Microsurfacing (2010) / Chapter Skim
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Pages 64-66
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From page 64... ...
agencies use it primarily as a surface course, they are not maximizing the potential benefits of microsurfacing when they do not use it as the primary tool to fill ruts as their Canadian counterparts do. • Most agencies only use a single microsurfacing emulsion, and all agencies rated their microsurfacing performance as satisfactory.
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From page 65... ...
3. The microsurfacing binder amount can be reduced by 1% to 2% in rut filling and scratch courses upon which a wearing course will be applied.
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From page 66... ...
The suggested research would evaluate the current programs used in those and other countries, such as the United Kingdom, South Africa, Portugal, and Spain, and develop a set of key performance measures that could be used in microsurfacing projects being procured on a performance basis. • The lack of rigorous field tests based on a rational quantification of measurable microsurfacing properties leads to a suggestion for research to develop a series of field tests that allow an inspector to test the microsurfacing mix after it has been laid, as well as tests to identify when the mix has cured to a sufficient degree to open it to traffic without fear of damaging it.
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