Because the basic functions and principles are very similar, it is always difficult to make clear the anchoring adhesive and anchor bolts. Many people think it is a concept. In fact, the relationship between them can be summed up in one sentence, that is, "the common point is basic, the differences are partial, and we can seek common ground for differences."

• Planting bars can match different specifications of screws, while chemical anchor can only match standard screws.

• The chemical anchor bolts are generally relatively short, the anchor depth is shallow, the adaptability of the base material fissures is poor, the bearing capacity is low, and the post anchorage connection of the tensile and edge shear composite forces and the lifeline engineering structural members is not suitable. The reinforcement is similar to the reinforcement anchorage of the cast-in-place concrete, and the damage form is easy to control and generally can control the position. It is suitable for anchorage connections of structural members and non structural members with static strength of less than 8 degrees.

• Planting bar adhesive needs to fill 2/3 of the hole depth, while chemical anchor bolts put the medicine tube into the hole and then select the screw to anchor it.

• The force principle is different: rebar planting must be full screw or ribbed reinforcing bar, using adhesive force to achieve force; anchor bolt allows a light surface screw, using mechanical locking force to carry out force.

• The anchorage depth is different: the anchorage depth of anchor bolts is less than 10d, and the anchorage depth of planted bars is generally larger than 15d after calculation.

• The form of damage is different: in general, the failure form of rebar is only one type of damage, and the failure forms of anchor bolt are: anchor steel failure and concrete cone damage.
  

Why not choose the chemical anchor bolt for post installed anchor?

• Anchor bolts are not suitable for tensile structural members, only for non structural members.

• The chemically planted bars and screws suitable are suitable for tensile structural members and non structural components.