Year1
- 包装：
- 牛皮纸袋包装
- 用量：
- 2.1-2.2吨/立方米
- 规格：
- 50kg/袋
This product is a high-density special mortar, the performance indicators comply with the national standards of "Cement-based Grouting Material" and "Beijing-Shanghai" "Details for the Implementation of High-Performance Concrete for High-Speed Railways" and "Interim Technical Conditions for Pot-type Rubber Bearings for Passenger Dedicated Line Bridges" railway industry standard technical requirements.
Product Features
, high strength, early strength: 1 day compressive strength, 3 days compressive strength 3.
. Superfluid state: initial fluidity, which can fill all the gaps and meet the requirements of secondary grouting of the equipment.
No shrinkage: It has a micro-expansion compensation function to eliminate the phenomenon of cement hardening and shrinkage. After grouting, it ensures close contact between the equipment and the foundation to ensure high-precision installation requirements.
This product is allowed to be constructed at temperatures above -°C and has achieved good results after tens of thousands of fatigue tests.
Construction technology
1. Material preparation:
It is recommended to use mechanical mixing method. The mixing time is generally ~ minutes. It is strictly forbidden to use a hand drill-type mixer. If manual mixing is used, first add /3 of the water and stir for ~3 minutes, then add the remaining water and stir until uniform.
The amount of stirring each time should be determined according to the amount of use, so as to ensure that the material is used up within minutes.
When used on site, it is strictly prohibited to mix any additives or external additives into the grouting material.
, Recommended water consumption: ~.
, reference dosage calculation: ~/3.
2. Instructions for secondary grouting construction of equipment foundation:
1. Base layer treatment: Clean the surface of the equipment foundation. There should be no gravel, floating slurry, floating ash, oil stains, release agents and other debris. Hours before grouting, the surface of the equipment foundation should be fully moistened and any accumulated water should be removed.
, supporting formwork:
Seal the joints between formwork and foundation, formwork and formwork with cement slurry (it is recommended to use block quick sealing agent or seam sealant), tape, etc. to achieve the overall formwork. The degree of water tightness.
The horizontal distance between the formwork and the equipment base should be controlled to the left and right to facilitate grouting construction. The top elevation of the formwork should be higher than the upper surface of the equipment base.
Grouting construction:
The secondary grouting process should comply with the requirements of the "Secondary Grouting Construction Process for Equipment Foundation".
The grouting of long equipment or track foundations should be constructed in sections using the jumping method, and the length of each section should not exceed.
When using the high funnel method for grouting, grouting should start from the center or one side of the equipment base.
Before the secondary grouting of the equipment foundation, the corresponding grouting method should be selected according to the actual situation.
Secondary grouting should meet the following requirements:
Secondary grouting should be carried out from multiple points on one side or adjacent two sides until it overflows from the other side to facilitate exhaust during the grouting process. , grouting shall not be carried out from all four sides at the same time.
After the grouting starts, it must be carried out continuously without interruption, and the grouting time should be shortened as much as possible.
Vibration is strictly prohibited during the grouting process. If necessary, a grouting booster can be used to push the grouting material along the bottom of the grouting layer. It is strictly prohibited to push from the middle and upper parts of the grouting layer to ensure the homogeneity of the grouting layer.
3 to 4 hours after the equipment foundation grouting is completed, cut a ℃ bevel outward along the edge of the equipment to prevent cracks at the free end. If trimming is not possible, the surface of the grouting layer should be calendered with a spatula 3 to 4 hours after grouting.
Maintenance and film removal
1. Cover with wet straw curtains or rock wool quilts immediately within 3 minutes after grouting is completed, and keep them moist.
2. After the foundation grouting of the equipment is completed, if there is any part that needs to be removed, it can be gently removed with a spatula or shovel tool 3 hours after the grouting is completed, that is, before the grouting layer hardens.
3. The vibration of the running machine must not be transmitted to the equipment foundation. The machine should be shut down for an hour after the second grouting to avoid damaging the unhardened grouting layer.
4. During winter construction, maintenance measures should also comply with the relevant provisions of the current "Code for Construction and Acceptance of Reinforced Concrete Projects" (B). The temperature, maintenance and film removal schedule is as follows
Packaging and storage
1. / bag, packaging specifications can be customized according to customer requirements.
2. It should be stored in a cool, dry and ventilated place indoors.
The company's main products are divided into
1. Building grouting reinforcement series: high-strength non-shrinkage grouting material, epoxy resin grouting material, tunnel pressure grouting material (agent), bearing mortar, road stud anchoring agent , track cement, high-strength wear-resistant material, wear-resistant floor hardener.
2. Repair mortar series: epoxy repair mortar, epoxy resin cement, epoxy resin mortar, polymer repair mortar, polymer repair and reinforcement mortar.
3. Epoxy structural adhesive series: modified epoxy reinforcement adhesive, modified epoxy steel adhesive, modified epoxy carbon fiber cloth adhesive, modified epoxy grouting adhesive, micro crack sealing paste, sealant Seam glue, stone dry hanging glue.
4. Ceramic tile pasting and interface treatment series: ceramic tile adhesive, vitrified tile adhesive, marble adhesive, mosaic adhesive, color anti-mildew caulking agent, 3 concrete re-pouring agent, dry powder Interface agent, steel anchoring agent, construction rubber powder.
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