Movement Control

Credit/Time: 1 hour

movement controlUnderstand the differential movement of clay and concrete masonry.  Discuss the different types of movement joints necessary in masonry.  Learn about the proper placement of movement joints in masonry wall systems.

Learning Objectives:

  1. Learn about the requirements for movement joints in both clay and concrete masonry wall systems.
  2. Learn about the different types of movement joints used in masonry.
  3. Learn how to control movement when using dissimilar materials in a banding pattern.
  4. Examples will be reviewed to show where movement joints are needed and how to locate them on masonry projects.

 

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Resources:

  1. NCMA TEK 10-03, 2003, Control Joints for Concrete Masonry Walls – Alternative Engineered Method
  2. NCMA TEK 10- 2C (2010) Control Joints for Concrete Masonry Walls – Empirical Method
  3. BIA 18A, 2006, Accommodating Expansion of Brickwork
  4. BIA Technical Note 18, 2006, Volume Changes – Analysis and Effects of Movement
  5. MIM, The Story Pole magazine, July/August 2007, Brick Expansion Joints and Wall Openings
  6. Article from Masonry Construction magazine, Detailing to Accommodate Vertical Expansion
  7. Example from MDG 4, RCJ-05
  8. ASTM Special Technical Publication, STP 992 (1988), Masonry Cracks: A Review of the Literature