Print Email Facebook Twitter Influence of the relative molecular mass of viscosity enhancers on chloride diffusion in mortars: a preliminary study Part of: 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites· list the conference papers Title Influence of the relative molecular mass of viscosity enhancers on chloride diffusion in mortars: a preliminary study Author Zhao, Lixiao (Southeast University, China) Feng, Pan (Southeast University, China - State Key laboratory of High Performance Civil Engineering Materials, China) Date 2021-04-29 Abstract Chloride diffusion in concrete is one of the key parameters of durability design for structure. Existing methods of reducing the chloride diffusion such as decreasing water-cement ratio and adding mineral admixtures often lead to increase the risk of concrete cracking. In this study, we focused on mitigating the permeation of chloride ions in concrete by adding viscosity enhancers to improve the viscosity of concrete pore solution, without densifying the pore structure of concrete. A comparative study was conducted among the conductivity of KCl solutions with the addition of polyethylene glycol (PEG) with 11 different relative molecular masses. The results show that the chloride diffusion can be most effectively reduced when the relative molecular mass remains in the range of 400-1500. Subject ConductivityViscosity enhancerChloride diffusionRelative molecular mass To reference this document use: http://resolver.tudelft.nl/uuid:435021b2-a5bd-4280-aca2-7af8975b9ad9 Part of collection Conference proceedings Document type conference paper Rights (c) 2021 the authors Files PDF Influence of the relative ... ortars.pdf 1.09 MB Close viewer /islandora/object/uuid:435021b2-a5bd-4280-aca2-7af8975b9ad9/datastream/OBJ/view