Spiral bars, also known as spiral stirrups, are steel bar components that continue as a whole. The steel bar skeletons bound and formed by screw hoops are tightly combined in many triangles, and their stability is outstanding, reliable and strong. In the process of concrete pouring and tamping, the products can ensure that the steel products can withstand severe disturbances, collisions and tramples without losing shape or deformation. Spiral reinforcement is often used together with prestressed plastic bellows, prestressed steel bars and other materials. Due to the advantages of low cost and convenient installation, spiral reinforcement is used together with prestressed materials in bridges, railways, tunnels and other projects.
Everyone has a way: the important thing is to see whether the color of the spiral bar is the regular silver color, which is generally the color of the genuine product. Nowadays, many small manufacturers will use some low-hardness steel instead of high-quality steel when making counterfeit spiral bars. After the steel is manufactured, no problem can be seen from the appearance alone, but many experienced friends will find that these poor-quality products have some small black spots inside their steel rings. These small black spots are left by some sundries in the inferior steel. The spiral bars made of normal high-quality carbon chromium steel will not have such a situation, so when we encounter such spiral bars, no matter their No matter how low the price is, don't buy it. These products have a very short lifespan during use, and sometimes they don't work at all.
How to choose spiral reinforcement?
2023 03/13