Concrete Admixture PCE Liquid
Concrete admixture PCE liquid is the latest generation of high-performance admixture used to improve the properties of concrete. It is a type of concrete admixture known as high-range water-reducing admixtures or superplasticizers. It is composed of an aqueous copolymer of carboxylic acids. This admixture exhibits a high efficiency at low doses and can be easily formulated with the inclusion of a defoamer. It offers excellent control over the rheological properties of concrete and has the ability to enhance its strength. When added to concrete, it reduces bleeding and material separation, allowing for a significant reduction in water content by at least 30%. Additionally, they help in retarding the setting time of concrete.
Advantages of Concrete Admixture PCE Liquid
Improved workability
Concrete admixture PCE liquid provides more efficient concrete mixes with improved strength and accelerated workability without compromising setting properties. It can also enhance the workability of fresh concrete, making it easier to pump and pour.
Reduced permeability
Admixtures can reduce the permeability of concrete, which reduces the risk of moisture penetration into the concrete.
High-quality concrete mixes
Concrete admixture PCE liquid obtains excellent concrete mixes with improved cement hydration and pouring characteristics. This leads to improved strength and high-quality concrete.
Reduced shrinkage
Concrete admixtures can decrease the shrinkage of concrete, which can help reduce the risk of cracking and other damage. These admixtures provide an internal curing system for the concrete mix. The presence of polycarboxylate ethers enables the admixture to absorb and retain water within the concrete mixture.
Improved finish
Concrete admixture PCE liquids can refine the finish of concrete by making it smoother appealing, and a more consistent surface. The improved finish helps enhance the durability of the concrete surfaces. This admixture can also provide a more uniform mix design and decrease the tendency for shrinkage cracks. Additionally, it can help reduce water absorption and stop water seepage.
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Polycarboxylate Superplasticizer For Concrete AdmixturePolycarboxylate Superplasticizer For Concrete Admixture is kind of high performanceAdd to Inquiry -
Water Reducing Concrete Admixture PCE LiquidWater Reducing Type Concrete Admixture PCE Liquid is the latest generation high performanceAdd to Inquiry -
Slump Retention Concrete Admixture PCE LiquidSlump Retention Type Concrete Admixture PCE Liquid is a kind of carboxylic acid graft copolymerAdd to Inquiry
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Our factory
Our factory, Shandong Zhuoxing Chemical is one of the largest manufacturer of polyoxyethylene ether (polycarboxylate monomer)TPEG/HPEG/EPEG in China, with annual capacity 80,000 tons and output 72,000 tons. We also produce third genertion concrete admixture polycarboxylate superplasticizer in liquid form with solid content 50% and polycarboxylate superplasticizer powder with solid content of 97% min. The total annual capacity of PCE is 100,000.00 tons.The factory is located in Xinhai Industrial Zone, Binzhou City, Shandong Province.
R&D
The R&D team is always trying to keep the production technology updated by maintaining its communication with Shandong University, Qingdao University of Science and Technology and other scientific centers in China. Now we have full production lines from HPEG, TPEG,EPEG to PCE superplasticizer, we also provide technical services for our customers.
Quality control
Our company from raw materials to finished products, every link is strictly checked, our service from pre-sale service to after-sales, every step is done in place. Incoming raw materials are inspected to ensure that they are qualified before being put into production; Effectively control the whole production process to ensure that the products meet the specified requirements; Sampling and testing the batch of products before they leave the factory.
Our service
Our company has a professional R&D team.The R&D team provide technical services for our customers. We supply synthesis receipe for producing water reducing type PCE, slump retention type PCE, set retarding type (long slump retention type ) PCE, early strength type PCE. we always proud to serve your requirement with quality construction chemicals, and will devote and extend all the assistance you require for you to complete your project with success.
Performance Characteristics of Concrete Admixture PCE Liquid
Low dosage and high water reduction rate
The water reduction rate can be as high as 45%, which can be used to prepare high-strength and high-performance concrete.
Small loss when slump is light
The slump loss of premixed concrete in 2h is less than 15%, which is very beneficial for long-distance transportation and pumping construction of commercial concrete.
Good working performance
Even under high slump conditions, concrete prepared with PCE water reducer will not have obvious segregation and bleeding, and the appearance and color of the concrete are uniform. It is especially beneficial for preparing high-flow concrete, self-leveling concrete, self-compacting concrete, and plain water facing concrete. When used to prepare high-grade concrete, the concrete has good workability and cohesion, and the concrete is easy to mix.
