Chockfast Red

       Chockfast grouting material consists of three components: A (resin), B (hardener), and C (aggregate). This product uses resin and refined aggregates, with 100% solid content and no volatile harmful substances to the human body such as solvents. It can be used after fully mixing the three components in each group at room temperature. This grouting material is a guarantee for the precise system and permanent balance of equipment, and can greatly extend the operation cycle and service life of rotating equipment.

Uses

1. Industries that use Chockfast grouting material:

Petrochemical, oil refining, oil (gas) pipelines, pipeline pumping stations and natural gas terminals, offshore platforms, oil (gas) storage equipment, pulp, water treatment, power, metal processing and mining, shipbuilding.

2. Names of some equipment that use Chockfast grouting material:

The CHOCKFAST product series has been adopted or recommended by the following companies (partially listed)

Product Features

1. High compressive strength —— It can provide mechanical properties such as compressive strength and bonding strength that are much better than cement-based materials, and higher early strength.

2. Low exothermic peak —— It can provide an operation time of up to 180 minutes (at 25°C), especially suitable for large-area grouting.

3. Extremely low shrinkage rate —— It can ensure that the grouting layer is in full contact with the bearing surface after final molding, ensuring the high accuracy of equipment installation.

4. Ultra-low thermal conductivity —— It can minimize heat accumulation and effectively eliminate the original positioning imbalance problem of long-term rotating equipment.

5. Good vibration damping ability —— It can resolve any dynamic load transmitted by rotating equipment that may cause the cement-based grouting layer to burst.

6. Good corrosion resistance —— At the same time, it can also withstand long-term contact corrosion by chemicals such as acids, alkalis, salts, and oils.

7. Extremely strong adhesion —— The adhesion strength to steel is more than 10 times that of cement.

Physical Properties Table

Grouting Construction Method

I. Material storage

1. The materials should be stored in a dry and ventilated environment.

2. Before use, the resin, hardener, and aggregate in the grouting material should be placed in an environment of 21 - 27°C for 24 hours to ensure that the materials have the best operational performance when used.

II. Preparation before grouting

1. The concrete surface must be dry, clean, free of oil stains, and intact without cracks. Remove dirt and other contaminants from the foundation surface. It is best to chisel off the surface laitance to expose the solid base layer, ensuring the bonding strength of the grouting material to the base surface.

2. Steel components such as the equipment foundation bottom plate should have their sharp corners ground off, and the surface must be derusted and degreased.

3. The wooden mold should be sturdy. The inner side of the mold needs to be treated for demolding [such as applying plastic tape, spreading floor wax (paste form), etc.]. At the grouting level on the inner side, make a chamfer with a triangular wooden strip so that the grouting material has no sharp edges after molding. Seal the gaps at the edges of the mold with cement or silicone to ensure there is no possibility of leakage. The distance between the mold and the equipment base should be no less than 200 mm.

4. Usually, when the area exceeds 2150 mm × 2150 mm, an expansion joint with a thickness of approximately 25 mm needs to be provided. You can choose wooden strips or elastic foam strips, and pre-glue and fix them on the base surface and the inner side of the mold with silicone. After the grouting is formed, remove the exposed part, and then use (epoxy or polyurethane sealant) to seal the surface of the expansion joint.

5. When the ambient temperature is lower than 16 °C, a warming shed needs to be set up on-site to assist with heating. The temperature of the concrete foundation surface inside the warming shed should be at least higher than 13 °C before grouting, and the space temperature should be higher than 25 °C. Maintain this temperature for 24 hours after grouting.

III. Mixing and grouting

1. You can choose between mechanical mixing and manual mixing according to the workload.

2. When mixing, first pour the hardener into the resin tank. Use a hand-held stirrer to stir for about 3 - 4 minutes at a speed of 200 - 250 rpm to ensure effective mixing. The mixed substance must be mixed with the aggregate within 20 minutes. Add the aggregate to the mixed resin one bag at a time and stir thoroughly (you can work inside the bucket or tank as needed) to ensure that the stirred substance is evenly and completely wetted. Manual mixing takes about 15 minutes per group. If using machinery (you can use a vertical mortar mixer at about 20 revolutions per minute), mechanical mixing takes about 5 minutes per group.

3. When grouting, select the grouting port and the bleeding port in advance. In principle, grouting should be carried out from one side to the other. During the grouting process, you can increase the height of the grouting port or use the extrusion method to accelerate the grouting, but avoid vibration to prevent air bubbles.

4. When the ambient temperature is low and the grouting distance is long, you can reduce the amount of aggregate (up to 1/2 bag) to improve the fluidity of the material.

5. After the materials are mixed, grouting should be carried out as soon as possible. The grouting construction of the equipment foundation should not be interrupted and needs to be completed in one go.

IV. Protection measures

1. All tools can be cleaned with water within 2 - 3 hours.

2. After the grouting is completed, waterproof, dustproof and other shielding protection must be provided (for the grouted parts), and avoid direct sunlight.

3. The operation of this product will not cause harm to the respiratory system. If it comes into contact with the skin, it can be washed clean within 2 - 3 hours, but avoid splashing into the eyes.

4. After the materials are used up, the packaging barrels and bags should be recycled and properly disposed of by the construction party.

V. Demolding time

Demolding can be carried out after the product is formed. The forming time is related to humidity, as follows:

Forming time at 16 °C is 54 hours                    Forming time at 27 °C is 24 hours

Forming time at 21 °C is 36 hours                    Forming time at 32 °C is 18 hours