Scope of application of steel adhesive

Scope of application of steel adhesive, performance of steel adhesive, mix ratio of steel adhesive, amount of steel adhesive per square meter, executive standard of steel adhesive, packaging specification of steel adhesive, price of Ruisheng Special Steel Adhesive Factory and GST modified epoxy steel adhesive factory

Scope of application of steel adhesive (* * *)

Structural adhesive for steel bonding is a class A modified epoxy resin structural adhesive with two components of A and B, which has super adhesive force, strong shear force, * * *, good resistance to media (acid, alkali, water), strong impact resistance, room temperature curing, small shrinkage during hardening, no flowing during construction, no volatile solvent, * * *, and easy construction. It can be constructed in a wide temperature range without sedimentation, It is applicable to almost all building substrates.

Curing time
Base material temperature (℃)
five
fifteen
twenty-five
thirty-five
Installation time (min)
≥60
≥45
≥30
≥20
Curing time (h)
ninety
seventy-two
forty-eight
twenty-four
technical parameter
physical property
appearance
Component A
Brown putty
Component B
Gray putty
Viscosity Pas
Component A
15~25
Component B
5~15
mechanical property
Cohesive compressive strength
25 ℃ for 3 days
≥50
Cohesive tensile strength MPa
25 ℃ for 3 days
≥25
Shear strength of steel steel bond MPa
25 ℃ for 3 days
≥20
Steel steel bond tensile strength MPa
25 ℃ for 3 days
≥25
Steel concrete shear strength
25 ℃ for 3 days
C30 concrete damage
Durability
Steel concrete tensile strength MPa
25 ℃ for 3 days
≥ 3.0 (C30 concrete damage)
Artificial aging shear strength
2000h
Strength reduction ≤ 10%
usage method
Key points of steel bonding reinforcement construction:
Surface treatment of concrete and steel plate → unloading of reinforced members → preparation of Shibang adhesive → gluing and pasting → fixing and pressurizing → curing → unloading support → quality inspection → anti-corrosion and sealing treatment
Packaging specification
Drum
20kg/group
Introduction to structural adhesive
The structural adhesive has high strength (compression strength>65MPa, steel steel positive tensile bonding strength>30MPa, shear strength>18MPa), can withstand large loads, and is resistant to aging, fatigue, corrosion, and has stable performance within the expected life. It is applicable to the bonding of structural parts bearing * * *.
Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for bonding structural parts.
The service life of the construction project is generally more than 50 years, and the components bear large complex stress, which is directly related to the life and property safety of personnel. Structural adhesive shall be used for bonding.
In engineering, structural adhesive is widely used, mainly for reinforcement, anchoring, bonding and repair of components; Such as sticking steel, sticking carbon fiber, planting reinforcement, crack reinforcement, sealing, hole repair, spike sticking, surface protection, concrete bonding, etc.
Sticking steel glue for editing
characteristic
Sticking steel glue
Product type: structural reinforcement material
Product name: steel adhesive
Product features: The structural steel adhesive is a two-component, cohesive reactive structural reinforcement material. Component A and component B are stored separately, and when used, they can be fully mixed evenly according to the ratio of component A: component B=2:1. It has the characteristics of not affecting the use space of buildings, not changing the appearance of structural members, uniform stress at joints, high cohesive, adhesive and shear strength, aging resistance, and excellent fatigue performance. In the same project, according to the construction habits, steel glue and rebar planting glue have mutual versatility.
purpose
The adhesive for steel structure is paste with thin state and good thixotropy. It is mainly used for the bonding and reinforcement of concrete components, masonry components and steel components to steel plates, and for the installation of curtain walls; Bonding installation of marble, granite, tile, etc; Repair and bonding of concrete members and steel members.
performance
Main technical performance indicators
Temperature resistance of components A and B (℃/MPa) 80/18
Colloid self strength (Mpa) Compressive strength 70 Density after mixing (g/cm) 1.4~1.6
Recommended proportion (weight ratio) of tensile strength 20 A: B=3:1
Elastic modulus 1.2x10? Operating temperature (℃) - 5~40
Steel steel bond strength (Mpa) Shear 22 Operation time (min) 20~40
Stretching 35
Steel concrete bonding strength C60 Concrete damage and curing time (h) 25 ℃ 3~6
5℃ 12~36
90 day damp heat aging resistant steel steel shear strength reduction percentage<10% Water resistance (boiled at 100 ℃) (h/MPa) 72/16
All performance indexes of the product meet the requirements of Grade A adhesive in Code for Design of Concrete Structure Reinforcement (GB50367-2006)
Process flow: surface treatment of concrete and steel plate → colloid preparation → bonding → pressure fixation → anti-corrosion treatment of steel plate surface
explain
instructions
1. Glue preparation: now mix the components A and B of the structural steel glue separately, and then mix them evenly according to the ratio of component A: component B=2:1 (weight ratio), and they can be used.
Precautions for glue preparation
(1) When the temperature is low, components A and B should be warmed in a 60-80 ℃ warm water pan (bucket) to reduce their viscosity. (2) Components A and B shall be respectively obtained from containers. First, take 2 components A and put them into the prepared container, and then take 1 component B and put it into the prepared container, stirring evenly.
2. Steel bonding: clean the bonding surface of the bonded steel plate, apply the adhesive evenly in a dry environment, contact, press down and fix the adhesive.
3. Curing: This product is suitable for use in the construction environment below 60 ℃, and the initial setting time is 1.5 hours under normal temperature. It can be fully cured in one day at normal temperature, and can also be cured in negative temperature and humid environment, and the curing time can be appropriately extended.
Key points of construction
Before construction, better formula shall be prepared according to the comprehensive conditions of environment, temperature and process. Grind the concrete surface with diamond pieces until the new sand and stone surface is exposed, and then clean the dust. The oil stain on the steel plate surface shall be removed, and then the surface shall be polished and cleaned. The concrete and steel plate shall be drilled every 500~1000mm, and the steel plate shall be fixed and pressurized with bolts after being glued.
Construction step editing

