Mitigating External Corrosion Through Nano-Modified Cement-Based Coatings

Under Development

Columbia University More »

Pipeline and Hazardous Materials Safety Administration (PHMSA)

Damage Prevention and Mitigation -- Excavation Damage Prevention

This project addresses three main tasks: 1) Develop a processing technique to produce the cement-based coating by effective dispersion of nanomaterials through sonication (physical method) and surfactant treatment (chemical method). 2) Characterize key properties of the coating material relevant to coating applications: rheology, porosity, dimensional stability, and crack resistance. 3) Characterize key hardened properties: porosity and crack resistance under fatigue and restrained shrinkage. The result of the project is an engineered cement-based coating material with superior sealing properties that is also easy to use.

External corrosion is a critical concern for pipelines. The advantage of cement-based coatings over other types is that they can be engineered to have mechanical properties to provide structural stability for the pipeline, as well as to offset buoyancy.

Increased Safety - Mitigating corrosion reduces threat risk to pipeline integrity and safety.

PHMSA, https://primis.phmsa.dot.gov/matrix/PrjHome.rdm?prj=510