Mechanical and durability properties of ECO-UHPCs incorporating industrial by-products

Tanvir Ahmed

doi:10.26182/7cw5-1239

Mechanical and durability properties of ECO-UHPCs incorporating industrial by-products

Tanvir Ahmed

Research output: Thesis › Doctoral Thesis

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Abstract

CO₂-footprints and costs of commercial UHPCs are high. Industrial by-products are hardly used in UHPCs. A key reason is the lack of knowledge on the mechanical and durability properties of UHPCs with by-products. In this thesis, the properties of UHPCs incorporating by-products, namely, slag (GGBS), fly ash (FA), and gold-mine tailings (GT), are investigated. UHPCs with up to 60% GGBS or FA, as cement-substitute, and UHPC with 100% GT, as sand-substitute, exhibit strength above 120MPa. Durability performances of UHPCs with by-products are comparable to or better than the durability of UHPC without by-products(except for UHPC with 70% FA).

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Elchalakani, Mohamed, Supervisor Karrech, Ali, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	8 Mar 2022
DOIs	https://doi.org/10.26182/7cw5-1239
Publication status	Unpublished - 2022

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10.26182/7cw5-1239

THESIS - DOCTOR OF PHILOSOPHY - AHMED, Tanvir - 2022
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Cite this

@phdthesis{dc0151e0b3d04b9d8576f7f1e49f9428,

title = "Mechanical and durability properties of ECO-UHPCs incorporating industrial by-products",

abstract = "CO2-footprints and costs of commercial UHPCs are high. Industrial by-products are hardly used in UHPCs. A key reason is the lack of knowledge on the mechanical and durability properties of UHPCs with by-products. In this thesis, the properties of UHPCs incorporating by-products, namely, slag (GGBS), fly ash (FA), and gold-mine tailings (GT), are investigated. UHPCs with up to 60% GGBS or FA, as cement-substitute, and UHPC with 100% GT, as sand-substitute, exhibit strength above 120MPa. Durability performances of UHPCs with by-products are comparable to or better than the durability of UHPC without by-products(except for UHPC with 70% FA).",

keywords = "CO2 emission, cost, fibre reinforced concrete, low-C3A cement, mine waste, supplementary cementitious materials, sustainability, ultra-high performance concrete",

author = "Tanvir Ahmed",

year = "2022",

doi = "10.26182/7cw5-1239",

language = "English",

school = "The University of Western Australia",

}

TY - BOOK

T1 - Mechanical and durability properties of ECO-UHPCs incorporating industrial by-products

AU - Ahmed, Tanvir

PY - 2022

Y1 - 2022

N2 - CO2-footprints and costs of commercial UHPCs are high. Industrial by-products are hardly used in UHPCs. A key reason is the lack of knowledge on the mechanical and durability properties of UHPCs with by-products. In this thesis, the properties of UHPCs incorporating by-products, namely, slag (GGBS), fly ash (FA), and gold-mine tailings (GT), are investigated. UHPCs with up to 60% GGBS or FA, as cement-substitute, and UHPC with 100% GT, as sand-substitute, exhibit strength above 120MPa. Durability performances of UHPCs with by-products are comparable to or better than the durability of UHPC without by-products(except for UHPC with 70% FA).

AB - CO2-footprints and costs of commercial UHPCs are high. Industrial by-products are hardly used in UHPCs. A key reason is the lack of knowledge on the mechanical and durability properties of UHPCs with by-products. In this thesis, the properties of UHPCs incorporating by-products, namely, slag (GGBS), fly ash (FA), and gold-mine tailings (GT), are investigated. UHPCs with up to 60% GGBS or FA, as cement-substitute, and UHPC with 100% GT, as sand-substitute, exhibit strength above 120MPa. Durability performances of UHPCs with by-products are comparable to or better than the durability of UHPC without by-products(except for UHPC with 70% FA).

KW - CO2 emission

KW - cost

KW - fibre reinforced concrete

KW - low-C3A cement

KW - mine waste

KW - supplementary cementitious materials

KW - sustainability

KW - ultra-high performance concrete

U2 - 10.26182/7cw5-1239

DO - 10.26182/7cw5-1239

M3 - Doctoral Thesis

ER -

Mechanical and durability properties of ECO-UHPCs incorporating industrial by-products

Abstract

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