ACI 423.9M-10 PDF Download

ACI 423.9M-10 is a standard that provides guidelines and requirements for the testing of the bleed stability of cementitious post-tensioning tendon grout. The standard focuses on the materials criteria and fabrication requirements for unbonded single-strand tendons in both nonaggressive and aggressive environments. It does not cover nonstructural elements or applications such as topping slabs or waterproofing slabs-on-fill.

The purpose of this standard is to ensure that the post-tensioning tendon grout remains stable and does not exhibit excessive bleeding over time. Bleed stability is an important characteristic of cementitious grout as excessive bleeding can lead to reduced grout quality and can affect the performance of the post-tensioning system.