Browsing by Author "Delatte, Norb"
Now showing items 1-7 of 7
-
Comparing concrete performance using conventional and alternative coal ash
Boyd, Braden (2022-07)Fly ash is widely used as a supplementary cementitious material in concrete as it can contribute to strength gain and increased durability of the concrete. The coal ash production volume has decreased in recent years due ... -
Comparing the variability of sample consolidation methods on low workability concrete
Finnell, Mark William (2020-05)Quality control and assurance testing for concrete provides quantitative information about the quality of the concrete being placed. Yet, improperly consolidating the fresh concrete sample can negatively affect the testing ... -
Field investigation of pumping air entrained concrete and validation of the SAM test on lightweight aggregate concrete mixtures
Staffileno, Chad Jordan (2020-05)The use of a pump to transport concrete is one of the most common and widely accepted methods to distribute and place concrete. An air-entraining admixture can be added to fresh concrete to prevent freeze-thaw durability ... -
Investigation of ion diffusion in cementitious materials with x-ray imaging techniques
Behravan, Amir (2020-07)Concrete is susceptible to the migration of highly deleterious ions. The external penetration of ions into cementitious materials is the primary factor influencing the longterm durability of concrete structures. There are ... -
Performance based testing for air entrainment and total heat of reclaimed fly ash
Emerson, Loren (2021-07)As coal combustion energy plants are being converted to natural gas, the tons of fly ash produced in the United States has dramatically decreased. The current demand in fly ash supply can be mitigated with the introduction ... -
Proportioning manufactured sand in flowable concrete
Alturki, Riyadh Turki M. (2020-12)Manufactured sand has started to be used in concrete due to its availability and low cost. However, it has different shape properties, gradations, and mineralogy in comparison to the natural sand, and these differences can ... -
Use of fibers to improve the performance of concrete
Dickey, Michael (2021-05)This work creates a simple test method to determine the effectiveness of macro synthetic fibers and steel fibers inside concrete by analyzing data from laboratory mixtures with a series of different fiber types and dosages. ...