Modification of the hydration products of hydrated cement paste by fly ash, β-cyclodextrin and fly ash-β-cyclodextrin composite

被引：5

作者：

Ikotun, B. D. ^{[1
]}

Mishra, S. B. ^{[2
]}

Fanourakis, G. C. ^{[3
]}

机构：

[1] Univ South Africa, Dept Civil & Chem Engn, Coll Sci Engn & Technol, ZA-1710 Johannesburg, South Africa

[2] Univ South Africa, Nanotechnol & Water Sustainabil Unit, Coll Sci Engn & Technol, Florida Campus, Johannesburg, South Africa

[3] Univ Johannesburg, Dept Civil Engn Technol, Fac Engn, Johannesburg, South Africa

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2017年 / 87卷 / 1-2期

关键词：

Fly ash; Cyclodextrin; XRD; SEM; FT-IR; Hydration; Pozzolanic; X-RAY-DIFFRACTION; PORTLAND-CEMENT; XRD;

D O I：

10.1007/s10847-017-0692-x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Studies on the modification of the hydration products of fly ash (FA), beta-cyclodextrin (beta-CD) and fly ash-beta-cyclodextrin (FA-beta-CD) composite cement paste samples as hydration progressed were done using X-ray diffraction analysis, scanning electron microscopy and Fourier transform infrared spectroscopy. This paper investigates the effect of FA, beta-CD and FA-beta-CD composite on the hydration and pozzolanic reactions. It was evident from all the analyses that beta-CD improved the hydration reaction from the 7 day hydration period, while improvement on pozzolanic reaction was revealed from the 28 day hydration period. The study contributed to the knowledge of FA performance as a composite with cyclodextrin and promoted the continued inclusion of FA in concrete.

引用

页码：219 / 237

页数：19

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