Column Grouting Material Manufacturer, Building Reinforcement Grouting Material, No-Shrink Grouting Material, Cementitious Grouting Material, Micro-Expansive Grouting Material, CGMHigh-strength shrinkage-free grout
Product Features:1Early strength, high strength1Compressive strength ≥27Ｍpa；3Compressive strength ≥40Ｍpa；28Compressive strength ≥60Ｍpa。
2Minimal expansion
Ensure tight contact between the equipment and foundation, with no shrinkage after secondary grouting.
3High self-leveling property
Completely fills all gaps, meeting the requirements for secondary grouting of equipment.
4Anti-segregation
Overcame the segregation issue caused by excessive water addition during on-site use.
5Crack-resistant
Cracking phenomena during on-site use due to uncertain water content, unpredictable environmental temperatures, and limited maintenance conditions.
6High durability
After millions of fatigue tests50The intensity of the freeze-thaw cycle test showed no significant change. Immersed in engine oil.30The天后 strength has notably increased.
7Winter construction is possible.
Permitted to-10Outdoor construction under temperatures of ℃.
Product Application:
1For secondary grouting of equipment foundations.
2Used for anchor bolt anchoring and steel bar embedding.
3Used for reinforcing and repairing concrete structures.
Technical Specifications:
Pre-construction preparations
1Machine Stirring:Concrete mixer or mortar mixer;
2Manual Stirring:Agitator tanks and several shovels;
3Several buckets;
4Several scales;
5Trough;
6High-position funnel, grouting pipe, and pipe connectors;
7Grouting Booster;
8Template(Steel molds, wooden molds);
9Burlap bags, rock wool blankets, etc.;
10Cotton yarn, tape;
Grouting construction
Step 1: Basic Processing
The base surface should be roughened. Clean the base surface, ensuring there are no debris, slurry, loose dust, oil stains, or release agents, etc. Prior to grouting.24Hours, the base surface should be sufficiently moistened prior to grouting.1Hourly, drain standing water.
Step 2: Feel and Touch
1Set up molds according to the grouting construction drawing. Seal the joints between the molds and the foundation, as well as between the molds themselves, with cement slurry and tape to ensure the entire mold is waterproof.
2The horizontal distance from the template to the base of the equipment should be controlled.100mmOn both sides, for ease of grouting construction.
3The template's top elevation should be higher than the surface of the equipment base.50mm。
4If the phenomenon of slurry leakage occurs during grouting, it should be handled promptly.
Step 3: Grout Material Preparation
1Generally, by general reinforced type13-14%Standard mixing with water,Bean stone reinforced type9-10%Standard mixing with water.
2Recommend using mechanical stirring method; the stirring time is generally1-2Minutes (Do not use electric drill mixers). When mixing manually, add first2/3Water usage for mixing2Pour the remaining water and stir until uniform.
3The volume of stirring should be adjusted according to the amount used to ensure40Material will be used up within a few minutes.
4During on-site use, it is strictly prohibited toCGMMixed with any admixtures or external additives in the grouting material.
Step 4: Grouting Construction Method
1Longer equipment or track foundations should be constructed in sections.
2Illustrations of several common grouting methods
3During the secondary grouting, the following requirements should be met.
① During secondary grouting, the grouting should be carried out from multiple points on one side or adjacent sides until it overflows from the opposite side, to facilitate air release during the grouting process. Grouting from all four sides simultaneously is not allowed.
② After grouting begins, it must be carried out continuously without interruption, and the grouting time should be minimized as much as possible.
③ Absolutely no vibration is allowed during grouting. A grouting booster may be used to push along the bottom of the grouting layer if necessary.CGMGrouting material shall not be pushed from the grouting layer or above to ensure the homogeneity of the grouting layer.
④ After the equipment foundation grouting is completed, it should be...3-6Hourly cutting along the equipment edge outward45Degree of slope (see illustration) to prevent cracks from forming at the free end; if edge trimming is not possible, it should be done after grouting.3-6After an hour, use a spatula to smooth the surface of the grout layer.
⑤ When the thickness of the grouting layer exceeds150mmAt this time, use reinforced with pea stone high-strength shrinkage-free grout.
⑥ When the amount of grout for equipment foundation is large, mechanical mixing should be used for the aggregate-reinforced grout to ensure proper grouting construction.
Step 5: Maintenance
1After grouting is completed30Apply wet straw cover or rock wool blanket within minutes.,Keep moist.
2Winter construction,Cultivation measures should also comply with the current<<specifications for construction and acceptance of reinforced concrete projects>>(GB50204)Regulations stipulated.
3After the gel material reaches the demolding time, equipment installation can be carried out.,Please refer to the "Table of Peel-off and Maintenance Time vs. Environmental Temperature."
4After the foundation grouting of the equipment is completed, if there is a need to remove any part,After grouting is completed3-6After hours,Before the grouting layer hardens, gently scrape it off using a trowel or shovel tool.
5Do not transmit the vibration of operating machinery to the equipment foundation, and the machine should be turned off after secondary grouting.24-36Hour,To prevent damage to the unhardened grouting layer.
Packaging and Storage
1Packaging Specifications:50kg/Bags, store in a well-ventilated and dry place, and protect from direct sunlight.
2Shelf life of3Months, re-inspection and qualification are required before use if past the expiration date.
