Compressive Strength and Microstructure of Alkali-Activated Blast Furnace Slag/Sewage Sludge Ash (GGBS/SSA) Blends Cured at Room Temperature

被引：30

作者：

Tashima, M. M. ^{[1
]}

Reig, L. ^{[2
]}

Santini, M. A., Jr. ^{[1
]}

Moraes, J. C. B. ^{[1
]}

Akasaki, J. L. ^{[1
]}

Paya, J. ^{[3
]}

Borrachero, M. V. ^{[3
]}

Soriano, L. ^{[3
]}

机构：

[1] Univ Estadual Paulista, UNESP, MAC UNESP Grp Pesquisa Mat Alternat Construcao, Campus Ilha Solteira, Sao Paulo, Brazil

[2] Univ Jaume 1, EMC, Castellon de La Plana, Spain

[3] Univ Politecn Valencia, GIQUIMA Grp, ICITECH Inst Ciencia & Tecnol Hormigon, Valencia, Spain

来源：

WASTE AND BIOMASS VALORIZATION | 2017年 / 8卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

Sewage sludge ash; Waste management; Alkali-activated cement; Compressive strength; INCINERATED SEWAGE-SLUDGE; FLY-ASH; LIGHTWEIGHT AGGREGATE; SLAG MORTARS; WASTE GLASS; CEMENT; CONCRETE; BEHAVIOR; SSA; WORKABILITY;

D O I：

10.1007/s12649-016-9659-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In the present work, ground granulated blast furnace slag (GGBS) and sewage sludge ash (SSA) blends were assessed for the production of alkali-activated pastes and mortars. Percentages of SSA to substitute GGBS ranged from 0 to 30 wt% and sodium concentrations of 6-10 mol kg(-1) were used for the activating solutions. Pastes and mortars were cured at 20 degrees C for up to 90 days. Raw materials were characterised by granulometric analysis, XRF, XRD, FTIR and SEM techniques. The replacement percentage of GGBS by SSA and the sodium hydroxide concentration of the alkaline activator were optimised to produce mortar with compressive strengths close to 30 MPa after 28 curing days at room temperature. Best results were obtained in samples blended with 20 wt% SSA activated with 6 mol kg(-1) NaOH solutions which, according to the XRD, FTIR and microscopic results, contained higher amounts of (N,C)-A-S-H gel. The potential use of SSA for the development of alternative cementitious materials at room temperature has been demonstrated.

引用

页码：1441 / 1451

页数：11

共 41 条

[11] Carbonation of ternary building cementing materials [J].

Fernandez-Carrasco, Lucia ;

Torrens-Martin, D. ;

Martinez-Ramirez, S. .

CEMENT & CONCRETE COMPOSITES, 2012, 34 (10) :1180-1186

[12] The alkali-silica reaction in alkali-activated granulated slag mortars with reactive aggregate [J].

Fernández-Jiménez, A ;

Puertas, F .

CEMENT AND CONCRETE RESEARCH, 2002, 32 (07) :1019-1024

[13] Effect of alkalis on fresh C-S-H gels. FTIR analysis [J].

Garcia Lodeiro, I. ;

Macphee, D. E. ;

Palomo, A. ;

Fernandez-Jimenez, A. .

CEMENT AND CONCRETE RESEARCH, 2009, 39 (03) :147-153

[14] Effect of Calcium Additions on N-A-S-H Cementitious Gels [J].

Garcia-Lodeiro, Ines ;

Fernandez-Jimenez, Ana ;

Palomo, Angel ;

Macphee, Donald E. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (07) :1934-1940

[15]

Granizo ML, 2002, J AM CERAM SOC, V85, P225

[16] The development of compressive strength of ground granulated blast furnace slag-palm oil fuel ash-fly ash based geopolymer mortar [J].

Islam, Azizul ;

Alengaram, U. Johnson ;

Jumaat, Mohd Zamin ;

Bashar, Iftekhair Ibnul .

MATERIALS & DESIGN, 2014, 56 :833-841

[17] Advances in alternative cementitious binders [J].

Juenger, M. C. G. ;

Winnefeld, F. ;

Provis, J. L. ;

Ideker, J. H. .

CEMENT AND CONCRETE RESEARCH, 2011, 41 (12) :1232-1243

[18] A review: The comparison between alkali-activated slag (Si plus Ca) and metakaolin (Si plus Al) cements [J].

Li, Chao ;

Sun, Henghu ;

Li, Longtu .

CEMENT AND CONCRETE RESEARCH, 2010, 40 (09) :1341-1349

[19] Processing and characterization of calcined kaolin cement powder [J].

Liew, Y. M. ;

Kamarudin, H. ;

Al Bakri, A. M. Mustafa ;

Luqman, M. ;

Nizar, I. Khairul ;

Ruzaidi, C. M. ;

Heah, C. Y. .

CONSTRUCTION AND BUILDING MATERIALS, 2012, 30 :794-802

[20] Production and characterization of glazed tiles containing incinerated sewage sludge [J].

Lin, D. F. ;

Chang, W. C. ;

Yuan, C. ;

Luo, H. L. .

WASTE MANAGEMENT, 2008, 28 (03) :502-508

← 1 2 3 4 5 →