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Jarron Mihoci MS Thesis FINAL.pdf (5.49 MB)

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Investigation of Agricultural Biomass Ashes as Supplementary Cementitious Materials

Mihoci, Jarron M
http://orcid.org/0009-0008-5561-1585
http://rave.ohiolink.edu/etdc/view?acc_num=osu1681487416508847

Abstract Details

2023, Master of Science, Ohio State University, Civil Engineering.
The objective of this study is to analyze the effects of using agricultural biomass ash as a sustainable supplementary cementitious material. The potential for these waste materials to be used effectively in cementitious systems would promote global sustainability in both agriculture and construction. Three agricultural materials are explored in this study: hemp hurd, corn stover, and wheat straw. Corn stover and wheat straw have historically strong markets in the Midwest, and can generate significant waste. Hemp farming is a newer and strictly regulated enterprise in the United States, but the market has potential for growth due to the material’s versatility. The chemical variability of each of these materials are contrasted among three sources mostly across the Midwest United States. The results can be assessed to inform future building code recommendations for alternative supplementary cementitious materials. The practicality of using these materials in cementitious systems is explored in this study by assessing the reactivity and performance of agricultural ashes at 10% and 20% replacement of ash for cement volume. The results of this study indicate that wheat straw ash and corn stover ash make naturally good pozzolans, assessed by their reactivity and contribution to improved long term hardened properties. These materials are viable for up to 20% volumetric replacement of cement for durability improvements, and up to 10% volumetric replacement for benefits to compressive strength. Hemp hurd ash showed lower reactivity in its natural state and did not perform like a traditional SCM. However, many chemical treatment techniques can be applied to optimize the properties of these materials by removing impurities, standardizing ash chemistry, and thereby improving the ash performance in cementitious systems. Additionally, variability in material chemistry and performance is significant in some results including reactivity.
Lisa Burris (Advisor)
Anthony Massari (Committee Member)
Halil Sezen (Committee Member)
168 p.
Civil Engineering; Sustainability
cement, SCM, corn stover, wheat straw, hemp hurd, pozzolan, reactivity

Recommended Citations

Citations

  • Mihoci, J. M. (2023). Investigation of Agricultural Biomass Ashes as Supplementary Cementitious Materials [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1681487416508847

    APA Style (7th edition)

  • Mihoci, Jarron. Investigation of Agricultural Biomass Ashes as Supplementary Cementitious Materials. 2023. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1681487416508847.

    MLA Style (8th edition)

  • Mihoci, Jarron. "Investigation of Agricultural Biomass Ashes as Supplementary Cementitious Materials." Master's thesis, Ohio State University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=osu1681487416508847

    Chicago Manual of Style (17th edition)

osu1681487416508847
74
© 2023, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.