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A Meta-Analysis on the Constitutive Behavior of Engineered Cementitious Composite.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	A Meta-Analysis on the Constitutive Behavior of Engineered Cementitious Composite./
作者:	Vallangca, Marie Angelica Ventura.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	99 p.
附註:	Source: Masters Abstracts International, Volume: 83-02.
Contained By:	Masters Abstracts International83-02.
標題:	Civil engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28321111
ISBN:	9798534699159

A Meta-Analysis on the Constitutive Behavior of Engineered Cementitious Composite.
Vallangca, Marie Angelica Ventura.

A Meta-Analysis on the Constitutive Behavior of Engineered Cementitious Composite. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 99 p.

Source: Masters Abstracts International, Volume: 83-02.

Thesis (M.S.)--The University of Texas Rio Grande Valley, 2021.

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

A meta-analysis is conducted for the mechanical properties of an Engineered Cementitious Composite (ECC). ECC is a special type of fiber reinforced cementitious composites that is characterized by high ductility (3-5% strain) with 1.5-2% fiber content by volume. The brittle nature and weak tensile strength of concrete cause various damages such as cracking. ECC has superior cracking resistance considered as a sustainable alternative for construction and repair. Meta-analysis is a statistical method to remove a possible bias of a single set of data. A meta-analysis collects and analyzes a large group of data obtained from multiple investigations of the same subject, and eventually can draw highly reliable trends and conclusions. The objective of this research is to identify the relationship between the mixture design and mechanical behavior of ECC through meta-analysis. In this study, more than 500 stress-strain curves of ECC were collected from 180 technical papers. The meta-analysis revealed that a peak improvement in the tensile strength can be attained at 40% fly ash content binder. The most widely used fly ash content is 55%, and the strength of ECC with 55% fly ash is very close to the ideal mix (40% fly ash). Another observation from the meta-analysis is that the ECC data produced by various investigators show wide scattering even for the same mixture designs. The wide scattering indicates that a special care is needed for the quality control of ECC. The results from this study will accelerate practical applications of ECC technology.

ISBN: 9798534699159Subjects--Topical Terms:

860360
Civil engineering.
Subjects--Index Terms:

ECC

A Meta-Analysis on the Constitutive Behavior of Engineered Cementitious Composite.
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500 $a Source: Masters Abstracts International, Volume: 83-02.
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520 $a A meta-analysis is conducted for the mechanical properties of an Engineered Cementitious Composite (ECC). ECC is a special type of fiber reinforced cementitious composites that is characterized by high ductility (3-5% strain) with 1.5-2% fiber content by volume. The brittle nature and weak tensile strength of concrete cause various damages such as cracking. ECC has superior cracking resistance considered as a sustainable alternative for construction and repair. Meta-analysis is a statistical method to remove a possible bias of a single set of data. A meta-analysis collects and analyzes a large group of data obtained from multiple investigations of the same subject, and eventually can draw highly reliable trends and conclusions. The objective of this research is to identify the relationship between the mixture design and mechanical behavior of ECC through meta-analysis. In this study, more than 500 stress-strain curves of ECC were collected from 180 technical papers. The meta-analysis revealed that a peak improvement in the tensile strength can be attained at 40% fly ash content binder. The most widely used fly ash content is 55%, and the strength of ECC with 55% fly ash is very close to the ideal mix (40% fly ash). Another observation from the meta-analysis is that the ECC data produced by various investigators show wide scattering even for the same mixture designs. The wide scattering indicates that a special care is needed for the quality control of ECC. The results from this study will accelerate practical applications of ECC technology.
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