Effects of using aqueous graphene on behavior and mechanical performance of cementbased composites

Tien-Dung  Nguyen; Meini Su; Michael Watson; Yong Wang

doi:10.1016/j.conbuildmat.2023.130466

Effects of using aqueous graphene on behavior and mechanical performance of cementbased composites

Tien-Dung Nguyen
, Meini Su
, Michael Watson
, Yong Wang

Research output: Contribution to journal › Article › peer-review

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Abstract

This paper presents the results of an investigation into aqueous graphene (AG) in Portland cement (PC) mortars for the first time. The investigation found that AG can be used to replace powdered pristine graphene nanoplatelets (PG) in PC mortar because AG has fewer agglomerates than PG. Thus, AG not only has lower manufacturing and carbon costs compared to PG, it is also shown to outperform PG in improving the compressive strength of PC. Using AG increases cement gel nucleation seeding and prolongs PC hydration thereby improving the content and morphology of the hydration products with the resulting compressive strength of AG mortar samples being about 13% higher than PG mortar samples (70 vs 62 MPa).

Original language	English
Article number	130466
Journal	Construction and Building Materials
Volume	368
Early online date	26 Jan 2023
DOIs	https://doi.org/10.1016/j.conbuildmat.2023.130466
Publication status	Published - 2 Mar 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

graphene
agglomeration
dispersion
nucleation seeding
compressive strength

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10.1016/j.conbuildmat.2023.130466

AAMAccepted author manuscript, 1.79 MBLicence: CC BY

DualFRCM: Dual-functional graphene-modified carbon-fibre reinforced cementitious matrix (FRCM) composite for simultaneous corrosion protection and structural
Su, M. (PI)
1/10/20 → 31/03/23
Project: Research

Cite this

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title = "Effects of using aqueous graphene on behavior and mechanical performance of cementbased composites",

abstract = "This paper presents the results of an investigation into aqueous graphene (AG) in Portland cement (PC) mortars for the first time. The investigation found that AG can be used to replace powdered pristine graphene nanoplatelets (PG) in PC mortar because AG has fewer agglomerates than PG. Thus, AG not only has lower manufacturing and carbon costs compared to PG, it is also shown to outperform PG in improving the compressive strength of PC. Using AG increases cement gel nucleation seeding and prolongs PC hydration thereby improving the content and morphology of the hydration products with the resulting compressive strength of AG mortar samples being about 13\% higher than PG mortar samples (70 vs 62 MPa).",

keywords = "graphene, agglomeration, dispersion, nucleation seeding, compressive strength",

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doi = "10.1016/j.conbuildmat.2023.130466",

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T1 - Effects of using aqueous graphene on behavior and mechanical performance of cementbased composites

AU - Nguyen, Tien-Dung

AU - Su, Meini

AU - Watson, Michael

AU - Wang, Yong

PY - 2023/3/2

Y1 - 2023/3/2

N2 - This paper presents the results of an investigation into aqueous graphene (AG) in Portland cement (PC) mortars for the first time. The investigation found that AG can be used to replace powdered pristine graphene nanoplatelets (PG) in PC mortar because AG has fewer agglomerates than PG. Thus, AG not only has lower manufacturing and carbon costs compared to PG, it is also shown to outperform PG in improving the compressive strength of PC. Using AG increases cement gel nucleation seeding and prolongs PC hydration thereby improving the content and morphology of the hydration products with the resulting compressive strength of AG mortar samples being about 13% higher than PG mortar samples (70 vs 62 MPa).

AB - This paper presents the results of an investigation into aqueous graphene (AG) in Portland cement (PC) mortars for the first time. The investigation found that AG can be used to replace powdered pristine graphene nanoplatelets (PG) in PC mortar because AG has fewer agglomerates than PG. Thus, AG not only has lower manufacturing and carbon costs compared to PG, it is also shown to outperform PG in improving the compressive strength of PC. Using AG increases cement gel nucleation seeding and prolongs PC hydration thereby improving the content and morphology of the hydration products with the resulting compressive strength of AG mortar samples being about 13% higher than PG mortar samples (70 vs 62 MPa).

KW - graphene

KW - agglomeration

KW - dispersion

KW - nucleation seeding

KW - compressive strength

U2 - 10.1016/j.conbuildmat.2023.130466

DO - 10.1016/j.conbuildmat.2023.130466

M3 - Article

SN - 0950-0618

VL - 368

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 130466

ER -

Effects of using aqueous graphene on behavior and mechanical performance of cementbased composites

Abstract

UN SDGs

Keywords

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Projects

DualFRCM: Dual-functional graphene-modified carbon-fibre reinforced cementitious matrix (FRCM) composite for simultaneous corrosion protection and structural

Cite this