Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

M. Aly; M.S.J. Hashmi; A.G. Olabi; M. Messeiry; E.F. Abadir; A.I. Hussain

doi:10.1016/j.matdes.2011.07.008

Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

M. Aly, M.S.J. Hashmi, A.G. Olabi, M. Messeiry, E.F. Abadir, A.I. Hussain

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Abstract

This paper presents a laboratory study of the properties of colloidal nano-silica (CS)/waste glass cement composites. The microstructure, alkali–silica reaction (ASR), and the mechanical properties of cement mortars containing waste glass powder (WG) as a cement replacement with and without CS are investigated and compared with plain mortar. In addition, the hydration of cement compounds was followed by differential thermal analysis (DTA), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The results show that incorporation of WG has a positive effect on the mechanical properties of cement mortars especially when CS is presented. In addition, the DTA/TGA results and XRD analysis show a reduction in the calcium hydroxide (CH) content in mortars with both WG and a hybrid combination of WG and CS. This confirms the improvement of mechanical properties and the occurrence of the pozzolanic reaction after 28 days of hydration.

Original language	English
Pages (from-to)	127-135
Number of pages	9
Journal	Materials & Design
Volume	33
DOIs	https://doi.org/10.1016/j.matdes.2011.07.008
Publication status	Published - Jan 2012
Externally published	Yes

Keywords

Nano-materials
Concrete
Mechanical

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10.1016/j.matdes.2011.07.008

Cite this

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title = "Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar",

abstract = "This paper presents a laboratory study of the properties of colloidal nano-silica (CS)/waste glass cement composites. The microstructure, alkali–silica reaction (ASR), and the mechanical properties of cement mortars containing waste glass powder (WG) as a cement replacement with and without CS are investigated and compared with plain mortar. In addition, the hydration of cement compounds was followed by differential thermal analysis (DTA), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The results show that incorporation of WG has a positive effect on the mechanical properties of cement mortars especially when CS is presented. In addition, the DTA/TGA results and XRD analysis show a reduction in the calcium hydroxide (CH) content in mortars with both WG and a hybrid combination of WG and CS. This confirms the improvement of mechanical properties and the occurrence of the pozzolanic reaction after 28 days of hydration.",

keywords = "Nano-materials, Concrete, Mechanical",

author = "M. Aly and M.S.J. Hashmi and A.G. Olabi and M. Messeiry and E.F. Abadir and A.I. Hussain",

year = "2012",

month = jan,

doi = "10.1016/j.matdes.2011.07.008",

language = "English",

volume = "33",

pages = "127--135",

journal = "Materials & Design",

issn = "0261-3069",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

AU - Aly, M.

AU - Hashmi, M.S.J.

AU - Olabi, A.G.

AU - Messeiry, M.

AU - Abadir, E.F.

AU - Hussain, A.I.

PY - 2012/1

Y1 - 2012/1

N2 - This paper presents a laboratory study of the properties of colloidal nano-silica (CS)/waste glass cement composites. The microstructure, alkali–silica reaction (ASR), and the mechanical properties of cement mortars containing waste glass powder (WG) as a cement replacement with and without CS are investigated and compared with plain mortar. In addition, the hydration of cement compounds was followed by differential thermal analysis (DTA), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The results show that incorporation of WG has a positive effect on the mechanical properties of cement mortars especially when CS is presented. In addition, the DTA/TGA results and XRD analysis show a reduction in the calcium hydroxide (CH) content in mortars with both WG and a hybrid combination of WG and CS. This confirms the improvement of mechanical properties and the occurrence of the pozzolanic reaction after 28 days of hydration.

AB - This paper presents a laboratory study of the properties of colloidal nano-silica (CS)/waste glass cement composites. The microstructure, alkali–silica reaction (ASR), and the mechanical properties of cement mortars containing waste glass powder (WG) as a cement replacement with and without CS are investigated and compared with plain mortar. In addition, the hydration of cement compounds was followed by differential thermal analysis (DTA), thermogravimetric analysis (TGA), and X-ray diffraction (XRD). The results show that incorporation of WG has a positive effect on the mechanical properties of cement mortars especially when CS is presented. In addition, the DTA/TGA results and XRD analysis show a reduction in the calcium hydroxide (CH) content in mortars with both WG and a hybrid combination of WG and CS. This confirms the improvement of mechanical properties and the occurrence of the pozzolanic reaction after 28 days of hydration.

KW - Nano-materials

KW - Concrete

KW - Mechanical

U2 - 10.1016/j.matdes.2011.07.008

DO - 10.1016/j.matdes.2011.07.008

M3 - Article

SN - 0261-3069

VL - 33

SP - 127

EP - 135

JO - Materials & Design

JF - Materials & Design

ER -

Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

Abstract

Keywords

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