Ashkan Nafisi

Works (5)

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2021 article

Effect of stress path on the shear response of bio-cemented sands

Nafisi, A., Liu, Q., & Montoya, B. M. (2021, June 30). ACTA GEOTECHNICA.

By: A. Nafisi, Q. Liu & B. Montoya

author keywords: Bio-cementation; Cementation degradation; MICP; Nonlinear failure envelope; Shear response; Stress path
Source: Web Of Science
Added: July 12, 2021

2020 journal article

Shear Strength Envelopes of Biocemented Sands with Varying Particle Size and Cementation Level

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 146(3).

By: A. Nafisi, B. Montoya & T. Evans

author keywords: Microbial-induced calcium carbonate precipitation (MICP); Shear response; Shear wave velocity; Failure envelope
Source: Web Of Science
Added: June 1, 2020

2020 journal article

Tensile strength of sands treated with microbially induced carbonate precipitation

CANADIAN GEOTECHNICAL JOURNAL, 57(10), 1611–1616.

By: A. Nafisi, D. Mocelin, B. Montoya & S. Underwood  n

author keywords: bio-cementation; MICP; tensile strength; unconfined compressive strength (UCS)
Source: Web Of Science
Added: October 26, 2020

2019 journal article

Influence of Microbe and Enzyme-Induced Treatments on Cemented Sand Shear Response

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 145(9).

By: A. Nafisi, S. Safavizadeh  n & B. Montoya

author keywords: Bio-mediated techniques; Microbially induced <mml; math display="inline" overflow="scroll"><mml; mrow><mml; msub><mml; mi>CaCO</mml; mi><mml; mn>3</mml; mn></mml; msub></mml; mrow></mml; math> precipitation (MICP); Enzyme induced <mml; math display="inline" overflow="scroll"><mml; mrow><mml; msub><mml; mi>CaCO</mml; mi><mml; mn>3</mml; mn></mml; msub></mml; mrow></mml; math> precipitation (EICP); Macro; and microscale comparison
Source: Web Of Science
Added: August 5, 2019

2018 conference paper

A new framework for identifying cementation level of MICP-treated sands

Ifcee 2018: innovations in ground improvement for soils, pavements, and subgrades, (296), 37–47.

By: A. Nafisi & B. Montoya

Source: NC State University Libraries
Added: August 6, 2018