TxDOT Change Memos Effective July 2024
DMS-9203, “Rapid Curing Asphaltic Concrete Patching Material (Containerized),”
- This DMS is being discontinued. The DMS-9203 material is no longer being made or purchased.
- TxDOT DMS-9202 covers the same uses, and allows workability in colder temps.
Tex-105-E, “Determining Plastic Limit of Soils,”
The primary revisions to the test procedure are:
- no procedural changes,
- title change to Plastic Limit of Soils and Base Materia,
- editorial,
- clarification of language, and
- added review date to the footer.
Tex-108-E, “Determining the Specific Gravity of Soils”
The primary revisions to the test procedure are:
- deleted the procedure,
- refers to AASHTO T 100,
- title change to “Specific Gravity of Soils,” and
- added review date to the footer.
Tex-112-E, “Admixing Lime to Reduce Plasticity Index of Soils,”
The primary revisions to the test procedure are:
- no procedural changes,
- editorial,
- clarification of language, and
- added review date to the footer.
Tex-128-E, “Determining Soil pH”
The primary revisions to the test procedure are:
- separated standardization from procedure into new section,
- removed the requirement for heating the sample,
- explicit language added to stirring so a mechanical stirring device is allowed,
- title change to PH Testing of Soils and Retaining Wall Backfill,
- clarification and editorial of text, and added review date to the footer.
Tex-129-E, “Resistivity of Soil Materials”
The primary revisions to the test procedure are:
- moved language for material sampling and preparation into a new, separate section,
- change language from verification to calibration of resistivity meter,
- changed frequency of calibration from each series of tests to before the start of testing for each day, allows the material to be gently tapped with fingertips in addition to a light object,
- title change to Resistivity of Retaining Wall Backfill Material,
- clarification and editorial revisions of procedure, and
- added review date to the footer.
Tex-140-E, “Measuring Thickness of Pavement Layer”
The primary revisions to the test procedure are:
- no procedural changes,
- reference phenolphthalein in apparatus,
- added decimal equivalent to fractions of 1/8″ increments such as what is measured in the field and used for SiteManager template calculations,
- title change to Measuring Depth of Compacted Base and Treated Materials,
- clarification and editorial of language in procedure, and
- added review date to the footer.
Tex-225-F, “Random Selection of Bituminous Mixture Samples,”
The primary revisions to the test procedure are:
- added review date to the footer, and
- no changes to language.
Tex-233-F, “Preparing Control Charts for Bituminous Mixture Paving Projects,”
The primary revisions to the test procedure are:
- added review date to the footer, and
- no changes to language.
Tex-239-F, “Asphalt Release Agents,”
The primary revisions to the test procedure are:
- added review date to the footer, and
- no changes to language.