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Concrete Admixtures

Concrete Strength Soil Stabilizer Concrete Hardener Concrete Reinforcement

Concrete Hardener main function is to accelerate the speed of cement hydration and promote the development of concrete strength. Concrete Hardener can be widely used in cast-in-place concrete projects, prefabricated components, concrete projects such as r
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Description

1. Product introduction of Concrete Hardener

Concrete Hardener, concrete strength, and concrete reinforcement refer to admixtures that can improve the early strength of concrete.

Concrete Hardener's main function is to accelerate the speed of cement hydration and promote concrete strength development. Concrete Hardeners can be widely used in cast-in-place concrete projects, prefabricated components, and concrete projects such as roads, bridges, culverts, and industrial and civil buildings, especially for concrete projects with early strength requirements in winter.

At the same time, the performance of concrete hardener and its normative use is also directly related to the safety and life of the entire project.
 


Concrete Strength Soil Stabilizer Concrete Hardener Concrete Reinforcement

 

2. Advantages and characteristics of Concrete Hardener

The early strength effect is remarkable.

Under the same conditions, the compressive strength of concrete 1d≥125~140%, 3d≥120~130%, compressive concrete strength after seven days≥110%, and the later strength is also improved, and the 28d strength is significantly higher than the benchmark concrete.

Concrete Hardener can shorten the construction period and improve the formwork turnover rate by 30-50%.

Concrete Hardeners can improve the workability of concrete, impermeability, and frost resistance of concrete.

Concrete Hardener is non-toxic, non-flammable, non-corrosive, contains no chlorine salt, and has no rusting effect on steel bars.

 

3. Application areas of concrete reinforcement

Concrete reinforcement can be widely used in cast-in-place concrete projects, prefabricated components, concrete projects such as roads, bridges, culverts, and industrial and civil buildings, especially in winter or emergency repair concrete projects.

 

4. How to use concrete reinforcement and matters needing attention

The dosage of concrete reinforcement is 2 to 3% of the cement dosage, and the usual dosage is 2.5%.

The mixing method can be used with the mixing, post-mixing, and multiple addition methods. A commonly used mixing method is mixing the product with cement and then mixing it with aggregate evenly.

Add water and mix; the mixing time is extended to 30-60.

To ensure the quality of the project, it is suggested that the user should refer to the instruction manual for the necessary concrete trial mix when using this product for the first time or changing the cement type.

Please control the concrete's aggregates, water consumption, and admixture amounts to ensure accurate measurement.

If porous aggregate is used in the concrete mixture, it is advisable to add water and stir first and then add the early strength agent.

Concrete reinforcement is best to use mechanical stirring. If manual stirring is used, the mixing time should be appropriately extended to ensure uniform mixing.

This product's vibrating method, transportation, and pouring are identical to ordinary concrete.

Please strengthen maintenance according to relevant standards.

 

5. Packaging and storage of concrete reinforcement

The packaging specification of concrete reinforcement is 25kg/bag.

Store in a dry and ventilated place.

Pay attention to moisture. The shelf life of this product is one year, and it can only be used after the expiry of the time limit.

This product is valid for 12 months and can continue to be used after passing the concrete test.

 

6. Product safety instructions for concrete reinforcement

Concrete reinforcement is non-toxic, non-irritating, non-radioactive, non-flammable, and explosive dangerous goods and will not cause corrosion of steel bars.

FAQs concrete reinforcement
Q: What is the role of soil stabilizers in road construction?
A: In road construction, soil stabilizer is mainly used to improve the foundation soil quality and make it more suitable as a bearing layer. Specifically, it has the following important roles: Enhancement of bearing capacity: by reacting physico-chemically with soil particles, soil stabilizers can make the soil stronger and reduce the risk of settlement. Improve stability: it can change the engineering properties of the soil, such as reducing the plasticity index and increasing the angle of internal friction, which makes the soil less susceptible to moisture changes and improves overall stability. Reduced maintenance costs: The treated soil is less prone to cracking or deformation, extending the service life of the pavement and reducing the frequency of later maintenance.
Environmental benefits: Compared with the traditional replacement method, the use of soil stabilizers reduces the demand for natural resources and at the same time reduces the generation of waste, which is in line with the concept of sustainable development. Common soil stabilizers include lime, cement, and various organic and inorganic compounds.
 
Q: How do concrete hardeners work? What types are there?
A: Concrete hardeners are products that are applied to the surface of concrete to increase abrasion resistance and hardness. They work by penetrating the surface of the concrete and reacting with the free lime and other ingredients in it to form a hard protective film. This not only enhances the durability of the surface but also improves the quality of appearance. The main types include: Lithium-based silicate hardeners: these hardeners form a very dense crystal structure that effectively seals concrete pores and improves impermeability. Sodium/potassium based silicate hardeners: These products also generate silica gels, but lithium based products are relatively more effective and do not cause alkali aggregate reactions. Fluorocarbon resin hardeners: In addition to providing excellent abrasion resistance, these hardeners give concrete excellent water and stain resistance. Epoxy resin coating: Although not strictly a hardener, epoxy resin coatings provide excellent protection for concrete and are suitable for demanding industrial floors.
 
Q: What are the methods of concrete reinforcement?
A: When an existing concrete structure needs to be strengthened, a variety of reinforcement techniques can be used to meet different needs: Adhesive Steel Plate Reinforcement Method: The steel plate is directly pasted onto the concrete member and fixed by a special adhesive to increase the section stiffness and bearing capacity. Pre-stressed carbon fiber plate reinforcement method: the use of carbon fiber plates instead of traditional steel for reinforcement, light weight and corrosion resistance, especially suitable for the repair of bridges and buildings. Encapsulated steel reinforcement method: wrapping angles or channels around the exterior of concrete columns or beams, and connecting them by welding or bolting to improve their shear resistance and seismic performance. Increased Cross Section Reinforcement Method: By pouring a new concrete layer and configuring reinforcing steel mesh, the size of the original member is enlarged so as to increase the load bearing capacity. Reinforcing bar implantation method: Applicable to newly opened holes or other newly added connection parts, drilling and implanting reinforcing bars in the existing concrete, and then filling structural adhesive, so as to make the old and new parts close together.
 
Q: What is the environmental impact of using soil stabilizers?
A: The environmental impact of using soil stabilizers depends on the type of product selected and how it is applied. Overall, sensible use can lead to positive results, but there are some potential problems to be aware of: Resource conservation: By amending the soil on site, the extraction of natural materials is reduced, which helps to protect the ecosystem. Pollution reduction: Good quality soil stabilizers can help to reduce dust flying and air pollution; in addition, they can prevent soil erosion caused by rainfall and protect water bodies from sediment pollution. Long-term effects: Some stabilizers may gradually fail over time, so their long-term stability needs to be assessed to avoid possible future problems. Biosafety: It is important to select stabilizers that are non-toxic and have low volatility to ensure that they do not pose a risk to human health and the surrounding ecosystem. Regulatory compliance: Ensure that the soil stabilizers used comply with local environmental standards, especially when it comes to drinking water source protection zones or other sensitive areas.

 

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