PCEs are adsorbed on to the surface of cement particles by means of their negatively billed anchoring teams (including carboxyl teams) to form a thicker adsorption layer, creating electrostatic repulsion and steric hindrance, thus enhancing the flowability from the cement slurry. It's chemical admixtures that are additional to your concrete https://nanosiliconpowder05701.webbuzzfeed.com/38064680/fascination-about-air-entrained-concrete