Good compatibility
The polycarboxylate ether has good compatibility with different types of cement and admixtures, which solves the compatibility problem of other types of water reducers with cementitious materials.
Small concrete shrinkage
Concrete admixture PCE liquid can significantly reduce concrete shrinkage and significantly improve concrete volume stability and durability. Extremely low alkali content. Alkali content ≤0.2%.
Good economic benefits
The overall cost of the project is lower than that of other types of products. Green and environmentally friendly. This product is non-toxic and harmless, and is a green and environmentally friendly product that is conducive to sustainable development.
High-rise buildings and infrastructure
Widely used in large-scale buildings and bridge projects that require high strength and durability.
Prestressed concrete and precast components
Improve the fluidity and early strength of concrete to facilitate the production of precast components.
Large-volume concrete construction
Effectively control temperature rise and reduce cracks, suitable for large-volume concrete pouring in hydropower stations, nuclear power plants, etc.
Repair and reinforcement projects
In the repair of old concrete structures, improve the bonding strength of the interface between new and old concrete.
Special environmental engineering
In harsh environments such as offshore engineering and saline-alkali land, its corrosion resistance can be used to improve the durability of concrete.
Concrete adminders concrete admixture PCE liquid (PCPA) are a type of plastic polymer that is commonly used in the construction industry. These admiddles are often used to add extra strength and durability to concrete structures.
The concrete admixture PCE liquid superplasticizer is a specific type of PCE admender that has been specifically formulated for use in this application. It is designed to provide high levels of strength and durability without adding any added weight or other environmental impacts.
One of the main advantages of using concrete admixture PCE liquid as a PCE admender is its ability to improve the mechanical properties of concrete structures. The addition of PCE leads to an increase in the tensile strength andability of concrete materials, which can be important in certain applications such as infrastructure projects.
In addition to its physical benefits, concrete admixture PCE liquid also offers some environmental benefits. It is a biodegradable material and does not require significant amounts of energy to produce, making it an ideal choice for environmentally conscious construction practices. Overall, concrete admixture PCE liquid is a versatile and effective type of PCE admender that can help improve the performance of concrete structures while minimizing environmental impact. Its addition to concrete admiments is a cost-effective and sustainable solution for the construction industry.
In some cases, concrete admixture PCE liquid water reducing agent has its own antifreeze performance without compounding: the concrete admixture PCE liquid water reducing agent synthesized by partially replacing acrylic acid with itaconic acid (1:1 substitution) can withstand a negative temperature environment of about -5 degrees Celsius. The solution containing concrete admixture PCE liquid 0.2% (dry basis) can not freeze at -5 degrees Celsius. However, it is mainly the dilute solution of admixture with low concrete admixture PCE liquid content and low solid content that starts to freeze at close to 0 degrees Celsius. Adding enough early strength agent and a small amount of antifreeze agent can prevent the water reducer itself in a wide low temperature range. Freeze, and at the same time have the frost damage of antifreeze concrete at about -5 degrees Celsius.
Since concrete admixture PCE liquid is a high-efficiency air-entraining water-reducing agent, it can be mixed with an early-strength agent and an appropriate amount of antifreeze. When necessary, a viscosity-changing agent and a coagulant should be added. The main antifreeze chemical components are sodium nitrite, calcium nitrite, potassium nitrite, sodium nitrate, calcium nitrate, potassium nitrate, sulfate, sodium chloride, calcium chloride, ammonia, urea and methanol, etc.
However, sodium nitrite should not be used as an antifreeze for concrete admixture PCE liquid water reducing agents. Sodium nitrite is a secondary oxidant. When contacted with weakly acidic concrete admixture PCE liquid solution, a redox reaction occurs and nitrogen oxide is released. When contacted with air, it is oxidized to NO2 gas, which is dark yellow and toxic, and the antifreeze performance will no longer exist. Similarly, potassium nitrite should not be used as an antifreeze component. The decomposition reaction can be alleviated by first diluting the nitrite with a large amount of water. Ammonia and urea are generally not used as antifreeze components for concrete admixture PCE liquid. First, they are prohibited to be used as antifreeze components in indoor buildings. Second, they have retardation properties for concrete, which prolongs the initial setting time of standard concrete admixture PCE liquid. Chloride is generally not used in concrete admixture PCE liquid. First, it is easy to corrode steel bars and cannot use sodium nitrite to prevent rust at the same time. Second, the chloride salt solution will cause delamination after standing in the concrete admixture PCE liquid solution.
