Research

Project Title: Hoop Tensile Test Industry Part ner: PSI Lab CIEST Personnel Participants : John Hindman Year: 2022 Project Summary: The CIEST Laboratory successfully completed testing pipe liner samples for “apparent hoop tensile strength” as described in ASTM D2290. The method uses a split disk to apply tensile forces to...

Project Title: Testing and Analysis of Pipeline Encapsulation Technologies Funding Agency: DOE/ARPA-E: Rapid Encapsulation of Pipelines Avoiding Intensive Replacement (REPAIR) Lead: University of Colorado Boulder Partners: Gas Technology Institute, Cornell University, University of Southern Queensland Industry Partners: Sanexen Environmental Services Inc. CIEST Personnel : Patrick Dixon, William Flood, John Hindman,...

Full Project Title: Axial Capacity of C900 PVC Pipe with Reinforced Gasketed Joints Year: 2019-20 Industry Partner: Denver Water CIEST Personnel : Jessica Ramos, John Hindman, Brice Lucero, David Ballcells, Hayley Parnell, and Porter Hawkins Primary Investigator : Prof. Brad Wham Summary: The objective of this study was to impose...

Full Title: Year: 2017-21 Participants: Mohammad Matar, Shane Frazier, Jorge Osio-Norgaard, Anastasia Aday, Nathan Deanda, El Delesky Primary Investigator: Wil Srubar III Summary: In this study the effects of biomimetic antifreeze polymers were investigated for their use as an alternative to traditional air entraining agents in concrete exposed to freeze-thaw...

The primary objective of this Extremely Durable Cementitious Materials project is to engineer an ultra-acid-resistant low-calcium alkali-activated (geopolymer) cement paste specifically for wastewater infrastructure applications.

The objective of this project is to engineer living materials to serve both biological and structural functions.

The first in a series of testing programs at CU Boulder CIEST investigating performance of critical lifeline systems under extreme loading conditions.

Project included development of a bi-directional loading system to apply simultaneous axial and lateral loading to 6 in. diameter columns and splice connections. Nearly 60 full-scale tests were conducted to support evaluation of a new structural building system for seismic applications. Accredited testing performed to ISO/IEC 17025 standard following protocols provided by FEMA 461.

In summer 2019, former masters student David Kyle Anderson conducted 28 tension tests on 5 different types of wire mesh used for soil stabilization at CIEST.

Utilizing experience with silty-sand gained during her PhD, April intends to focus on how to use silty-sands in the centrifuge to produce accountable results to predict the influence of this material on liquefaction; hopefully leading to incorporation into performance-based design.