Line 13:
Line 13:
Standard specifications for the gradation of aggregates are maintained by ASTM [https://www.astm.org/Standards/D2940.htm D2940
Standard specifications for the gradation of aggregates are maintained by ASTM [https://www.astm.org/Standards/D2940.htm D2940
+
See [[jar test]] for on-site verification testing protocols.
----
----
[[category:materials]]
[[category:materials]]