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  Construction Materials Research Center   The Construction Materials Research Center (CMRC) is a non-profit research association dedicated to the advancement of construction materials knowledge in Mississippi.
 
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  Mississippi Asphalt Pavement Association   The Mississippi Asphalt Pavement Association (MAPA) is a non-profit trade association representing the asphalt industry in Mississippi.
 
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  Mississippi Concrete Association   The Mississippi Concrete Association (MCA) is a non-profit trade association representing the concrete industry in Mississippi.