Adhesive steel reinforcement products
SHB-C702
SHB-C702 Grouting steel sticking glue is A, B two-component modified epoxy structural adhesive, is a
- Product Model: SHB-C702
- Specification: 30g/group
- Mix ratio: A:B=2:1
- Torage period: 12 months
Product Introduction
SHB-C702 Grouting steel sticking glue is A, B two-component modified epoxy structural adhesive, is a kind of special adhesive suitable for fixing and then pouring adhesive steel.
Product features
·Modified epoxy resin, free of styrene, safe and non-toxic.
·Strong adhesion and shearing force.
·Good aging resistance and medium resistance (acid-alkali brine).
·Strong impact resistance, seismic performance, good toughness.
·The hardening process is less contractile.
Performance parameters
|
Inspection
item |
Qualification
standard |
||
|
Colloidal Property |
Tensile
strength (MPa) |
≥30
|
|
|
Tensile
E-modulus (MPa) |
≥3200 |
||
|
Elongation (%) |
≥1.2 |
||
|
Bending
strength(MPa) |
≥45,without
fragmented damage |
||
|
Pressure
strength (MPa) |
≥65
|
||
|
Bonding Ability |
Standard
value of steel-steel tensile shear strength (MPa) |
Standard
value (23±2) ℃, (50±5) %RH |
≥15 |
|
Average
(60±2) ℃, 10min) |
≥17 |
||
|
Average
(-45±2) ℃, 30min) |
≥17 |
||
|
Steel-steel
tensile strength (MPa) |
≥33 |
||
|
Steel-steel T
impact stripping length (MPa) |
≤25 |
||
|
Steel-C45
pulling bonding strength (MPa) |
≥2.5,damaged
as concrete cohesive failure |
||
|
Thermal
deformation temperature (℃) |
≥65 |
||
|
Non-volatile
matter content (%) |
≥99 |
||
Performance Index
|
|
Inspection item |
Qualification index |
|
Environmental resistance |
Wet and heat ageing resistance ability (%) |
Compared with the short-term results at room temperature,
the decrease rate of shear strength ：≤ 12 |
|
Heat aging resistance (%) |
Compared with the short-term results at same
temperature 10min, the decrease rate of shear strength : ≤ 5 |
|
|
Freezing and thawing resistance ability (%) |
Compared with room temperature, short-term results,
the shear strength decrease rate is not greater than : ≤ 5 |
|
|
Stress resistance ability |
Resistance to fatigue stress |
After
2×106 times continuous sine wave fatigue loads,specimen does not
destory |
|
Long-term stress resistance |
The steel to steel tensile shear specimens does not
destroy,and creep deformation value is less than 0.4mm |
|
|
Dielectric resistance |
Salt spray resistance (%) |
Strength reduction rate compared with the control
group: ≤ 5%, and no cracks or degumming |
|
Alkaline medium resistance (%) |
The strength does not decrease compared with the
control group, and the concrete is damaged, and the appearance must not have
cracks, peeling or foaming |
|
|
Resistance to acid media (%) |
The concrete is damaged, and the appearance must not
be cracked or degummed |
|
|
Remarks: Judgment basis: GB50728-2011
"Technical Specification for Safety Evaluation of Engineering Structural
Reinforcement Materials" (Table 4.2.2-2) (Table 4.8.1) (Table 4.2.2-4)
(Table 4.2.2-5) |
||
Curing time
|
Ambient
Temperature(℃) |
Time
of Operate(min) |
Cure
Time(h) |
|
-5 |
80 |
72 |
|
0 |
70 |
72 |
|
10 |
60 |
72 |
|
20 |
40 |
48 |
|
30 |
40 |
48 |
|
Note: When the ambient temperature is lower than -5℃, the curing time can be extended according to the above table. |
||
Application scope
·Concrete members are reinforced by wet cladding steel plates.
·A large area of steel plate outside the bridge and other components is reinforced with cemented steel.
·The bearing capacity of the beam and column can be greatly improved by reliably connecting the Angle steel and steel hoop with the original concrete beam and column as a whole.
·Concrete members, brick members and wood members are reinforced by pouring and bonding of steel plates.
·Concrete cracks (1-5mm), internal defects (honeycomb, holes) grouting repair.
·Anchor bolts, secondary grouting of equipment bottom plate, epoxy resin free-flow floor construction.
Construction video images
· Substrate treatment: The concrete surface should be chiseled away the coating layer, and then polished with an Angle grinder to remove the 1-2mm thick surface. After polishing, use the compressed air machine to blow the floating dust, and finally wipe the floating dust with cotton cloth, keep dry for use.
· Steel plate treatment: cut, weld, install and fix the section steel according to the design size, and weld the plate to form a whole.
· Steel plate installation: SHB-D802 sealant should be used to close the gap between the Angle steel and the steel plate filling nozzle. The glue liquid should be evenly applied to avoid small holes and bubbles, and the thickness should not be less than 5mm to prevent bursting during pressure. The glue filling nozzle is arranged every 0.5 to 1 meter, and the exhaust nozzle is arranged on the top.
· Closed inspection: 24 hours after the joint is sealed, after the glue is initially cured, a layer of soapy water can be applied around the section steel and steel plate, compressed air can be used to check the sealing effect and understand the connectivity of the crack. If the air leakage part is found, it is re-sealed with glue.
· Preparation of glue: Weigh and fully mix SHB-C702 poured adhesive steel structural glue in accordance with the required ratio, SHB-C702 poured adhesive steel structural glue at 25℃, 0.4Mpa application period of about 33 minutes, it is recommended to use within 20 minutes after preparation. The increase of pressure and temperature, and the increase of single dispensing amount will cause the shortening of the application period.
· Glue injection: Start filling glue in order from low to high according to the glue filling nozzle. After a glue filling nozzle is released, the pre-connected transparent tube can be temporarily tied with a wire until the top exhaust nozzle is completely released.
· Static maintenance: After completion of construction, SHB-B604 epoxy building reinforcement adhesive or SHB-D802 sealing adhesive should be used to seal the steel plate completely, and anti-corrosion treatment should be carried out to achieve the design strength requirements after 7 days of maintenance.
Notes
·In the preparation of construction should be kept well ventilated, paste surface clean, no oil.
·The curing temperature is not less than 5℃, the curing time is not less than 3 days when the ambient temperature is 20-25℃, and the curing time is not less than 7 days when the average temperature is 10℃.
·Gloves, masks, goggles, safety hats and other protective equipment must be equipped during construction.
·If accidentally on the skin or clothing, can be washed with acetone and plenty of water rinse.
·If ingested or spilled into eyes, seek medical attention immediately.
·Glue for ultra-low temperature or high temperature environment, can be specially produced.
