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Rm. 2-2-402, Huixiangyuan Plot, Jiangshuiquan Road, Lixia Dist., Jinan, Shandong, China (Mainland)
BY-40 High strength grouting material for subway
Introduction:
High-strength non-shrink grout is special cement as cementing material, with a variety of additives and selected aggregates complex, combined with high flow, micro-expansion, anti-segregation and other substances from the preparation, the product has early strength, high strength , no shrinkage, micro-expansion, high fluidity gravity without vibration, non-toxic, harmless, non-aging, water quality and the surrounding environment pollution, since tightness is good, rust and other features.
Fundamentally change the base of the equipment the forces, so that uniform to bear the entire load of equipment to meet the installation requirements of various machinery, heavy equipment, high-precision grinding machine, it is no ideal filling material plate mounting era.
Application:
Anchor bolts, steel reinforcement and foundation interfaces, machine base reinforcement, based on secondary grouting equipment, electrical and mechanical equipment installation, static piling engineering seal piles, reinforced concrete structure and transformation of the old concrete structure of governance cracks, wall thickening and leakage of water repair construction, road and bridge engineering reinforcement, grouting collapse of various infrastructure projects and a variety of repair projects.
Foundation Treatment:
Clean base surface, may not have gravel, laitance, dust, grease and mold release agents and other debris. 24h before grouting the foundation surface should be fully moistened. 1h should be dry before filling water.
Grout mixing:
Add water according to the standard consistency of 13% -15%, stirring water should be tap water, the water temperature to 5-40 appropriate, can be mechanical or manual mixing. When using mechanical stirring, stirring time is generally 1-2 minutes. Artificial agitation, advised of water was added and stirred for 2 2/3 minutes, after adding the remaining water and continue stirring until homogeneous. When a large amount of equipment foundation grouting, should the use of mechanical mixing method, in order to ensure grouting construction.
Technical Date:
Item | Technical date | ||||||
Category | CGM-BY45 | CGM-BY50 | CGM-BY60 | CGM-BY70 | CGM-BY90 | CGM-340 | |
/ | Standard type | High strength | Early strength type | Ultra early strong | Ultra-flow | ||
Compressive strength | 1d | ≥20 | ≥22 | ≥25 | ≥30 | ≥40 | ≥25 |
3d | ≥40 | ≥40 | ≥45 | ≥50 | ≥55 | ≥45 | |
28d | ≥60 | ≥70 | ≥80 | ≥75 | ≥70 | ≥80 | |
Fluidity(min) | Initial Value | ≥280 | ≥290 | ≥340 | |||
30Min retention value | ≥260 | ≥310 | |||||
Vertical expansion rate% | 3h | 0.1-3.5 | |||||
| Difference between 3h and 24H expansion | 0.02-0.5 | |||||
No corrosive effect on reinforcement | No | ||||||
Bleeding rate% | 0 | ||||||
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