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Development of Self-Healing Sustainable Concrete Using Recycled Materials.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Development of Self-Healing Sustainable Concrete Using Recycled Materials.
Author:	Jianing, Sun.
Published:	Ann Arbor : ProQuest Dissertations & Theses, 2022
Description:	195 p.
Notes:	Source: Dissertations Abstracts International, Volume: 84-04, Section: B.
Notes:	Advisor: Hau, Kong Kian.
Contained By:	Dissertations Abstracts International84-04B.
Subject:	Mechanical properties.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29352754
ISBN:	9798352683262

Development of Self-Healing Sustainable Concrete Using Recycled Materials.
Jianing, Sun.

Development of Self-Healing Sustainable Concrete Using Recycled Materials. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 195 p.

Source: Dissertations Abstracts International, Volume: 84-04, Section: B.

Thesis (M.E.)--National University of Singapore (Singapore), 2022.

This item must not be sold to any third party vendors.

Concrete is an open composite system, which allows the incorporation of various cementitious or inert materials as cement or aggregate components, thereby offering the possibility of creating a smart concrete. This study investigated the autogenous healing of concrete blended with ground granulated blast furnace slag (GGBS) and polyvinyl alcohol (PVA) fiber in terms of flexural strength recovery and crack sealing behavior. 50% GGBS-blended concrete was found to have good autogenous healing ability and the addition of PVA fibers indirectly further increases the effectiveness of autogenous healing in concrete. The hydration of cement paste was investigated for its relationship with autogenous healing using isothermal calorimetry, X-ray diffraction (XRD), and thermogravimetric analysis (TGA). It was found that the exterior of GGBS-blended concrete was prone to carbonation which affects its autogenous ability. The hydration rate and ultimate degree of hydration of GGBS-blended concrete were lower than those of pure Portland cement concrete, suggesting that the use of GGBS provides a greater potential for autogenous healing both in the short and long term. This study is looking forward to the development of concrete that not only has the ability of self-healing, but is also good durability, lower heat development, environmentally friendly, and can be used in industry in a short time.

ISBN: 9798352683262Subjects--Topical Terms:

942565
Mechanical properties.

Development of Self-Healing Sustainable Concrete Using Recycled Materials.
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502 $a Thesis (M.E.)--National University of Singapore (Singapore), 2022.
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520 $a Concrete is an open composite system, which allows the incorporation of various cementitious or inert materials as cement or aggregate components, thereby offering the possibility of creating a smart concrete. This study investigated the autogenous healing of concrete blended with ground granulated blast furnace slag (GGBS) and polyvinyl alcohol (PVA) fiber in terms of flexural strength recovery and crack sealing behavior. 50% GGBS-blended concrete was found to have good autogenous healing ability and the addition of PVA fibers indirectly further increases the effectiveness of autogenous healing in concrete. The hydration of cement paste was investigated for its relationship with autogenous healing using isothermal calorimetry, X-ray diffraction (XRD), and thermogravimetric analysis (TGA). It was found that the exterior of GGBS-blended concrete was prone to carbonation which affects its autogenous ability. The hydration rate and ultimate degree of hydration of GGBS-blended concrete were lower than those of pure Portland cement concrete, suggesting that the use of GGBS provides a greater potential for autogenous healing both in the short and long term. This study is looking forward to the development of concrete that not only has the ability of self-healing, but is also good durability, lower heat development, environmentally friendly, and can be used in industry in a short time.
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