Title:
Modification of Portland Cement Concrete with Epoxy as Admixture
Author(s):
Sandor Popovics
Publication:
Symposium Paper
Volume:
89
Issue:
Appears on pages(s):
207-230
Keywords:
admixtures; compressive strength; concrete durability;
epoxy resins; marine atmospheres; plasticizers; polymerization;
splitting tensile strength.
DOI:
10.14359/6250
Date:
12/1/1985
Abstract:
The work presented is a portion of a larger investiga-tion concerning the improvement of durability of concrete structures in seawater. Therefore, as an introduction, the deterioration of reinforced concrete in corrosive environment is discussed followed by a description of two types of polymer modification of concrete. This latter means the addition of a liquid polymer of polymerizable system to the fresh concrete. The major portion of the paper presents a new investigation concerning the effects of epoxy modification on the properties of concrete, primarily strength. It is demonstrated that the addition of a suitable epoxy to the fresh concrete can increase the concrete strength significantly. This strength improvement can be further increased by the simultaneous use of a compatible superplasticizer, or an accelerator, or both.