Construction process
Surface treatment of concrete and steel parts → selection and fabrication of fixed components → preparation of bonded steel type building structural adhesive → application of adhesive and bonding of steel plate → fixation, pressurization and curing → removal of fixed pressurized components → quality inspection → surface protection and anti-corrosion treatment → handover and acceptance
Construction process
① Bonding surface treatment: the concrete surface shall be polished with an angle grinder until the new surface is exposed, and the dust shall be removed; The steel plate shall be grinded and roughened with an angle grinder.
② Preparation of fixed components: different fixing methods shall be selected according to the requirements of processing technology and the pasting conditions of different parts.
③ Glue mixing: First, mix the components A and B evenly, then pour the components A and B into the container according to the weight ratio of 4:1, and use the electric mixer or other bars to mix at a constant speed until the color is consistent. Generally, 6-10kg is appropriate for one glue mixing. ④ Bonding: apply the evenly stirred glue to the surface of the object to be glued. Generally, the glue layer is 2mm thick, and the middle is thick and the two sides are thin. Then carry out bonding and pressurization to make the glue overflow from all sides. After 24 hours, the pressurization and fixation facilities can be unloaded.
⑤ Check the stickies and construction quality, and carry out surface anti-corrosion treatment and other finishing treatment.
consumption
Mix ratio: A: B=3:1.
Dosage: about 5-7kg per square meter.
Maintenance precautions editing
1. Whether the steel adhesive bonding surface is treated as required, whether the adhesive ratio is accurate, whether the mixing is uniform, and whether the adhesive layer is uniform and dense determine the effect of steel adhesive bonding.
2. The structural measures of sticking steel shall meet the relevant provisions of Code for Design of Concrete Structure Reinforcement GB50367-2006.
3. Nano anti sediment material is added to the steel glue, but it is a good habit to check whether there is any sediment in the glue in the packaging barrel before each use. If there is any sediment, it can be stirred evenly again with a thin stick.
4. The recommended mixing time should be guaranteed, and the winter construction should be extended for another 3 minutes. A. B. Glue dispensing tools shall not be mixed. The glue that cannot be used up at one time in the packaging barrel shall be tightly covered and sealed for storage.
5. If the average temperature of the construction site for sticking steel glue is lower than 0 ℃, iodine tungsten lamp, electric furnace or water bath can be used to preheat the glue to about 30~50 ℃ before use, and attention should be paid not to let water mix into the barrel. The average temperature of the construction site is lower than - 5 ℃, and it is recommended to heat the steel adhesive bonding part more than 0 ℃ for more than 24 hours.
6. The steel glue glue is completely cured into * * * grade material, but some components of the steel glue glue before curing are * * * * * for * * * and eyes, and it is not easy to remove the steel glue glue after curing, so the construction personnel should pay attention to appropriate labor protection, such as providing necessary safety helmets, work clothes, hand covers, etc. Direct contact of human body with steel glue shall be washed with clean water.
7. The higher the ambient temperature, the shorter the operating time. Estimate the amount of steel glue each time within the applicable period to avoid unnecessary waste.