How to Select and Use Concrete Admixture PCE Liquid
Fully understand the characteristics of each component of the admixture
A single type of admixture usually only plays a major role in a single aspect and is difficult to fully meet the various requirements of concrete strength, durability, workability, etc. Therefore, it is necessary to use two or more different types of admixtures in combination to achieve the effect of 1+1≥2 and meet the performance requirements of concrete. Concrete production companies generally use concrete admixture PCE liquid that are mainly composed of water reducers, retarders, air-entraining agents, water-retaining agents, thickeners, etc. When using admixtures, it is important to understand the role and characteristics of each component in the concrete. This is the prerequisite for correctly using admixtures. For example, the retarder component not only slows down the setting of concrete but can also appropriately increase the water reduction rate and extend the slump loss. However, excessive use of retarders can cause concrete bleeding and serious retardation. Air-entraining agents can improve the frost resistance, durability, and flowability of concrete, but excessive use can cause a decrease in concrete strength. Thickening components in admixtures can improve the cohesiveness of concrete and reduce bleeding, but excessive amounts can cause a decrease in flowability.
Importance of compatibility testing for concrete admixture PCE liquid
In the process of concrete production and construction, it is important to fully consider the interaction between admixtures and other raw materials, mix proportions, climate, and construction conditions in order to formulate concrete that meets performance requirements. In fact, many problems with concrete mixtures are related to the compatibility of admixtures and other raw materials to some extent. For example, abnormal phenomena such as segregation, bleeding, excessive air bubbles, rapid loss of slump, and abnormal setting time in concrete mixtures are mostly caused by poor compatibility of certain components of admixtures with the cementitious materials.
Strict control of concrete admixture PCE liquid quality
Strict control of admixture quality is the premise and foundation for rational use of admixtures. The incoming inspection of admixtures should be tested according to the quality indicators specified in the contract. When signing the admixture procurement contract, the method of resolving quality disputes should be agreed upon in order to avoid confusion. Upon arrival at the plant, admixtures should be strictly inspected, and products that do not meet the quality requirements should not be allowed in. Secondly, admixtures should be stored according to their categories, with clear labeling, to avoid engineering quality accidents caused by mixing or confusing different types of admixtures. Thirdly, there are two main methods for testing admixtures, one is the cement paste method and the other is the concrete method.
Determination and application of concrete admixture PCE liquid
When the dosage of admixtures is too high, the concrete will exhibit segregation, bleeding, and difficulty in consolidation. If the water content is reduced to prevent bleeding, the strength of the concrete will increase. If the dosage of admixtures is too low, the slump will be too small. Increasing the water content to improve the flowability of concrete will result in lower concrete strength. Each concrete strength grade has an appropriate dosage of admixture that will result in the desired slump and strength. For example, when pumping c30 concrete, the dosage of admixture is 2%, and the concrete is suitable for use. If the same dosage of admixture is used for c15 concrete, it will generally bleed severely. When designing concrete mix ratios, the difference in admixture dosage should be considered. For c30, c25, c20, and c15, the dosage of admixture can be designed as 2%, 1.8%, 1.6%, and 1.4%, respectively. This makes it easier to quickly infer the dosage of admixture for various types of concrete.
Our factory
Our factory, Shandong Zhuoxing Chemical is one of the largest manufacturer of polyoxyethylene ether (polycarboxylate monomer)TPEG/HPEG/EPEG in China, with annual capacity 80,000 tons and output 72,000 tons. We also produce third genertion concrete admixture polycarboxylate superplasticizer in liquid form with solid content 50% and polycarboxylate superplasticizer powder with solid content of 97% min. The total annual capacity of PCE is 100,000.00 tons.The factory is located in Xinhai Industrial Zone, Binzhou City, Shandong Province. The R&D team is always trying to keep the production technology updated by maintaining its communication with Shandong University, Qingdao University of Science and Technology and other scientific centers in China. Now we have full production lines from HPEG, TPEG,EPEG to PCE superplasticizer, we also provide technical services for our customers. Our company from raw materials to finished products, every link is strictly checked, our service from pre-sale service to after-sales, every step is done in place. Incoming raw materials are inspected to ensure that they are qualified before being put into production; Effectively control the whole production process to ensure that the products meet the specified requirements; Sampling and testing the batch of products before they leave the factory.
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