Demonstration Project for Implementation of Performance Enhanced Mixtures (PEM) - MLR-19-10/TPF-5(368)

(2019) Demonstration Project for Implementation of Performance Enhanced Mixtures (PEM) - MLR-19-10/TPF-5(368). Transportation, Department of

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Demo Proj Implementation MLR-19-01.pdf

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Concrete has traditionally been accepted by testing air, slump, and strength. However, these test methods usually do not have a direct relationship with long term durability. A number of new test methods have been developed that give a better prediction of long-term performance. On a recent paving project on US 20 in Woodbury County, Iowa, several of the new test methods were evaluated to gain experience with the test methods and determine viability of using test methods for quality control and acceptance. The contractor performed quality control (QC) shadow testing using the SAM air meter test for air and freeze thaw potential, box test for workability, and resistivity testing for fluid transport properties. The Federal Highway Administration (FHWA) Mobile Concrete Laboratory was also on the project collecting data for the PEM pooled fund project. Results indicated the new test methods are repeatable and provide valuable information on long term performance potential for concrete pavements.

Item Type: Departmental Report
Keywords: PEM, performance engineered mixtures, SAM Number, resistivity, concrete pavement, calcium oxychloride potential, AASHTO PP-84
Subjects: Transportation
Transportation > Materials
Transportation > Maintenance and preservation
ID Code: 33927
Deposited By: Iowa DOT Research
Deposited On: 05 Oct 2020 16:49
Last Modified: 05 Oct 2020 16:49

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