Reinforcing bar reinforcement is the combination of rebar and concrete structure by using chemical reinforced adhesive. Because of its easy operation and convenient construction, good chemical reinforced adhesive even has the same effect as embedded. It is widely used in the field of building reinforcement. The connection of reinforced structures, and the addition of shear walls are all inseparable from the reinforcement of planting bars. So what are the factors that will affect the planting bar reinforcement?
Curing schedule of chemical reinforced adhesive at different temperatures
1. The temperature factor
When the temperature is within the range of 5 ~ 40 ° C if the chemical plant glue is strengthened, the effect is better. The curing reaction speed increases with the use of temperature, and decreases with the decrease. When it exceeds 40 ℃, if the curing is very fast in the summer and high temperature season, the operation time is very short. At this time, the amount of each preparation should be reduced, and it should be used immediately. When the use temperature reaches 60 to 80 ° C, the adhesive strength of ordinary adhesive is significantly reduced, and medium temperature resistant adhesive should be used. When the use temperature exceeds 80 ℃, high temperature resistant chemical reinforced adhesive should be used, and effective insulation measures should be adopted. When the ambient temperature is lower than 5 ° C, the glue will become very thick or crystallized due to the low temperature. At this time, if the A and B components of the construction chemical reinforced adhesive are heated in a water bath with a warm water pot, instead, it will get better results (for specific water bath heating temperature, please refer to the instructions or ask the manufacturer).
2. The quality of chemical reinforced adhesive Good chemical reinforced adhesive has the characteristics of long construction time, fast loading, earthquake resistance, impact resistance, fatigue resistance, moisture and heat aging resistance, acid and alkali resistance, and no creep. The glue is guaranteed for 50 years.
3. Pulling test. If the pull test is performed before the curing, it may cause the uncured chemical adhesive to loosen, and even worse, the steel bar may be pulled out again, and the hole is basically useless. Now, be sure to pay attention to the curing time of the chemical reinforced adhesive that you bought, and then perform the pull test after it is completely cured.
Excellent Mankate Chemical Reinforced Adhesive
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(Editor: Nanjing Mankate, if you need to reprint, please indicate the source)
