TD News, Number 1, 2008 - Internet Web Site: ''

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Tests Prove Chloride Materials Stabilize Surface Aggregate

Image of the cover to the Surface-Aggregate Stabilization with Chloride Materials publication.The report "Surface-Aggregate Stabilization with Chloride Materials" (0677–1805P–SDTDC) describes the effectiveness of applying high concentrations (1.5 or 2 percent) of magnesium chloride and calcium chloride on aggregate-surfaced roads at 12 demonstration projects in 4 Western States. The chlorides were mixed with the top 2 inches of the crushed aggregate surfacing and were monitored for two seasons. The testing showed significant reductions in dusting, raveling, and washboarding in the stabilized sections.

For additional information, contact Alan Yamada, engineering program leader (phone: 909–599–1267 ext. 224; e-mail:

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