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Concrete Additives

Concrete Additives

  • Polyvinyl Alcohol Fiber PVA Fiber for Concrete
    The main characteristics of PVA fiber are high strength, high modulus, low elongation, abrasion resistance, acid and alkali resistance, good weather resistance. It is good affinity and bonding with cement, gypsum and other substrates. It is non-toxic and pollution-free. It does not harm human skin and is harmless to human body. It is one of the new generation of high-tech green building materials.
  • HPMC Hydroxypropyl Methyl Cellulose
    HPMC is a white or almost white powder, odorless, tasteless and non-toxic.This product can be dissolved in cold water to form a transparent viscous solution.
  • Redispersible Polymer Powder RDP Powder
    Redispersible Polymer Powder RDP Powder are water-soluble redispersible powders, such as ethylene/vinyl acetate copolymers, vinyl acetate/ethylene tertiary carbonate copolymers, acrylic acid copolymers, etc., with polyvinyl alcohol as a protective colloid.
  • Waterproof agent
    Gypsum waterproofing agent is a technology that involves the development of gypsum to help achieve watertight concrete structures. TRUNNANO Gypsum waterproofing technology is available as a waterproof for gypsum concrete, or an integral admixture for concrete, for use in both above and below grade applications.
  • Concrete Crack Reducing Admixture
    Using the right admixtures (or synergistic mixtures) to prevent or reduce the effects of cracking will extend the service life of concrete and lead to better performance. Using the filters below, you can identify the type of crack and better understand the solution based on the crack type.
  • Gypsum defoamer
    The main function of gypsum defoamer: gypsum defoamer is a defoamer specially designed for gypsum. The main composition is modified polyether, esterified and high-carbon alcohols, refined by special technology.
  • Alkali-free Concrete Additives Liquid Concrete Accelerator
    The dosage of concrete accelerator is 6-9% of the cement weight. Concrete accelerator can replace the same amount of water, and the actual mixing amount should be determined after adjustments are made according to the cement type, label and construction temperature.
  • Aerogel Powder Particle
    Aerogel particles/powders are silica materials with three-dimensional network nanostructures.
  • Air Entraining Agent in Concrete
    Air-entraining agent refers to the ability to introduce a large number of evenly distributed tiny air bubbles in the concrete mixing process to reduce the bleeding and segregation of the concrete mixture, improve workability, and significantly improve the frost resistance and durability of hardened concrete admixtures.

Overview of Concrete Additives

Concrete additives also referred to as concrete admixtures, refer to the material added to improve and adjust the performance of concrete. Concrete admixtures are chemical additives or mineral additives added during concrete mixing to enhance specific properties of the fresh or hardened concrete, such as workability, durability, or early and final strength. They can either be liquid or powdered additives. The amount of concrete admixture is generally not more than 5% of the cement quality. Because concrete admixture can improve the performance of concrete effectively, and has good economic benefit. It has been widely used in many countries and has become an indispensable material in concrete.

Characteristic and Advantages of Conrete Additives

1. Improve the performance of concrete: The use of admixtures can improve the working performance of fresh concrete, improve the mechanical properties of hardened concrete, and improve the durability of concrete.

2. Save cement: The use of admixtures can reduce the water consumption of concrete and save cement, thereby reducing project costs.

3. Adjust the setting time: The use of admixtures can adjust the setting time of concrete to make it more suitable for construction needs and improve construction efficiency.

4. Improve rheological properties: The use of admixtures can improve the rheological properties of concrete, making it easier to construct and operate.

5. Environmental protection: The production and use of admixtures will not have a negative impact on the environment and comply with environmental protection requirements.

Applications of Concrete Additives

Construction field: In the construction field, concrete additives are mainly used to improve the performance of concrete and improve the quality of projects. For example, water-reducing agents can reduce the water consumption of concrete and improve its strength and durability; air-entraining agents can introduce tiny bubbles into concrete to improve its crack resistance and impermeability.

construction field concrete

concrete in construction field

Bridges and highways: In these areas, concrete additives are mainly used to improve the durability and stability of concrete. For example, waterproofing agents can increase the impermeability of concrete, giving it better durability in underwater or underground projects; retarders can extend the initial setting time and final setting time of concrete, making it more suitable for construction needs.

concrete in bridges and highways

concrete bridges and highways

Airport and railway areas: In these areas, concrete additives are mainly used to improve the quality of projects. For example, accelerators can harden concrete quickly and shorten construction time; thickeners can increase the viscosity of concrete, making it more uniform and reducing segregation and bleeding.

concrete in airport and railway areas

concrete in airport and railway areas

Company Profile

Luoyang Trunnano Tech Co., Ltd is professional in lightweight concrete and concrete admixtures solutions,for 10 years+, which is a professional company with supply and marketing integration.

We can supply high-quality polycarboxylate superplasticizer, waterproof agent, air-entraining agent, alkali-free accelerators and concrete early strength agent for concrete mix, all over the world.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.Send us an email or click on the needed products to send an inquiry.


