Abstract
In Limestone Association of Japan, in order to make everyone correctly understand the properties of crushed limestone aggregate, Committee on Concrete Aggregate was established by the specialists in limestone resources and concrete materials in 2008. In our Committee, we stacked the test data on the properties of concrete with limestone aggregate and widely collected latest technology findings and data. Furthermore, we made an in-depth study on various issues. Since we summarized the results as “Limestone Aggregate and Concrete - Addendum (2012) ”, we will introduce here its main points.