Wednesday, February 29, 2012
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TxDOT Releases Proposed Asphalt Pavement Specifications for TXAPA Review

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On Feb. 1, 2012 Darren Hazlett, Assistant Section Director of the TxDOT Material and Pavements Section of the Construction Division, transmitted TxDOT’s proposed asphalt pavement special specifications to Harold Mullen, TXAPA Executive Vice President, for review and comment by TXAPA and TXAPA members. These special specifications will replace asphalt pavement specification items from the 2004 TxDOT specification book and their associated special provisions. In particular these special specifications are intended to replace:

•    Item 340 Dense-Graded Hot-Mix Asphalt (Method)
•    Item 341 (Special Specification 3224) Dense-Graded Hot-Mix Asphalt (QC/QA)
•    Item 342 Permeable Friction Course (PFC)
•    Item 344 Performance-Designed Mixtures
•    Item 346 Stone-Matrix Asphalt

These special specifications will include many of the changes initially made in Special Specification 3224 as well as additional changes that are specific to each item. Due to the significant amount of changes TxDOT also provided a summary of the changes for each specification and a document that will help expedite the review process.

Comments are due back to TxDOT by March 15, 2012. Kyle Swaner, TXAPA Vice President of Technical Programs, will be working with TXAPA’s Specification Committee and will be coordinating TXAPA’s response. If you have any comments that you wish to provide on these proposed special specifications please give Kyle Swaner a call at (512) 312-2099 or send him an email at kswaner@texasasphalt.org. 

To review or to get a copy of these special specifications you can go to either the Texas Asphalt Pavement Association website or the Hot Mix Asphalt Center Website. The direct links to the proposed special specifications on these two websites are as follows:

http://texasasphalt.org/txdot-draft-asphalt-pavement-special

http://www.txhmac.org/wp-content/uploads/Proposed%20Special%20Specifications%2002-06-12.pdf  
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