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The study of autoclaved cellulose fiber-reinforced cement composites

✍ Scribed by F. Bakula; V. Kaučič

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
607 KB
Volume
25
Category
Article
ISSN
0008-8846

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✦ Synopsis

The effects of individual or combined addition of sodium water glass (SWG), calcite and CaCl2 into the starting material, consisting of 92 wt.% of Portland cement with sand and 8 wt.% of cellulose fibers, were studied after autoclaving.

Bending strength, bending toughness and module of elasticity were determined. The optimal additions were either 26 wt.% of SWG and 10 wt.% of calcite (sample No. 4) or 5 wt.% of CaC12 (sample No. 2). Autoclaved products were also investigated by X-ray diffraction (XRD), mercury intrusion porosimetry (MIP) and scanning electron microscopy (SEM). All results were compared to the product obtained without additions.

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