Category:1027 Polymer-Coated Corrugated Metal Culvert Pipe and Pipe-Arches
From Engineering Policy Guide
|Approved and Pre-Qualified List|
|QC/QA Polymer-Coated Corrugated Metal Culvert Pipe|
|Current General Services Specifications (MGS) By Subject|
This article establishes procedures for inspecting, acceptance and reporting of polymer-coated corrugated metal culvert pipe and pipe arches. Refer to Sec 1027 for MoDOT’s specifications.
For Laboratory testing and sample reporting procedures, refer to EPG 1027.4 Laboratory Testing Guidelines for Sec 1027.
(a) Magnetic or electronic gauge, reading range 0-40 mils (0-1000 μm).
(b) Micrometer capable of measuring to 0.0001 in. (0.00254 mm) and accurate to within at least 0.001 in. (0.0254 mm).
(c) Rule with suitable gradations to accurately measure the material to be inspected.
1027.2.1 Polymer-Coated Corrugated Metal Culvert Pipe and Pipe-Arches
Polymer-coated corrugated metal culvert pipe and pipe arch is to be accepted in accordance with Sec 1027.2.
1027.2.3 Identification Markings
Pipe is to be marked in as described in 1020.2.3 Identification Markings for Steel Sheet.
1027.2.4 Random Sampling
Random samples are to be taken in as described in EPG 1020.2.4 Random Sampling of Steel Sheet. Random samples of polymer coating are to be taken as described in AASHTO M 245.
Samples for determination of coating thickness may be taken from fabricated pipe.
1027.2.5 Field Inspection
Field inspection shall be performed in accordance with and at the frequency specified in EPG 1020.2.5 Field Inspection.
Fabrication of polymer coated corrugated metal culvert pipe and pipe-arch shall be in accordance with Sec 1020 and AASHTO M 245.
1027.2.7 Repair of Damaged Coating
Units on which the metallic coating has been damaged shall be repaired as described in EPG 1020.2.7.2 Repair of Damaged Coating. Polymer coating shall be repaired as described in AASHTO M 245.
1027.3 Sample Record
Sample ID’s shall be assigned and sample records shall be created in accordance with 1020.3 Sample Record.
1027.4 Laboratory Testing Guidelines for Sec 1027
This article establishes procedures for Laboratory testing and reporting samples of nonreinforced concrete culvert, storm drain and sewer pipe.
Tests consist of absorption only. Samples shall be tested in accordance with AASHTO T280. Test results and calculations shall be recorded through SiteManager.
1027.4.2 Sample Record
The sample record shall be completed in SiteManager, as described in Automation Section, and shall indicate acceptance, qualified acceptance, or rejection. Appropriate remarks, as described in EPG 106.20 Reporting, are to be included in the sample record to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab.