Bonding strength of epoxy coatings used to protect concrete in wastewater facilities and 3-D FEM analyses: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Bonding strength of epoxy coatings used to protect concrete in wastewater facilities and 3-D FEM analyses

Liu, J. / Vipulanandan, C.

In this study, three commercially available epoxy-based coatings were selected to determine the changes in bonding strengths to concrete with curing time. The CIGMAT CT-2 (modified ASTM D 4541) test was used to determine the bonding strengths of the coatings to dry and wet concrete surfaces. The tests were conducted over a period of two years. A total of 33 CIGMAT CT-2 tests (laboratory and in-situ tests) were performed on the three epoxy coatings. Five failure types were identified. Test results showed that although all of the coatings were epoxy based, the bonding strength of the coatings to the dry and wet concrete surfaces were different. Epoxy-A (pure epoxy) and Epoxy-B (glass fiber reinforced epoxy) had good bonding strength ( >1.4 MPa, 200 psi) on both dry and wet concrete surfaces; Epoxy-C (cementitous based epoxy coating) had poor cohesive bonding strength (<0.7 MPa, 100 psi) between the topcoat (epoxy) and the base material. A 3-D FEM analysis was performed to determine the effects of coating modulus and thickness on the stress distribution in the coating, coating to concrete interface and concrete.

Access

Check availability in my library

Page navigation

Document information

Export, share and cite

Bonding strength of epoxy coatings used to protect concrete in wastewater facilities and 3-D FEM analyses

Liu, J. / Vipulanandan, C.

In this study, three commercially available epoxy-based coatings were selected to determine the changes in bonding strengths to concrete with curing time. The CIGMAT CT-2 (modified ASTM D 4541) test was used to determine the bonding strengths of the coatings to dry and wet concrete surfaces. The tests were conducted over a period of two years. A total of 33 CIGMAT CT-2 tests (laboratory and in-situ tests) were performed on the three epoxy coatings. Five failure types were identified. Test results showed that although all of the coatings were epoxy based, the bonding strength of the coatings to the dry and wet concrete surfaces were different. Epoxy-A (pure epoxy) and Epoxy-B (glass fiber reinforced epoxy) had good bonding strength ( >1.4 MPa, 200 psi) on both dry and wet concrete surfaces; Epoxy-C (cementitous based epoxy coating) had poor cohesive bonding strength (<0.7 MPa, 100 psi) between the topcoat (epoxy) and the base material. A 3-D FEM analysis was performed to determine the effects of coating modulus and thickness on the stress distribution in the coating, coating to concrete interface and concrete.

Bonding strength of epoxy coatings used to protect concrete in wastewater facilities and 3-D FEM analyses

Liu, J. / Vipulanandan, C.

In this study, three commercially available epoxy-based coatings were selected to determine the changes in bonding strengths to concrete with curing time. The CIGMAT CT-2 (modified ASTM D 4541) test was used to determine the bonding strengths of the coatings to dry and wet concrete surfaces. The tests were conducted over a period of two years. A total of 33 CIGMAT CT-2 tests (laboratory and in-situ tests) were performed on the three epoxy coatings. Five failure types were identified. Test results showed that although all of the coatings were epoxy based, the bonding strength of the coatings to the dry and wet concrete surfaces were different. Epoxy-A (pure epoxy) and Epoxy-B (glass fiber reinforced epoxy) had good bonding strength ( >1.4 MPa, 200 psi) on both dry and wet concrete surfaces; Epoxy-C (cementitous based epoxy coating) had poor cohesive bonding strength (<0.7 MPa, 100 psi) between the topcoat (epoxy) and the base material. A 3-D FEM analysis was performed to determine the effects of coating modulus and thickness on the stress distribution in the coating, coating to concrete interface and concrete.

Access

Check availability in my library

Page navigation

Document information

Export, share and cite

Document information

Title:

Bonding strength of epoxy coatings used to protect concrete in wastewater facilities and 3-D FEM analyses

Contributors:

Liu, J. (author) / Vipulanandan, C. (author)

Published in:

Optimizing Pipeline Design, Operations, and Maintainance in Today's Economy, PIPELINES, ASCE Pipeline Division Specialty Conference, 2005 ; 827-837

Publication date:

2005

Size:

11 Seiten, 7 Quellen

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

Beschichtung (Überzug) , Beton , Finite-Elemente-Methode , mechanische Spannungsverteilung , Grenzfläche , Bindefestigkeit , Abwasserrohr , Epoxidharz , Betonrohr , dreidimensionale Darstellung

Similar titles

Bonding Strength of Epoxy Coatings Used to Protect Concrete in Wastewater Facilities and 3-D FEM Analyses

Liu, J. / Vipulanandan, C. / American Society of Civil Engineers | British Library Conference Proceedings | 2005

Tensile bonding strength of epoxy coatings to concrete substrate

Liu, J. | Online Contents | 2005

Tensile bonding strength of epoxy coatings to concrete substrate

Liu, J. / Vipulanandan, C. | Tema Archive | 2005

Tensile bonding strength of epoxy coatings to concrete substrate

Liu, J. / Vipulanandan, C. | Elsevier | 2004

Tensile bonding strength of epoxy coatings to concrete substrate

Liu, J. / Vipulanandan, C. | British Library Online Contents | 2005