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Main Products: CGM High-Strength Non-Shrink Grouting Series, CGM-340, CGM-380, Epoxy Grouting, Epoxy Repair Mortar, CGM-320 Support Grouting.
CGM High-Strength Repair Material; High-Strength Polymer Mortar, High-Performance Self-Leveling Mortar (Colorful), High-Strength Abrasion-Resistant Material, Steel Adhesive, Reinforcement Adhesive, Steel Encapsulation Grout.
Sealant, adhesive carbon, dry-hanging glue; surface treatment agents, prestressed pipe grouting agents, wear-resistant flooring hardeners, etc., as well as product masterbatch…
Professional grouting material manufacturer (mainly used in road and bridge repairs, high-speed rail, expressways, water conservancy and hydropower projects, power plants, old building reinforcement, large machinery bases, industrial flooring, and wear-resistant series, etc.) Strictly adheres to the new national standards, samples for testing available!
High-Strength Non-Shrink Grouting Material Product Features
1. Flowability exceeds or equals 300mm, allowing for uniform dispersion and free flow after casting.
2. Self-compacting with good fluidity, it does not leak water, does not segregate, and does not require vibration. It can fill the grouting area by its own weight.
3. Early high strength with high early strength, 1d strength ≥ 30MPa, 3d strength ≥ 50MPa, 28d strength ≥ 60MPa.
4. Micro-expansion grouting material uses composite expansion technology, featuring expansion before and after hardening, preventing sinking and shrinkage due to grouting material settling and water loss, and preventing cracking and hollowing after casting, as well as reducing the effective load-bearing surface.
5. Durable as an inorganic mixture, resistant to corrosion and aging. Domestic research shows: after 2 million fatigue tests and 50 freeze-thaw cycle tests, there is no significant change in strength. The strength increases significantly after soaking in engine oil for 30 days.
6. Eco-friendly, non-toxic, non-harmful, non-corrosive to steel reinforcement, and non-polluting to water quality and the surrounding environment.
7. Winter construction is allowed, enabling outdoor work at temperatures as low as -10°C.
Grouting material
High-strength shrinkage-free grout product application
(1) One-time and second-time grouting for equipment foundations requiring high-precision installation. (2) Reinforcement embedding and anchor bolt anchoring in construction and geotechnical engineering. (3) Construction reinforcement and renovation projects, including beam-column joints, expansion joints, and construction joints. (4) Emergency repair construction for roads, bridges, tunnels, airports, etc. (5) Anchor construction for railway sleepers. (6) Column wet steel jacket reinforcement for filling angle steel and column gap joints.
High-strength shrinkage-free grouting material recommended dosage
Based on the reference dosage calculation of 2.2 to 2.4 t/m³, calculate the actual usage. It is precisely because the grouting material has high strength, far exceeding the strength achievable with cement, and alters the shrinkage characteristics of cement during curing that it is called high-strength, non-shrink grouting material. Grouting materials come in different models, such as CGM, HGM, etc., which are determined according to the standards of different architectural research institutes and do not represent the quality of the product. Specific usage requires testing.
High-Strength Non-Shrink Grouting Material Application Steps
1. Prepare mixers, grouting equipment, molds, and maintenance materials. Clean the grouting space and pre-wet the concrete surface.
2. Set up the molds and seal the connections with cement (sand) mortar and plastic tape to ensure no leakage or grout seepage.
3. Add water to the grouting material at 12-15% of its weight and mix (mechanical mixing for 2-3 minutes, manual mixing for over 5 minutes).
4. Pour the well-mixed grouting material into the grouting area from one direction. Use bamboo sticks or steel rods for guidance if necessary, and gently tap the mold for compaction.
5. After construction, immediately cover with plastic film and add straw mats or cotton blankets for damp curing for 3-7 days.
6. Use within a temperature range of -10℃ to 40℃. Strictly prohibited to add any admixtures or external materials to the grouting material.
Unit Consumption: Approximately 2200 kg/m3. Note: The national standard specification for grouting materials, "GB50448-2008 Application Technology Specification for Cement-based Grouting Materials," specifies compressive strength according to "GB177-85 Test Method for Compressive Strength of Cement Mortar Sand," and expansion rate according to "GB119-88 Application Specification for Concrete Admixtures."
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