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Acid Attack on PCCP Mortar Coating

Jana, Dipayan / Lewis, Richard A.

During the failure investigation of a 2.59 meter (102 inch) diameter prestressed concrete cylinder pipe (PCCP) sewer force main, petrographic examination of mortar coating samples revealed that the protective qualities of the coating had been environmentally degraded by exposure to acidic soils. While the mechanisms of carbonation of PCCP from atmospheric carbon dioxide in the form of carbonic acid attack are well documented, relatively little information is available on the effects of acidic soils on PCCP mortar coating. Petrographic examinations of mortar coatings exposed to acidic soil is presented along with discussion of the mechanisms involved in the coating deterioration.

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Acid Attack on PCCP Mortar Coating

Jana, Dipayan / Lewis, Richard A.

During the failure investigation of a 2.59 meter (102 inch) diameter prestressed concrete cylinder pipe (PCCP) sewer force main, petrographic examination of mortar coating samples revealed that the protective qualities of the coating had been environmentally degraded by exposure to acidic soils. While the mechanisms of carbonation of PCCP from atmospheric carbon dioxide in the form of carbonic acid attack are well documented, relatively little information is available on the effects of acidic soils on PCCP mortar coating. Petrographic examinations of mortar coatings exposed to acidic soil is presented along with discussion of the mechanisms involved in the coating deterioration.

Acid Attack on PCCP Mortar Coating

Jana, Dipayan / Lewis, Richard A.

During the failure investigation of a 2.59 meter (102 inch) diameter prestressed concrete cylinder pipe (PCCP) sewer force main, petrographic examination of mortar coating samples revealed that the protective qualities of the coating had been environmentally degraded by exposure to acidic soils. While the mechanisms of carbonation of PCCP from atmospheric carbon dioxide in the form of carbonic acid attack are well documented, relatively little information is available on the effects of acidic soils on PCCP mortar coating. Petrographic examinations of mortar coatings exposed to acidic soil is presented along with discussion of the mechanisms involved in the coating deterioration.

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Order at Subito €

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Title:

Acid Attack on PCCP Mortar Coating

Contributors:

Jana, Dipayan (author) / Lewis, Richard A. (author)

Conference:

Pipeline Division Specialty Congress 2004 ; 2004 ; San Diego, California, United States

Published in:

Pipeline Engineering and Construction ; 1-10

Publication date:

2004-07-30

ISBN:

DOI:

https://doi.org/10.1061/40745(146)30

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Coating , Inspection , Pipes , Acids , Installation , Rehabilitation , Prestressed concrete cylinder pipes , Public safety , Pipelines

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