纤维抗压强度提高幅度较短纤维大得多，但抗拉强度、抗折强度较短纤维低得多。 In concrete with appropriate amount of steel fiber, its compressive strength increased by 10%~80% (above C50 above concrete increase amplitude significantly), tensile strength increased by 50%~100%, flexural strength increased by 50%~80%, and shear strength increased by 50%~100%. The experimental results show that the compressive strength of the ultra short steel fiber with a length of 5~15mm and a length diameter ratio of 10~30 is much shorter, but the tensile strength and flexural strength are much shorter and the fiber is much lower. 用于建筑工业的钢纤维一般选用低碳钢冷拉剪断型纤维，具有无需加抗锈剂，防腐剂等优点，并能提高预制件的性能2-6倍，可代替或减少钢筋用量，缩短钢筋加式制作时间，提高机械化施工程度，可达到普通施工施工方法无法达到的效果，比如抑制屋顶开裂，涵洞漏水等。波纹钢纤维用于高速公路面桥梁、水泥枕木、防爆仓库、核实验场、火箭发射场预制应力的混泥土构件等。隧道窑台面，电厂锅炉个烟道，以及其他有严重急冷急热，机械功能冲击的易裂磨条件下使用耐火料衬里和预制件。 For the selection of steel fiber in the construction industry generally low carbon steel cold cut fiber, with no need to add anti rust agent, preservatives and other advantages, and can improve the performance of precast 2-6 times, can replace or reduce the amount of the steel reinforced type, shorten production time, improve the degree of mechanization construction can achieve the common construction methods cannot to achieve the effect, such as inhibition of roof crack, culvert Water Leakage etc.. Corrugated steel fiber is used for highway surface bridges, cement sleepers, explosion proof warehouses, nuclear proving ground, rocket launching site, prefabricated stress concrete components, etc.. Refractory materials, linings and preforms shall be used in tunnel kiln tables, power plants, boilers, flues, and other easily cracked mills with severe cold, hot, mechanical, and mechanical impact. 钢纤维的应用广泛性已经超出了预期，对于建筑行业的作用也是非常巨大的，直接促进了建筑技术的提升和经济的发展，产品有着较高抗剪性、抗弯性和抗拉性，而且收缩率极低，可以有效阻止裂缝的产生，而且和易性好，能够通过搅拌均匀的分布在混凝土中，而且不裸露、不结团，可以有效节约混凝土的使用量，并可以取代普通钢筋，对我们的生活起着相当大的作用。 The wide application of the steel fiber has exceeded expectations for the role of the construction industry is very huge, directly promoted the development of economy and improvement of construction technology, the product has a resistance, bending resistance and tensile shear and high shrinkage rate is extremely low, can effectively prevent cracks, and easy well, through the distribution of homogeneous mixing in concrete, and is not exposed, do not cluster, can effectively save the usage of concrete, and can replace the ordinary steel, plays an important role in our life. |
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