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American Concrete Institute (ACI)
www.aci-int.org
American Concrete Pavement Association (ACPA)
www.pavement.com
American Concrete Pumping Association
www.concretepumping.com/p>
American Society for Testing & Materials (ASTM)
www.astm.org
Concrete Reinforcing Steel Institute
www.crsi.org
Insulating Concrete Form Association (ICFA)
www.forms.org
International Concrete Repair Institute
www.icri.org
National Ready-Mixed Concrete Association (NRMCA)
www.nrmca.org
Portland Cement Association (PCA)
www.portcement.org
Tilt-Up Concrete Association
www.tilt-up.org
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