As a commonly used building reinforcement method nowadays, although the construction technology of rebar planting glue reinforcement is relatively mature, in actual construction, non-standard construction situations still occur from time to time, which seriously affects the quality and safety of rebar planting projects. Today, let the editor deeply interpret the "two nos" principle in rebar planting projects for everyone to ensure the quality and safety of reinforcement projects.

The "two nos" principle in rebar planting glue reinforcement mainly refers to "rebar" and "glue". "Rebar" refers to steel bars, and "glue" generally refers to rebar planting glue.
I. "Rebar" in the two nos principle

First, let's talk about one of the "two nos" principles, "rebar". Plain round steel bars shall not be used for rebar planting.
The surface of plain round steel bars is smooth without texture. Compared with ribbed steel bars, there are no ribs. Due to the lack of mechanical keyways, the long-term anchoring performance of plain round steel bars cannot be guaranteed, which may bring safety hazards to load-bearing structures. Coupled with the fact that some regions are frequently hit by earthquakes, even for rebar planting projects in non-earthquake-stricken areas, plain round steel bars should be avoided.
Importance of seismic reinforcement: To improve project quality and enhance the seismic performance of houses, the use of plain round steel bars must be restricted.
Improve rebar planting effect: By using non-plain round steel bars, ensure the anchoring effect of rebar planting projects and avoid structural safety problems caused by rebar slippage.
II. "Rebar planting glue" in the two nos principle
The other item in the "two nos" principle is "glue", that is, "rebar planting glue". Rebar planting glue that has not undergone safety appraisal shall not be used.
(Complete test reports) As an important material in rebar planting reinforcement, the safety appraisal of rebar planting glue is crucial. This includes basic performance appraisal, long-term service performance appraisal, and medium resistance performance appraisal. These appraisals are directly related to the quality of rebar planting glue and then affect the quality of the entire rebar planting project.
The environmental protection performance of rebar planting glue is also very important. Because people pay more and more attention to environmental protection awareness, the selected rebar planting glue needs to pass relevant non-toxicity tests and have a non-toxicity test report for rebar planting glue. If environmentally friendly and non-toxic rebar planting glue is not used, pungent odors or harmful gases may be emitted.
The service life performance test of rebar planting glue should also be highly emphasized. Choosing rebar planting glue that meets the 50-year standard for design service life can well ensure the safety and reliability of its rebar planting project.
Rebar planting glue that has not undergone safety appraisal will encounter many problems during use, such as uneven mixing, bubbles, weak bonding, poor curing, and failure to pass the pull-out test. On the surface, only rebar planting glue is wasted. However, in fact, what people overlook is the safety of rebar planting projects.
Summary of the "two nos" principle

The "two nos" principle of rebar planting reinforcement projects, although seemingly strict, is actually to ensure the safety and quality of the projects. Relevant personnel for structural reinforcement must strictly abide by these principles and there must be no negligence. By using rebar planting glue that has undergone safety appraisal and avoiding the use of plain round steel bars, we can well improve the quality and safety of rebar planting projects and provide a solid guarantee for the reinforcement of building structures.