In recent years, some anchor bolts with right angles or heads are popular because of their pullout resistance. These types of anchor bolts are usually embedded in a port with washers and nuts for related matching, and even usually need to be welded. The diameter and length of right angles, called L-shaped anchor bolts, are widely used, and sometimes the washers are welded.
Some anchor bolts are usually used to fix large steel structures when they are poured. For the support of light poles or large buildings, most of the anchor bolts in this category generally have grades 36, 55 and 105. L-type bolts are generally standard parts of this category. If you have other requirements for such anchor bolts, you can also come to the drawing, and we will manufacture non-standard bolts of relevant specifications according to their specifications.
Working principle of foundation bolt
When using foundation bolts, we generally think that the foundation bolts will be grouted with concrete, because the foundation bolts must be fixed before they are poured, so that we can carry out the relevant pouring, or even install them after setting 60% of the strength.
After the anchor bolts are put into the holes, fix them in place by turning the nuts at the top and tighten them. They work through the friction process between the anchor bolt and the wall surface of the hole drilled into the concrete or masonry grouting.
The time required for concrete to cure depends on several factors, including the type of concrete used, your area, ambient temperature, and relative humidity. In addition, if the admixture is added to the concrete, the curing time will also be affected.
However, in general, the concrete should be cured within 3 to 7 days. At this time, the concrete shall reach about 60% of its design strength. After this time, it should be possible to drill into the concrete to fix the anchor bolts in place.