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Feasibility Study of Water Based / Polymer Modified EICP for Soil Improvement Involving Recycled Glass Aggregate

Pandey, Ganesh
http://rave.ohiolink.edu/etdc/view?acc_num=akron153115070027817

Abstract Details

2018, Master of Science, University of Akron, Civil Engineering.
Glass is one of the principal waste products generated in the US. The use of these glass cullet in the construction of shoulder section could reduce the quantity of waste glasses that goes to the landfill. Certain type of cementing agent is required to bind these glass particles in shoulder. Enzyme induced carbonate precipitation (EICP) has shown early promise as a viable and sustainable ground improvement method. Water based EICP leads to faster infiltration of cementation solution due to high permeability, thus limiting the amount of available reaction substances to produce CaCO3 precipitate at desired locations. This problem may be solved to some extent by the use of high viscosity polymer as a carrier of cementation solution in place of water. Laboratory tests performed on the recycled glass cullet showed the possibility of using them in the construction of shoulder section to prevent erosion. Moreover, a series of laboratory experiments performed showed that EICP worked well on the Ottawa sand but did not work well on recycled glass cullet. However, it was successful on the samples containing mixture of glass particles and Ottawa sand. The samples consisting up to 20% of recycled glass in the mixture were brittle and strong. The results of UCS testing showed the compressive strength of the intact sample decreases with increase in amount of recycled glass in the mixture. The pull out test carried out on the glass surface showed the possibility of application of EICP on the surface treated glass particles. SEM, XRD and TGA results on the samples treated with polymer modified EICP verify the presence of CaCO3 and the strength of the samples were tested at different moisture contents. The treated sand columns were organic-inorganic composites with sand cemented by a CaCO3-PVA mixture. Unlike low molecular weight PVA, medium molecular weight PVA forms complex matrix with the CaCO3 precipitate which does not dissolve in water at room temperature. The unconfined compression tests revealed that the strength and ductility of the soil columns treated with MMV PVA are moisture sensitive: the strength decreases but ductility increases with moisture content.
Junliang Tao, PhD (Advisor)
Zhe Luo, PhD (Committee Member)
Qixin Zhou, PhD (Committee Member)
82 p.
Civil Engineering
Shoulder Reconditioning; Shoulder Erosion; Recycled Glass Aggregates, EICP; Polymer modified EICP

Recommended Citations

Citations

  • Pandey, G. (2018). Feasibility Study of Water Based / Polymer Modified EICP for Soil Improvement Involving Recycled Glass Aggregate [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron153115070027817

    APA Style (7th edition)

  • Pandey, Ganesh. Feasibility Study of Water Based / Polymer Modified EICP for Soil Improvement Involving Recycled Glass Aggregate. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron153115070027817.

    MLA Style (8th edition)

  • Pandey, Ganesh. "Feasibility Study of Water Based / Polymer Modified EICP for Soil Improvement Involving Recycled Glass Aggregate." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron153115070027817

    Chicago Manual of Style (17th edition)

akron153115070027817
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