Interface bonding properties of polyvinyl alcohol (PVA) fiber in alkali-activated slag/fly ash

被引：11

作者：

Zhang, Shizhe ^{[1
,2
]}

He, Shan ^{[1
]}

Ghiassi, Bahman ^{[3
]}

van Breugel, Klaas ^{[1
]}

Ye, Guang ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Civil Engn & Geosci, Sect Mat & Environm, Microlab, Stevinweg 1, NL-2628 CN Delft, Netherlands

[2] Renewi Mineralz & Water, Vlasweg 12, NL-4782 PW Moerdijk, Netherlands

[3] Univ Birmingham, Sch Engn, Birmingham B15 2TT, England

来源：

CEMENT AND CONCRETE RESEARCH | 2023年 / 173卷

基金：

中国国家自然科学基金;

关键词：

Bonding; Interface; Fiber pullout; PVA; Alkali-activation; Slag; Fly ash; FLY-ASH; MICROSTRUCTURAL DEVELOPMENT; MECHANICAL-PROPERTIES; POLY(VINYL ALCOHOL); FRACTURE-BEHAVIOR; REACTION-KINETICS; SILICATE POWDER; CEMENT PASTE; STRENGTH; GEOPOLYMER;

D O I：

10.1016/j.cemconres.2023.107308

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents an experimental study on the interface bonding properties of polyvinyl alcohol (PVA) fiber in alkali-activated slag/fly ash (AASF) pastes. Three interface bonding properties (i.e., the chemical bonding energy Gd, the initial frictional bond strength tau(0), and slip-hardening behavior) were determined using single-fiber pullout tests. The microstructure and chemical composition of the reaction products in the fiber/matrix interfacial transition zone (ITZ) and the nearby matrix were also characterized to reveal the influence of PVA fiber to its surrounding matrix. It is found that G(d) increases primarily with increasing Ca/(Si+Al) ratio of C-(N-)A-S-H gel. Unlike that in cementitious materials, the inclusion of PVA fiber in AASF pastes promotes the formation of a high-Ca C-(N-)A-S-H phase rather than crystalline portlandite near the fiber surface. This study provides useful guidance for tailoring the interface bonding properties of AASF and also the development of high-performance composites such as strain-hardening geopolymer composites.

引用

页数：12

共 50 条

[21] Mechanical and durability properties of alkali-activated fly ash concrete with increasing slag content
Aiken, Timothy A.
Kwasny, Jacek
Sha, Wei
Tong, Kien T.
CONSTRUCTION AND BUILDING MATERIALS, 2021, 301
[22] Influence of steel slag on the properties of alkali-activated fly ash and blast-furnace slag based fiber reinforced composites
Zhao, Yujing
Shi, Tao
Cao, Liying
Kan, Lili
Wu, Min
CEMENT & CONCRETE COMPOSITES, 2021, 116
[23] Production and evaluation of alkali-activated binders of low-calcium fly ash with slag replacement
Reddy, K. Chiranjeevi
Subramaniam, Kolluru V. L.
ADVANCES IN CEMENT RESEARCH, 2023, 35 (08) : 358 - 372
[24] Mechanisms of autogenous shrinkage of alkali-activated slag and fly ash pastes
Li, Zhenming
Lu, Tianshi
Liang, Xuhui
Dong, Hua
Ye, Guang
CEMENT AND CONCRETE RESEARCH, 2020, 135
[25] Preparation and piezoresistive properties of carbon fiber-reinforced alkali-activated fly ash/slag mortar
Deng, L.
Ma, Y.
Hu, J.
Yin, S.
Ouyang, X.
Fu, J.
Liu, A.
Zhang, Z.
CONSTRUCTION AND BUILDING MATERIALS, 2019, 222 : 738 - 749
[26] Engineering properties of alkali-activated fly ash concrete
Fernández-Jiménez, AM
Palomo, A
López-Hombrados, C
ACI MATERIALS JOURNAL, 2006, 103 (02) : 106 - 112
[27] Thermal behavior of alkali-activated fly ash/slag with the addition of an aerogel as an aggregate replacement
Seo, Joonho
Bae, S. J.
Jang, D. I.
Park, Solmoi
Yang, Beomjoo
Lee, H. K.
CEMENT & CONCRETE COMPOSITES, 2020, 106
[28] Influence of Different Parameters on the Performance of Alkali-Activated Slag/Fly Ash Composite System
Zhang, Zhipeng
Jia, Yanmin
Liu, Jinliang
MATERIALS, 2022, 15 (08)
[29] Experimental Study On Alkali-activated Slag-Lithium Slag-Fly Ash Environmental Concrete
Zhang, Lanfang
Wang, Ruiyan
APPLICATIONS OF ENGINEERING MATERIALS, PTS 1-4, 2011, 287-290 : 1237 - 1240
[30] Waste glass as partial mineral precursor in alkali-activated slag/fly ash system
Zhang, Shizhe
Keulen, Arno
Arbi, Kamel
Ye, Guang
CEMENT AND CONCRETE RESEARCH, 2017, 102 : 29 - 40

← 1 2 3 4 5 →