Keywords: ASR cracks concrete step barrier FHWA 2006.jpg en Typical cracks pattern related to the alkali-silica-reaction in a concrete barrier step along the state highway 2 near Leominster MA USA From Figure 1 Extensive map cracking in several concrete barriers along State Highway 2 near Leominster MA In TechBrief Selecting Candidate Structures for Lithium Treatment What To Provide the Petrographer Along With Concrete Specimens Publication No FHWA-HRT-06-069 February 2006 From Figure 1 Extensive map cracking in several concrete barriers along State Highway 2 near Leominster MA In TechBrief Selecting Candidate Structures for Lithium Treatment What To Provide the Petrographer Along With Concrete Specimens Publication No FHWA-HRT-06-069 February 2006 http //www fhwa dot gov/pavement/pccp/pubs/06069/ US Department of Transportation “ Federal Highway Administration Dr P E Grattan-Bellew Publication No FHWA-HRT-06-069 2006-02-01 PD-USGov Cracks Jersey barriers Alkali silica reactions |