title: Improvement of reinforced concrete properties based on modified starch/polybutadiene nanocomposites.
abstract: A novel polymer-modified cement concrete with carboxymethyl starch (CMS) and 1,4-cis polybutadiene (PBD) system by mixing polymer dispersions or redispersible polymer powders with the fresh mixture have been examined. In this paper, the addition of CMS-PBD powders in an aqueous solution is studied. Polymeric molecules are supplied on a molecular scale, improving the approach of the relatively large cement grains by the polymers. The chemical and mechanical properties of CMS-PBD-modified cement concrete have been studied. The additions of very small amounts of CMS-PBD polymeric system results in an improvement of the durability and the adhesion strength of the cementitious materials, which makes them appropriate as repair materials.
authors.affiliation: Faculty of Architecture Engineering, Islamic Azad University, Tabriz, Iran.
authors.forename: Amin
authors.initials: A
authors.lastname: Saboktakin
authors.affiliation: Nanostructured Materials Synthesis Lab., ArianchemieGostar Research Company, Tabriz, Iran. Electronic address: saboktakin123@gmail.com.
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Saboktakin
mesh_terms: D002070:Butadienes / Q000737:chemistry*; D003252:Construction Materials / Q000032:analysis*; D020724:Elastomers / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D010316:Particle Size; D013213:Starch / Q000031:analogs & derivatives / Q000737:chemistry*
chemical_list: D002070:Butadienes; D020724:Elastomers; C028834:polybutadiene; D013213:Starch; C034848:carboxymethyl starch
keywords: Carboxymethyl starch; Mechanical properties; Polybutadiene; Reinforced concrete