Can Soy Methyl Esters Reduce Fluid Transport and Improve Durability of Concrete?

Abstract

Many durability problems in concrete are caused by the transport of water or fluid containing aggressive ions. As a result, many seek to reduce the absorption and flow of fluids in concrete through the use of admixtures or topical sealants that refine or block pores. Results are presented of a pilot study that evaluated the potential use of soy methyl ester–polystyrene blends (SME–PS) as either an admixture or a topical treatment or both. Results are presented for tests on the fresh properties, hardened properties, and transport properties of concrete containing SME–PS. Dramatic reductions in fluid absorption can be obtained with SME–PS, with little noticeable influence on set time, strength, or shrinkage. Eventually the application of SME–PS to concrete may have the potential to be used as a method to penetrate into the pore structure at saw cuts and reduce long-term damage.