PRODUCTS
PRODUCTS
PRODUCTS
CGM-85 Sleeve Grouting Material
Main business：Building, infrastructure, industrial, mining, marine engineering, military engineering, expressway, tunnel, bridge, concrete repair, installation of large-scale mechanical equipment, wind power equipment, foundation bolt fixing, etc. High-performance, early-strength, micro-expansion, self-compacting, large-flow leveling, rapid repair cement grouting material
- Commodity name： CGM-85 Sleeve Grouting Material
- Description
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Specifications 25kg/bag Model CGM-85 Packaging Material Three paper and one film Shipping Method Jumbo bags Shipping Time Consult the freight forwarder Shelf Life Six months FOB Price $550/ton MSDS Yes Payment Method Telegraphic Transfer Storage Keep away from rain or moisture Application Scenarios Features: 1. Prefabricated steel bar connection 1. High fluidity 2. Shear wall structural node reinforcement 2. Early strength and high strength 3. Waterproof connection for underground nuclear engineering 3. Micro-expansion 4. Grouting of tunnel segment and gallery sleeves in subway 4. Freeze-thaw resistance and durability 5. Node renovation of old buildings 5. Convenient construction Performance Parameters
Category Class I Class II Class III Class IV Maximum aggregate size (mm) <4.75 <4.75 and ≤25 Truncated cone fluidity (mm) Initial value - ≥342 ≥355 ≥655 30min - ≥338 ≥350 ≥555 Flow cone fluidity (s) Initial value ≤35 - - - 30min ≤50 - - - Vertical expansion rate (%) 3h 0.1~3.5 0.16 0.14 0.1~3.5 Difference between 24h and 3h expansion values 0.03~0.06 0.03 0.06 0.03~0.06 Compressive strength (Mpa) 1d ≥15 ≥30 ≥30 ≥40 3d ≥30 ≥50 ≥60 ≥70 28d ≥50 ≥65 ≥80 ≥90 Chloride ion content (%) <0.1 Bleeding rate (%) 0 Application Scenarios
Prefabricated steel bar connection Shear wall structural node reinforcement Waterproof connection for underground nuclear engineering Grouting of tunnel segment and gallery sleeves in subway Node renovation of old buildings Usage
Preparation
Before grouting, the surface of the base material in contact with the grouting material should be cleaned and cleaned. 24 hours before grouting, the surface of the base concrete should be fully moistened. One hour before grouting, remove the accumulated water.
Grouting material preparation
1. When mixing cement-based grouting materials, add water according to the water consumption specified in the product qualification certificate. Weigh the water first, then pour the grouting material into the water and stir.
2. Before the grouting material construction, select (but not limited to) the following equipment and instruments according to the characteristics of on-site grouting construction: mechanical stirring; forced concrete mixer; manual stirring; hand-held drill stirrer. The mixing time is 3-5 minutes, and the mixing location should be close to the grouting material location. If there are a lot of bubbles on the surface, let it stand for 3 minutes before pouring, or you can tap the formwork appropriately.
3. Grouting should be continuous, and the mixed grouting material should be used up within 30 minutes.
4. Vibration is strictly prohibited during grouting. Appropriate insertion can be used, and the formwork can be tapped appropriately at the formwork.
Curing of grouting material
1. After grouting, the exposed parts should be sprayed with curing agent or covered with plastic film in time, and covered with wet straw bags to keep them moist.
2. When using plastic film covering, the exposed surface of the grouting material should be covered tightly to keep the condensation water inside the plastic film.
3. When the surface of the grouting material is inconvenient to water, a curing agent can be sprayed.
4. The watering curing time should be no less than 7d, and the number of watering times should keep the grouting material moist.
Precautions
1. According to the weather forecast. Avoid outdoor construction on rainy days. If the working surface is rained in the middle, a rain cloth should be set up in time. If rainwater is poured in, rework should be carried out in time.
2. The standard water consumption of this product is 0.12-0.14. The water-cement ratio is an important part of cement grouting material. Arbitrary addition of water will affect the product performance of cement grouting material.
3. Use special mechanical forced rapid stirring for 3-4min to prevent uneven stirring and mixing of raw materials, which will affect the later strength of cement grouting material. Do not use manual ground shovel mixing.
4. Pay attention to temperature changes before construction. Temperature affects the initial and final setting time and fluidity of the cement grout. The recommended construction temperature is 5-35℃. For low-temperature construction below zero, please inform our company in advance. We have corresponding high-early-strength and freeze-thaw resistant products.
5. Mechanical vibration is strictly prohibited during construction; however, channeling is allowed. Prevent stratification and bleeding of the cement grout.
6. The dry density of the cement grout is 2400KG/m³. Calculate the required amount based on the cubic meter of the project. Mix only the amount needed! Strictly prohibit mixing a large amount that will not be used to avoid waste. Leftover material is strictly prohibited from being remixed with the grout for reuse.
7. Strictly prohibit the arbitrary addition of any chemical substances on-site to alter the product performance of the cement grout.
8. This product must be protected from moisture or rain. It can only be reused after passing the quality inspection after the expiration date.
Factory Strength
Qualification
Message
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