EXPERTISE // PEOPLE

Leo W. Zegler

Senior Specialist

 
Experience

Leo Zegler has extensive experience in testing and evaluating a vast variety of construction materials, including but not limited to concrete, aggregates, stone, mortar, masonry, stucco, clay tile, and grout. Most of his experience is in concrete and aggregate testing, which includes the following tests: concrete drying shrinkage, concrete compressive strength, concrete flexural strength, concrete freeze/thaw testing, concrete splitting tensile strength, concrete modulus of elasticity, plastic concrete testing, aggregate gradations, aggregate absorptions and specific gravity, and aggregate sample preparations. Mr. Zegler is also responsible for testing concrete and aggregate proficiency sample testing for the Cement and Concrete Reference Laboratory (CCRL) and the AASHTO (AMRL).

Mr. Zegler is also experienced in mortar masonry, historic masonry durability testing, and evaluation. He also has expertise in chloride permeability testing. He helps perform equipment calibrations and verifications to maintain laboratory accreditation.

REPRESENTATIVE PROJECTS

Laboratory Testing

  • Ford Island Bridge - HI: Alkali-silica reactivity testing
  • Trial batching and concrete testing for Self-Consolidating Concrete; admixture development
  • Wacker Drive Bridge Reconstruction - Chicago, IL: Concrete testing of high- performance concrete

 

Field Testing

  • Brookfield Zoo - Brookfield, IL: Condition assessment of pool
  • Shedd Aquarium - Chicago, IL: Condition assessment of pool
Education

William Rainey Harper College
Associate of Arts, 1997