Join us for a presentation and discussion of the perils of ready-mix concrete and the state of practice. We will also discuss self-consolidating concrete, the advantages and disadvantages as well as new-age additives and what works best when.
This program will qualify for AIA/AICP Continuing Education Credits.
Carl “Chuck” J. Larosche, PE, F.ACI (Host/Moderator)
With over thirty years of experience, Chuck is an industry leader in the fields of preservation and restoration of historic and existing structures, structural design, and investigation and evaluation of existing structures and materials; however, Chuck is equally well known for his contributions to the field of engineering and mentoring young engineers as he is for his engineering capabilities.
His diverse background includes structural design, investigation, and evaluation of existing structures and materials. He has successfully combined his broad construction background with his knowledge of material behavior in existing structures to provide rare insight and knowledge in the area of conventional reinforced concrete, pre-cast and post-tensioned concrete, masonry, and steel evaluation, including strengthening and repair of these materials.
To say concrete is a strong suit for Chuck would be an understatement. He is actively involved in several professional organizations, including various committees of the American Concrete Institute (ACI). Chuck was elected as an ACI Fellow in 2016, most recently being nominated to ACI’s Technical Activities Committee (TAC). He is the Chair of ACI 437, Strength Evaluation of Existing Concrete Structures, Secretary of ACI E702, Designing Concrete Structures, Secretary of ACI349/359, Concrete Nuclear Structures and Concrete Components for Nuclear Reactors, and Sub-committee Chair of ACI 562, Evaluation, Repair, and Rehabilitation of Concrete Buildings. He authored several publications including Inspection, Testing, and Monitoring of Buildings and Bridges and Failure, Distress and Repair of Concrete Structures.
Jeff West, PhD, PE, F.ACI (Presenter)
“Advancements in Concrete Technology”
Before becoming a full time Associate Principal at WJE in 2017, Jeff West was an Affiliated Consultant since 2016. He has more than twenty years of experience in structural engineering and materials research and consulting. His primary areas of expertise include the evaluation and strengthening of existing structures, structural testing, durability of concrete structures, post-tensioned structures, concrete materials, and the investigation and analysis of structural collapses. Dr. West has extensive project experience with buildings, bridges, parking structures, maritime structures, concrete tanks, and flood control channels throughout the US.
Prior to joining WJE, Dr. West was a professor of civil engineering at the University of Waterloo (Canada) for 15 years. His research interests include modular systems and connections for steel-concrete composite bridges, concrete materials (fibre-reinforced concrete, use of recycled materials), the assessment, repair and rehabilitation of existing structures (concrete and wood), the use of fibre-reinforced polymers as reinforcement, tolerance theory for modular construction, and the use of laser scanning and other technologies for tolerance measurement and progress tracking in construction.
Dr. West has more than 80 technical publications in peer-reviewed journals and conferences and has delivered lectures at numerous technical conferences, design seminars, and training programs. He is a fellow of the American Concrete Institute (ACI), a past Chair of Committee 224 (Cracking), past Secretary of Committee 437 (Strength Evaluation of Existing Structures), and a member of Committees 130 (Sustainability) and 222 (Corrosion).
Jacob Borgerson, PhD, PE (Presenter)
“Perils of Ready-Mix Concrete: Realities of Batching, Mixing, Transport, Placement, and Testing”
Jacob Borgerson joined WJE in 2017. He leads and performs forensic investigations on the failure, distress, and damage of concrete caused by corrosion, fire, atmospheric, and other conditions. Dr. Borgerson has evaluated concrete problems concerning low strength, cracking, and finishing-related defects. He has prepared thermal control plans for mass concrete placements and has also assessed numerous concrete slabs for moisture-related distress of floor coverings. In addition to his concrete consulting, Dr. Borgerson is experienced in utilizing a variety of nondestructive evaluation (NDE) methods (e.g., impact-echo, ultrasonic pulse velocity, ground-penetrating radar, CAPOtesting) to assess building materials and civil infrastructure.
Prior to joining WJE, Dr. Borgerson received his PhD from the University of Illinois at Urbana-Champaign. He brings an in-depth knowledge of concrete materials related to construction, testing, evaluation, and repair. Dr. Borgerson’s extensive experience also involves consulting services provided to contractors, structural engineers, architects, ready-mix suppliers, owners, and developers. He is an active member of the American Concrete Institute (ACI), International Concrete Repair Institute (ICRI), and Structural Engineers Association of Texas (SEAoT). In addition, he serves on ACI Committees 228, Nondestructive Testing of Concrete, and 117, Tolerances for Concrete Construction. He is a licensed professional engineer in multiple states including Texas.