Title:
Concrete Q & A: Using Portland-Limestone Cement in Concrete Repair
Author(s):
Publication:
Concrete International
Volume:
45
Issue:
4
Appears on pages(s):
71-72
Keywords:
material, service, corrosion, durability
DOI:
10.14359/51738735
Date:
4/1/2023
Abstract:
Achieving the designed service life of a repair depends on several factors including the material selection. This month’s Q&A discusses using portland-limestone cement instead of specified portland cement to repair concrete severely damaged by freezing-and-thawing cycles and corrosion due to exposure to deicing salts. The repair is expected to last at least 30 years.
Related References:
1. “PLC Availability,” Portland Cement Association, Skokie, IL, www.greenercement.com/plcavailability. (Accessed Mar. 14, 2023)
2. “Worldwide Acceptance,” Portland Cement Association, Skokie, IL, www.greenercement.com/acceptance. (Accessed Mar. 14, 2023)
3. ACI Committee 562, “Assessment, Repair, and Rehabilitation of Existing Concrete Structures - Code and Commentary (ACI CODE-562-21),” American Concrete Institute, Farmington Hills, MI, 2021, 88 pp.
4. ACI Committee 201, “Guide to Durable Concrete (ACI 201.2R-16),” American Concrete Institute, Farmington Hills, MI, 2016, 84 pp.
5. ACI Committee 546, “Guide to Materials Selection for Concrete Repair (ACI 546.3R-14),” American Concrete Institute, Farmington Hills, MI, 2014, 72 pp.
6. ICRI Guideline No. 320.2R-2018, “Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces,” International Concrete Repair Institute, St. Paul, MN, 2018, 44 pp.
7. ACI Committee 222, “Guide to Design and Construction Practices to Mitigate Corrosion of Reinforcement in Concrete Structures (ACI 222.3R-11),” American Concrete Institute, Farmington Hills, MI, 2011, 28 pp.
8. ACI Committee 365, “Report on Service Life Prediction (ACI 365.1R-17),” American Concrete Institute, Farmington Hills, MI, 2017, 56 pp.