Payment methods

L/C, T/T, Western Union, Paypal, Credit Card etc.


By sea, by air, by express, as customers request.

Storage conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.



What is the classifications of concrete additives?


1. Additives to improve the variable performance of concrete mixing. Including a variety of water-reducing agents, air-entraining agents and pumping agents. 

2. Adjust the concrete setting time, hardening performance admixture. Including retarding agent, early strength agent and accelerating agent. 

3. Additives to improve the durability of concrete. Including air entrainment agent, waterproof agent and rust inhibitor. 

4. Additives for improving other properties of concrete. Including aerating agent, expansion agent, colorant, antifreeze, waterproof agent and pumping agent .



What are the usage of concrete additives?


1. Can reduce the water consumption of concrete. Or you can increase the fluidity of concrete without increasing the amount of water used.

2. You can adjust the setting time of concrete.

3. Reduce concrete bleeding and segregation. Improved workability and water panning resistance.

4. Slump loss can be reduced. Increase permeability of pumped concrete.

5. It reduces shrinkage. The addition of an expansion agent can also compensate for shrinkage.

6. Delay the initial hydration heat of concrete. Reduce the temperature rise speed of mass concrete and reduce the occurrence of cracks.

7. Improve the early strength of concrete. Prevents freezing at negative temperature.

8. Improve strength, increase frost resistance, permeability resistance, wear resistance, corrosion resistance.

9. Control alkali-aggregate reaction. Prevent steel corrosion, reduce chloride ion diffusion.

10. Make concrete with other special properties.

11. Reduce the viscosity coefficient of concrete.


Which concrete additives are commonly used in bridge construction?


Water reducing agent: It can reduce the viscosity and internal friction of concrete, reduce the separation, precipitation and bleeding of concrete, and improve the uniformity and stability of concrete. In bridge construction, water reducing agents can effectively improve the construction efficiency and quality of concrete, especially during concrete preparation, mixing and transportation.

Retarder: It can delay the peak period of hydration heat and improve the workability of concrete, and reduce the water-cement ratio to achieve the purpose of reducing hydration heat. In bridge construction, retarder is mainly used for long-term construction projects, such as large-volume concrete pouring.

Expansion agent: It can produce a large number of bubbles in concrete, thereby improving the fluidity of concrete and reducing the shrinkage of concrete. In bridge construction, expansion agents can be used to create high-strength, high-durability concrete structures.

Waterproofing agent: Prevents moisture from penetrating into the concrete, thereby improving the durability of the concrete. In bridge construction, waterproofing agents can be used in the construction of various concrete structures, such as piers, beams, etc.


What additives can be used to increase the strength of concrete?


Expansion agent: It can replace cement in equal amounts and cause moderate expansion of concrete. On the one hand, it ensures the density of concrete, and on the other hand, it generates pressure inside the concrete to offset the partial tension generated in large-volume concrete such as bridges and dams. stress.

Chloride ion-based concrete super early strength agent: The main component is chloride ions, which react with water to produce calcium hydroxide and calcium chloride, thus improving the strength of concrete.

Micro-bead concrete super early strength agent: The main component is micro-beads, which improve the strength of concrete by forming a certain pore structure in the concrete.


What are cement enhancers?


Cement enhancer is a chemical additive used to improve the performance of cement. It can chemically react with cement to form a denser and denser building material structure, thereby improving the tensile strength, compressive strength and wear resistance of cement. characteristic. Common ingredients of cement reinforcements include polymers, polymer compounds, nanomaterials, etc., which can form a new three-dimensional network structure in cement to enhance the strength and durability of cement.


According to different application requirements and technical characteristics, how many categories of cement reinforcements can be divided into?


Silicate reinforcing agents: This type of reinforcing agent generates C-S-H gel through chemical reaction with cement to form a hardening system, which can significantly improve the strength, tightness and durability of cement products. 2

Siloxane enhancer: This enhancer can form a hydrophilic siloxane layer on the cement surface, which helps prevent the loss of water in the cement and plays a catalytic role in the hardening process. It is especially suitable for High fluidity concrete, self-leveling cement and high temperature resistant cement, etc.

Nano-silica: As a new type of cement enhancer, nano-silica has a particle size of less than 100nm. It can strengthen the internal structure of cement and improve the strength and durability of cement. It is suitable for use in high-performance cement products and high-strength concrete.

Carbon fiber: Carbon fiber is a high-strength material that, when used as a reinforcing agent, can improve the tensile strength and durability of cement products. It is especially suitable for the production of cement boards, cement pipes, cement beams and other products.

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    • Luoyang Tongrun Info Technology Co., Ltd. ( is the world's leading nanomaterial technology developer and application manufacturer, the company has more than 20 years of industry experience, after years of scientific research and production, has been professionals in lightweight concrete and foam concrete solutions. We can supply concrete foaming agents, superplasticizers, aerogels and foam concrete strength enhancers for lightweight concrete mix, CLC blocks all over the world, suitable for ordinary cement foamed concrete cast-in-place, block, plate, insulation wall, etc.