Mechanical and thermal properties of fly ash-filled geopolymers

被引：43

作者：

Catauro, Michelina ^{[1
]}

Tranquillo, Elisabetta ^{[1
]}

Barrino, Federico ^{[1
]}

Dal Poggetto, Giovanni ^{[2
]}

Blanco, Ignazio ^{[3
,4
]}

Cicala, Gianluca ^{[3
,4
]}

Ognibene, Giulia ^{[3
,4
]}

Recca, Giuseppe ^{[5
]}

机构：

[1] Univ Campania Luigi Vanvitelli, Dept Engn, Via Roma 29, I-81031 Aversa, Italy

[2] Ecoricerche Srl, Via Principi Normanni 36, I-81043 Capua, Italy

[3] Univ Catania, Dept Civil Engn & Architecture, Viale Andrea Doria 6, I-95125 Catania, Italy

[4] Univ Catania, UdR Catania Consorzio INSTM, Viale Andrea Doria 6, I-95125 Catania, Italy

[5] Natl Res Council CNR, Inst Polymers Composites & Biomat ICPB, Via Paolo Gaifami 17, I-95125 Catania, Italy

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2019年 / 138卷 / 05期

关键词：

Fly ash; Geopolymers; FTIR; Thermal analysis; KAOLINITE; KINETICS; BLENDS; GEL;

D O I：

10.1007/s10973-019-08612-y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Fly ash recycling reduces the amount of waste to be treated or disposed in landfills, allowing both to decrease the environmental damage and to save the costs of transport and disposal of waste. Systems with different percentages in mass of fly ash (20, 50 and 70 mass%) and the remaining part of pure metakaolin were synthesized. The effect of fly ash on the mechanical and thermal properties of a new geopolymer has been investigated in this paper. Fourier transform infrared spectroscopy has allowed us to verify the bonds formation between the geopolymeric matrix and the fly ash. The consolidation of the materials has been confirmed by pH and conductivity at up to 28 days of hardening. Dynamic mechanical analysis, differential scanning calorimetry and thermogravimetric analysis were performed in order to evaluate the thermo-mechanical performance of this new geopolymer in comparison with its counterpart pure geopolymer.

引用

页码：3267 / 3276

页数：10

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