OasisLMS

The objective of this course is to introduce and explain by case studies a new document, ACI 211-N “Guide to Proportioning Concrete Mixes with Ground Limestone and Mineral Fillers”. This main objective is to propose that a blended portland limestone cement (PLC) with supplementary cementitious material (SCM) cement blend can provide an effective synergy to produce a comparable concrete to a portland cement. This course will provide studies that show different ways that PLC and SCM concretes can attain adequate compressive strength and durability to be used in many concrete applications.

The contents of this course include three recorded presentations from the ACI 2015 Fall Convention in Denver, CO.

• Fine Limestone Additions to Improve the Performance of (High Volume Fly Ash) Concretes by Dale Bentz
• Utilzation of Crushed Stone Mineral Filler (Microfines) in Ready Mixed Concrete by Teck L. Chua
• Sulfate Resistance of Concrete Produced with Portland-Limestone Cements (PLC) and Supplementary Cementitious Materials by R. Doug Hooton

1. Explain sustainability opportunities by replacing portions of portland cement with ground limestone and mineral filler in concrete mixtures.
2. Describe properties of concrete produced with ground limestone, mineral filler, when added to blended portland cement with supplementary cementitious materials, such as fly ash, slag, metakaolin, and silica fume.
3. Develop and evaluate mixture proportions incorporating ground limestone or mineral filler materials to achieve usable concrete strength.
4. Describe the durability properties of concrete with regards to sulfate attack and thaumasite sulfate attack concrete produced with ground limestone or mineral filler added to either portland cement or blended portland cement with an SCM.

Study the materials included in this module, then Complete 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (1.0 PDH).
Continuing Education Credit: 0.1 CEU (1.0 PDH)
Access Period: 30 days
Approved AIA and ICC