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Technical bulletin on design and construction of crack attenuating mixes (CAM).
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2010-02-01
[PDF-182.00 KB]
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Abstract:The crack attenuating mix (CAM) is proposed as a thin, long-lasting, cost effective surface mix
for pavement maintenance and preservation. Developed under TxDOT research study 0-5598,
this very fine mix is designed to pass both the current Hamburg wheel test (HWTT) to ensure
moisture susceptibility and good rut resistance and strict overlay tester (OT) requirements to
ensure good crack resistance. It is typically placed as a 1-inch thick mat. This mix has been
evaluated in several districts around Texas, and the performance to date has been very good.
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