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020 ▼a 9780438284128
035 ▼a (MiAaPQ)AAI10969896
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0820 ▼a 624
1001 ▼a Safavi Zadeh, Seyed Shahin.
24510 ▼a Evaluating the Effect of MICP Treatment on the Structural and Chemical Stabilization of Coal Ash Impoundments.
260 ▼a [S.l.] : ▼b North Carolina State University., ▼c 2018
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2018
300 ▼a 208 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
500 ▼a Advisers: Brina M. Montoya
5021 ▼a Thesis (Ph.D.)--North Carolina State University, 2018.
520 ▼a Coal ash is a by-product of coal combustion process in power plants. A significant portion of the generated coal ash is disposed of in impoundments and landfills. Gradual deposition of coal ash can induce excessive shear stresses and lead to int
520 ▼a Factors affecting the kinetics and chemistry of MICP reactions are studied using chemical equilibrium modeling and experimental batch testing. A column testing program was performed to optimize MICP treatment recipes and to develop MICP treatmen
520 ▼a Monitoring the shear wave velocity of the MICP treated specimens of the studied coal ash materials showed three different responses, while treated identically. Two of the studied ash materials exhibited significant improvement in stiffness durin
520 ▼a The large-strain results in modified consolidation setup demonstrated a reduction in compressibility (CC and mv) for treated coal ash in comparison to untreated material. This reduction was more at lower levels of applied vertical stresses. The
520 ▼a Lastly, based on the combined results of adsorption/ desorption chemical equilibrium and batch testing, a backbone curve which correlated the arsenic solubility to pH of the solution was proposed. Comparing the backbone curve and leaching result
590 ▼a School code: 0155.
650 4 ▼a Civil engineering.
650 4 ▼a Environmental engineering.
690 ▼a 0543
690 ▼a 0775
71020 ▼a North Carolina State University.
7730 ▼t Dissertation Abstracts International ▼g 79-12B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0155
791 ▼a Ph.D.
792 ▼a 2018
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15001296 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자