Polycarboxylate Ether (PCE) is a type of polymer widely used as a superplasticizer in the construction industry, especially in concrete. This additive reduces the water demand in concrete mixtures while increasing the fluidity and workability of the concrete without compromising its final strength.
Today, the use of chemical additives in cementitious systems has seen a significant increase to improve and optimize the properties of both fresh and hardened concrete, such as flowability, setting time, mechanical strength, durability, and more. Among these, superplasticizers or high-range water reducers are used to either increase flowability at a constant water-to-cement ratio or reduce the water-to-cement ratio while maintaining the same concrete workability.
Superplasticizers based on polycarboxylate ether represent the new generation of strong water reducers. They function by creating spatial chains in the cement paste, dispersing the cement particles, and thereby enhancing the concrete’s workability.
Polycarboxylates are high molecular weight linear polymers composed of carboxylate groups. The polycarboxylate ether molecule is produced in various forms and structures, each of which exerts different effects on the concrete. The primary and defined structure of this material consists of a large molecule with a main chain and attached side branches. The final product’s unique properties depend on the type of monomers used in the composition and the chosen production method for polycarboxylate ether. This leads to different hypotheses in selecting raw materials and production methods. The performance of polycarboxylates in cement and mortar depends on key characteristics such as molecular weight, the length and density of the main and side chains, and the charge density, all of which are influenced by the method and process of polycarboxylate production. Additionally, the effectiveness of various polycarboxylates as concrete superplasticizers is also influenced by the cement and aggregate characteristics.
The molecular structure of polycarboxylates consists of carboxyl groups attached to the main polymer chain, along with long side chains that, after dispersing the cement particles, act as barriers to keep them apart. This exposes more surface area of the particles to the available water. In general, the most significant difference between polycarboxylates and older-generation compounds lies in their water reduction capabilities and minimized slump loss in concrete.
the mechanism of action of polycarboxylate superplasticizers differs from older generations. Polycarboxylate superplasticizers, like melamine and naphthalene-based superplasticizers, adsorb onto the surface of cement particles during hydration. The carboxyl (COOH-) groups are responsible for charging the cement particles and dispersing them. The main difference between polycarboxylate superplasticizers lies in the presence of long side chains, which significantly enhance the efficiency of these compounds. After the cement particles are dispersed, these side chains help maintain a large separation between particles due to steric hindrance. The functioning of this superplasticizer is illustrated in the figure below.
Parsman Chemical, equipped with a skilled and experienced R&D team, along with modern industrial and laboratory facilities, is one of the few producers of polycarboxylate polymers in Iran.
Utilizing the latest synthesis methods, the company produces the most efficient and up-to-date generation of various types of polycarboxylates, each with unique features to meet the needs of users, production units, and concrete consumers. Below are three of the most demanded products produced by this company.
Polycarboxylate Ether (PCE) manufacturing companies specialize in producing advanced chemical additives for the construction industry, particularly for concrete applications. These companies utilize modern technology and state-of-the-art equipment to produce PCE, which is recognized as one of the most effective superplasticizers for concrete. PCE enhances the workability, reduces water consumption, and increases the final strength of concrete, making it essential for high-quality construction projects.
These companies typically prioritize Research and Development (R&D), optimizing production processes to offer high-performance, eco-friendly products. In addition to manufacturing products that comply with international standards, they also provide technical support and services to ensure the optimal performance of these additives in concrete pouring projects.
Parsman Chemical, equipped with a skilled and experienced R&D team, along with modern industrial and laboratory facilities, is one of the few producers of polycarboxylate polymers in Iran.
Utilizing the latest synthesis methods, the company produces the most efficient and up-to-date generation of various types of polycarboxylates, each with unique features to meet the needs of users, production units, and concrete consumers. Below are three of the most demanded products produced by this company.
The polycarboxylate ether-based products developed by Parsman Chemical, utilizing the latest synthesis and production methods, cater to the diverse needs of the construction and concrete industries. Each of these products, with their unique characteristics, including strong water reduction and excellent slump retention, contributes significantly to improving the quality and efficiency of concrete projects. As one of the leading manufacturers in Iran, Parsman Chemical continues to innovate and enhance its products to offer better solutions to the market.
Polycarboxylate Ether (PCE), as a new generation of superplasticizers, plays a pivotal role in modern concrete technology. Unlike older generations of superplasticizers like melamine and naphthalene, polycarboxylates have an advanced molecular structure that provides superior performance in terms of water reduction and slump retention. The following section will provide a detailed examination of the features and benefits of this polymer and its impact on the properties of concrete.
This product is recognized as a high-performance water reducer with slump retention capabilities. Utilizing advanced polycarboxylate ether technology, ARSAN 071 significantly reduces water consumption in concrete without compromising its workability. Due to its long side chains, this product provides excellent cement particle dispersion and prevents slump loss. ARSAN 071 is particularly suitable for projects that require high fluidity and reduced water content.
