Product Details
High-strength non-shrinkage grouting material
>High-strength non-shrinkage grouting material is a cement-based self-flowing micro-expansion dry mortar. It has the characteristics of early-strength, high-strength self-flow and micro-expansion, and is suitable for secondary installation of equipment foundations. Reinforcement and reconstruction of grouted concrete structures and anchoring of anchor bolts and other projects.
Product Features
The compressive strength can reach above 100% in early and high-strength days. The bolts can be tightened and tested within hours after grouting. The highest day intensity can reach above.
It has high self-flowing properties and can be used by adding water and stirring on site. It can fill all gaps without vibrating.
There is no shrinkage after micro-expansive grouting, ensuring close contact between equipment bolts and the foundation.
In winter, outdoor construction is allowed to be carried out at a minimum temperature of ℃.
Durability: This product is an inorganic cementing material, and its service life is longer than the service life of the base concrete. After tens of thousands of fatigue tests and freeze-thaw cycles, there is no obvious change in strength.
Resistant to oil penetration and high temperature impact, the strength after being immersed in engine oil is higher than before being immersed in oil. Flame cutting and welding operations of the steel bars are allowed after planting.
Scope of application
Universal reinforcement type
Grouting thickness << secondary grouting of equipment foundation, anchor bolt anchoring, buried steel bars, reinforcement of building beams, slabs, column foundations and floors Reinforcement.
Pisolite reinforced type
Contains large aggregate, suitable for grouting layer thickness, and grouting length < secondary grouting of equipment foundation. Reinforcement and reinforcement (repair thickness) of the building's beam-slab-column foundation and floor.
Ultra-fine reinforced type
Ultra-fine aggregate, suitable for secondary grouting of equipment foundations and steel structure column footings with grouting layer thickness <<. The gaps between the concrete beams and columns reinforced angle steel and the concrete are grouted.
Super early-strengthening type
The hourly strength is reached, and it is suitable for rapid repairs such as railway sleepers, rapid repairs of cement concrete pavements, airport runways, etc., and rapid repairs of water-stopping and leakage.
>Technical indicators
Comply with/standard indicators ℃ standard curing test block size
Project
Model
Vertical
Expansion rate
Compressive strength
Fluidity
Slump
Minimum construction temperature (℃)
Reference
Water consumption
Bulk weight
Days
Day
Day
Universal reinforced type
Pisolite reinforced type
Ultra-fine reinforced type
Project
Model
Vertical
Expansion rate
Compressive strength
Fluidity
Slump
Reference water consumption
Bulk weight
Hours
Days
Days
Super early strengthening type
>Strength conversion relationship between various trial mold sizes
Trial mold dimensions
Strength ratio
Age
Day
Day
Day
>Grouting construction instructions
>One foundation treatment
>Foundation surface It should be chiseled. Clean the surface of the foundation. There should be no gravel, floating ash, oil, dirt, release agent and other debris. The surface of the foundation should be fully moistened one hour before grouting, and any accumulated water should be removed one hour before grouting.
Two formwork
Set up the formwork according to the grouting construction drawing. The joints between the formwork and the basic formwork should be sealed with cement slurry tape to ensure that the entire formwork is watertight.
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.
If grout running occurs during grouting, it should be dealt with in time.
Three grouting material preparations
Generally, add water and mix according to the standard for general reinforced type, and add water and mix according to the standard for pisolite reinforced type.
The mixing of high-strength non-shrinkage grouting materials can be done mechanically or manually. It is recommended to use a forced mixer for mechanical mixing, which can ensure sufficient and even mixing and the mixing time is minutes. Manual mixing time is completed within minutes. The fluidity of the mixed grouting material will decrease as the parking time increases, and it should be used up within minutes. It is strictly prohibited to mix any additives into high-strength non-shrinkage grouting materials.
Four grouting construction methods
For longer equipment or track foundations, segmented construction should be used.
After grouting begins, it must be carried out continuously without interruption, and the grouting time should be shortened as much as possible.
Five Maintenance
After grouting is completed, the grouting material should be covered with a straw bag or rock wool quilt immediately after the initial setting and kept moist.
During winter construction, the grouting material mixing water and maintenance measures should comply with the relevant provisions of the current "Construction Quality Acceptance Code for Concrete Structure Engineering".
Do not subject to vibration for hours after grouting to avoid damaging the unhardened grouting layer.
The relationship between mold removal, curing time and ambient temperature
Daily minimum temperature (℃)
Film removal time
Curing time
>Packaging, storage and transportation< br/>Packaging specifications/bag, stored in a ventilated and dry place and protected from direct sunlight.
The shelf life is one month. If it exceeds the shelf life, it should be re-inspected before it can be used.
>The product packaging is subject to actual delivery. This picture is for reference only.
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