Reinforcement with rebar adhesive is a common and effective method for strengthening building structures, and it has shown many advantages in practical applications.        However, "there is no gold that is pure and no man who is perfect," no technology can be perfect, and this is also true for rebar adhesive reinforcement, which has some "shortcomings" that require us to take corresponding measures to make up for.

Analysis of common shortcomings in rebar adhesive:

Rebar adhesive is greatly affected by temperature and humidity;

Rebar adhesive is not pre-embedded, and under normal circumstances, the reinforcement strength is hard to be equivalent to that of pre-embedding;

Drilling holes causes corresponding damage to the concrete structure, and concrete with low strength is prone to cracks;

The construction process of rebar adhesive reinforcement may produce certain environmental pollution;

If the hole is not cleaned thoroughly, it will affect the anchoring strength.

From the above issues, several points can be analyzed, among which the main shortcomings are divided into: construction shortcomings and product quality-induced shortcomings.

Let's start with the shortcomings in construction.        Issue 3, where drilling holes causes corresponding damage to the concrete, and issue 5, where uncleaned holes affect the anchoring strength, are both issues of construction process standardization.

Therefore, in the process of rebar adhesive reinforcement, we need to follow the relevant design requirements for drilling and cleaning holes: mark the position, size, and depth of the holes first.        Drilling holes should be kept vertical and neat to avoid deviation or damage.

When cleaning the drilled holes, use brushes and air compressors for a "three blow and three brush" style of hole cleaning.

Issue 1.        Rebar adhesive is greatly affected by temperature and humidity;        Issue 2.        Under normal circumstances, the reinforcement strength of rebar adhesive is hard to be equivalent to that of pre-embedding;        Issue 4.        Rebar adhesive reinforcement will produce corresponding pollution.        These three shortcomings are all product-related issues.

The shortcomings of rebar adhesive being greatly affected by temperature and humidity:

Shanghai Shibang rebar adhesive will adjust the formula according to winter and summer, and when using it, the winter formula adhesive should not be used in summer because the summer temperature is too high for the winter formula adhesive, which will cure very quickly;        at the same time, the summer adhesive should not be used in winter, as it will cure very slowly, and the adhesive will become very thick.        For the specific curing time of rebar adhesive, you can refer to the following picture:

The shortcomings of weak anchoring force of rebar adhesive:

Using Shanghai Shibang rebar adhesive, it has strong adhesion, and its anchoring performance is similar to that of pre-embedding, with high compressive strength and carrying capacity.

The shortcomings of environmental pollution caused by the rebar process:

Shanghai Shibang rebar adhesive can also avoid this well.        Shibang rebar adhesive uses modified epoxy resin, which contains no solvents, is safe and non-toxic, and will not cause large-area pollution to the construction environment.        And Shibang rebar adhesive also has non-toxic detection reports, acute oral toxicity tests.

Rebar adhesive reinforcement, as a common method of building structure reinforcement, has some "shortcomings" in practical application.        To make up for these shortcomings, a series of measures need to be taken, including choosing the right rebar adhesive and standardized construction processes, etc.

Only through these measures can we ensure the smooth progress of the rebar adhesive reinforcement work and achieve the expected reinforcement effect.        Even if these "shortcomings" are encountered, there is no need to worry too much.