Precautions for the repair of concrete cracks

Before cracks are repaired, we need to measure the cracks first and choose the appropriate method according to the width of the cracks. When the crack width is less than 0.2mm, the crack repair glue is closed. When the crack width is in the 0.2mm~1.5mm, the crack injection adhesive should be injected into the fracture cavity with a certain pressure to strengthen and close the fracture cavity.

2020-05-29 09:55:54

Advantages of structural strengthening by carbon fiber fabric

Structural strengthening bycarbon fiber fabric is a new type of modern reinforcement technology, which occupies a large proportion in the reinforcement of reinforced concrete(RC) structures, and CFRP is becoming more and more popular 。.

2020-03-30 13:42:13

Calculation of the dosage of rebar anchoring adhesive

According to the 10 years experience of post installed anchoring, there is a formula for the amount of HM-500 injectable anchoring adhesive​:

2020-03-30 13:40:40

Reinforcement steel bar pull-out test

The tensile test of steel bar is the field test of the anchoring force. After 48-72 hours of rebar planting, the tension meter (Jack) can be used to carry out the drawing test of the reinforced bar.

2018-07-10 17:17:59

Fire resistance of carbon fiber reinforced concrete members

Through the analysis of the fire-resistant properties of various parts, it is found that the original reinforced concrete part and carbon fiber fabric have good fire resistance, while the refractory performance of the adhesive is poor.

2020-03-30 13:39:44

Reinforcement of concrete beams with prestressed CFRP

Compared with the traditional carbon fiber reinforcement method, the high strength performance of the prestressed CFRP can be effectively used. The reinforcement effect is greatly improved than the CFRP, and it also has the advantages of CFRP reinforcement. It has shown remarkable effects in improving the flexural rigidity, bearing capacity, reducing the structural deformation and restraining the development of cracks.

2020-03-30 13:38:20
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