Precision Statements For Aashto Standard Methods Of Test T 148 T 265 T 267 And T 283

"This digest summarizes key findings obtained in 2009 and 2010 from continuing NCHRP Project 9-26A, "Data Mining and Interlaboratory Studies to Prepare Precision Statements for AASHTO Standard Test Methods." Project 9-26A was conducted by the AASHTO Materials Reference Laboratory under the direction of the principal investigator, Haleh Azari. This digest is based on the contractor's task reports, which are available online as NCHRP Web-Only Documents 163 through 166."

This work gives an overview of significant research from recent years concerning performance-based design and quality control for concrete durability and its implementation. In engineering practice, performance approaches are often still used in combination with prescriptive requirements. This is largely because, for most durability test methods, sufficient practical experience still has to be gained before engineers and owners are prepared to fully rely on them. This book, compiled by RILEM TC 230-PSC, is intended to assist efforts to successfully build the foundation for the full implementation of performance-based approaches through the exchange of relevant knowledge and experience between researchers and practitioners worldwide.