Jinan Caitong Building Materials Co

Qiandun high-strength non-shrinkage grouting material is a cement-based self-flowing micro-expanding dry mortar with early strength, high strength, self-flowing and micro-expansion properties. It is suitable for secondary grouting of equipment foundations, reinforcement and transformation of concrete structures, steel bars and footings. Bolt anchoring and other projects. Product Features
.Early strength and high strength: -The compressive strength can reach -10 hours after grouting, the bolts can be tightened and the machine can be started for testing. The highest day intensity can reach above.
.Has high self-flowing properties: it can be used by adding water and stirring on site, and can fill all gaps without vibrating.
.Micro expansion: no shrinkage after grouting to ensure close contact between equipment, bolts and foundation.
.Winter construction: Outdoor construction is allowed at a minimum temperature of -℃.
.Durability: This product is an inorganic cementing material with a service life greater than that of the base concrete. It has undergone tens of thousands of fatigue tests
and has no significant change in strength after freeze-thaw cycles.
Resistant to oil penetration and high temperature impact: after being immersed in engine oil, the strength is increased by more than % than before being immersed in oil. Flame cutting and welding of the steel bars are allowed after planting.
Scope of application
<= dd
Universal reinforcement type
Grouting thickness << equipment foundation secondary grouting, anchor bolts, embedded steel bars, building beams, plates, columns, foundations and Reinforcement of floors.

Pisolite reinforced type
Contains ~ large aggregate, suitable for secondary grouting of grouting layer thickness and grouting length < equipment foundation. Reinforcement (repair thickness) of beams, slabs, columns, foundations and floors of buildings.

Ultra-fine reinforced type
Ultra-fine aggregate is 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.

Strength and early strength type
The hourly strength reaches 100%, which is suitable for rapid repair of cement concrete pavements such as railway sleepers and rapid repair of water sealing and leakage of airport runways.
Technical indicators
Comply with - standard indicators
°C standard maintenance, test block size:
<= dd => Project
Model
=> d vertical
Expansion rate (%)
Compressive strength
=> Fluidity
=> Slump
=> Minimum construction temperature (℃)
= > Reference
Water consumption
=> Bulk weight
(/)
Day
Day
Day
-General purpose reinforced type
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~%

-Pisolite reinforced type







~%

-Ultra-fine reinforced type







~%

=> Item
Model
=> dvertical
Expansion rate (%)
Compressive strength
=> Fluidity
=> Slump
=> Reference water consumption
=> Bulk density
(/)
Hours
Days
Days
- Strong work and early strength type




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~%


Strength conversion relationship between various trial mold sizes
<= dd Trial mold size
Strength ratio
(%)
=>
=> ． ．
=>
=>
Age (d)
Days




Days




Every day




Grouting construction instructions
<= Foundation treatment< br/> The foundation surface should be chiseled. There should be no gravel, floating slurry, floating ash, oil stains, release agents and other debris on the clean foundation surface. The foundation surface should be fully moistened 1 hour before grouting and any accumulated water should be removed 1 hour before grouting.
2. Formwork support
Set up the formwork according to the grouting construction drawing. The joints between the formwork and the foundation, and between the formwork and the formwork are sealed with cement slurry, tape, etc. to ensure that the entire formwork does not leak.
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 grouting occurs during grouting, it should be dealt with in time.
3. Preparation of grouting material
Generally, add water and stir according to the standard of -% for the general reinforced type. Add water and stir according to the standard of -% for the pisolite reinforced type. Add water and stir according to the standard of -% for the ultra-fine type.
Mechanical or manual mixing can be used to mix high-strength non-shrinkage grouting materials. It is recommended to use a forced mixer for mechanical mixing to ensure sufficient and uniform mixing. The mixing time is - minutes. Manual mixing time is completed within minutes. The fluidity of the mixed grouting material decreases as the parking time increases and should be used up within minutes. It is strictly prohibited to mix any additives into high-strength non-shrinkage grouting materials.
4. Grouting construction method
Long equipment or track foundation should be constructed in sections.
After the grouting starts, it must be carried out continuously without interruption and the grouting time should be shortened as much as possible.
5. Maintenance
After grouting is completed, the grouting material should be immediately covered with a straw bag or rock wool quilt and kept moist after the initial setting.
During winter construction, grouting materials, mixing water and maintenance measures should comply with the relevant provisions of the current "Construction Quality Acceptance Code for Concrete Structure Engineering" ().
After grouting, it should not be subject to vibration for an hour to avoid damaging the unhardened grouting layer.
The relationship between mold removal, curing time and ambient temperature
<= dd daily minimum temperature (℃)
Membrane removal time
Curing time
-~


~


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Packaging, storage and transportation
. Packaging specifications:/bags are stored in a ventilated and dry place and protected from direct sunlight.
.The shelf life is one month. If the product exceeds the shelf life, it must be re-inspected before it can be used.