Texas-based Lyondell Chemical Company has introduced Ethacryl HF (high flow) dispersants, a new product for the concrete/cement market.
“Ethacryl HF dispersants can improve workability and reduce water content and segregation of concrete/cement versus traditional dispersants,” the company said.
“The new product can also improve initial and retained slump without increasing set times, and enhance pumping ability and concrete uniformity. Other benefits include increased productivity, lower costs and improved concrete properties, such as improved finishing characteristics and increased compressive and flexural strength.”
Ethacryl HF dispersants are part of Lyondell’s growing family of high-performance aqueous dispersants used in a variety of applications, including wallboard, gypsum and inks. The product is now available exclusively in Europe.
Lyondell’s Ethacryl dispersants are water-soluble, polycarboxylate copolymers that can enhance the properties of many products and applications. The copolymers have a unique comb-branched structure, which provides dual dispersing/stabilisation mechanisms (electrostatic and steric) that reduce particle flocculation, leading to improved fluidity and excellent stabilisation properties.
“Because of their comb-branched structure, Ethacryl HF dispersants are ideal for concrete manufacturers that are looking to reduce water consumption and increase workability during the concrete placement process,” says Christophe Salus, business development and marketing manager, Lyondell.
Through its position in propylene oxide and ethylene oxide, Lyondell produces the key raw materials found in Ethacryl. According to Salus, “this gives Lyondell a unique position in the market, because it brings the strength of key raw material integration to the manufacturing and marketing of these dispersants.”
The company manufactures basic chemicals and derivatives including ethylene, propylene, titanium dioxide, styrene, polyethylene, propylene oxide and acetyls. It is also a refiner of heavy, high-sulfur crude oil and a significant producer of gasoline-blending components.