ARSAN 075 is another high-performance water reducer with excellent slump retention. It is designed for use in concrete mixtures where significant water reduction and high fluidity are required. By reducing the water-to-cement ratio, ARSAN 075 not only preserves the workability of the concrete but also significantly enhances its compressive strength and durability. These features make ARSAN 075 ideal for technically demanding projects such as bridges, tunnels, and high-rise buildings.
This product is known as an excellent slump retaining agent. YASAN 081 is one of the most advanced superplasticizers, capable of reducing water consumption in concrete while maintaining its fluidity and workability over an extended period. This feature ensures that the concrete does not experience a loss of fluidity during transportation or under different weather conditions, thereby guaranteeing the final quality of concrete structures. YASAN 081 is widely used in urban construction, infrastructure, and industrial projects.
The polycarboxylate ether-based products developed by Parsman Chemical, utilizing the latest synthesis and production methods, cater to the diverse needs of the construction and concrete industries. Each of these products, with their unique characteristics, including strong water reduction and excellent slump retention, contributes significantly to improving the quality and efficiency of concrete projects. As one of the leading manufacturers in Iran, Parsman Chemical continues to innovate and enhance its products to offer better solutions to the market.
For purchasing Polycarboxylate Ether from Parsman Shimi, you can benefit from high-quality products that meet top industry standards, enhancing the efficiency and durability of concrete in your construction projects. Parsman Shimi offers various types of PCE at competitive prices, fulfilling your needs for concrete superplasticizers in the best possible way. For consultation and more information about purchasing conditions, contact our experts.
Polycarboxylate Ether (PCE), as a new generation of superplasticizers, plays a pivotal role in modern concrete technology. Unlike older generations of superplasticizers like melamine and naphthalene, polycarboxylates have an advanced molecular structure that provides superior performance in terms of water reduction and slump retention. The following section will provide a detailed examination of the features and benefits of this polymer and its impact on the properties of concrete.
One of the most important characteristics of polycarboxylate ether is its ability to significantly reduce the water content in concrete mixtures. This water reduction, without compromising the workability of the concrete, enhances its final strength and improves the durability of the structure. By reducing the water-to-cement ratio, the compressive strength of the concrete increases significantly, which is especially important in critical and high-performance projects such as dams, bridges, and high-rise buildings.
Another remarkable feature of polycarboxylate ether is its ability to retain the slump or fluidity of the concrete over time. This is particularly valuable in projects where concrete needs to be transported over long distances or where work takes place under challenging weather conditions. Slump retention ensures that the concrete remains usable for a longer period without the need for additional water, preventing cracks and potential defects in the final structure.
The working mechanism of polycarboxylate ether is based on creating an electric charge on the surface of cement particles and establishing steric hindrance between these particles. This mechanism helps to evenly disperse the cement particles within the concrete mixture and prevents them from clumping together. As a result, the workability and mechanical properties of the concrete are significantly improved.
The use of polycarboxylate ether not only enhances the mechanical properties of concrete but also increases its durability against adverse environmental conditions such as freeze-thaw cycles, chemical attacks, chloride ion penetration, and other aggressive elements. These properties make polycarboxylate ether ideal for projects requiring a long service life.
Another advantage of polycarboxylate ether is its high compatibility with different types of cement and aggregates. This means it can be used across various projects with diverse conditions and materials, yielding optimal results. This versatility has led to the widespread use of polycarboxylates in the construction industry.
Polycarboxylate Ether (PCE), with its unique features such as strong water reduction, exceptional slump retention, effective cement particle dispersion, and enhanced durability, has become an integral component of modern concrete technology. The use of this polymer not only improves the quality and performance of concrete during construction but also ensures the long-term durability and strength of structures. This advanced technology has revolutionized the construction industry, making it one of the most widely used chemical additives in modern concrete formulations.
Parsman Shimi, as one of the leading manufacturers of concrete additives in Iran, offers high-quality Polycarboxylate Ether (PCE). PCE is one of the most effective additives for improving workability and reducing water consumption in concrete, particularly in high-strength and self-compacting concretes. For orders and more information about sales conditions and pricing, you can contact the sales team at Parsman Shimi and benefit from their specialized services.
The price of Polycarboxylate Ether (PCE) in Iran is influenced by various factors such as the cost of raw materials, production costs, exchange rates, and market demand. This additive is used as a superplasticizer in the concrete industry, and prices can vary based on the quality and type of PCE produced. Domestic manufacturers and importers also play a significant role in determining the price of this product. Additionally, fluctuations in oil and petrochemical prices can affect production costs and, subsequently, the final price of PCE. For accurate price information, it is recommended to stay updated with the market and consult different manufacturers and suppliers.
