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Chemical Dispersion Technology of Natural Brucite Fibers(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2007年第01期
Page:
47-49,65
Research Field:
Publishing date:

Info

Title:
Chemical Dispersion Technology of Natural Brucite Fibers
Author(s):
LI Lian-sheng; LIU Kai-ping
School of Earth Sciences and Resources Management, Chang’ an University, Xi’an 710054, Shaanxi, China
Keywords:
brucite fibers;  chemical dispersion;  fiber-reinforced concrete;  beating degree; Zeta potential;  concrete strength
PACS:
P578.4+95;TB484.1
DOI:
-
Abstract:
The dispersion effects of different surfactants on the two grades of brucite fibers were studied. After the tests of fiber beating degrees, the fiber surface Zeta potentials, the suspension viscosities, the concrete flex- ural strengths and the fiber SEM analysis, it is approved that the chemical dispersion process is effective to the split of brucite fibers. The fiber beating degrees, the surface charges and the suspension viscosities are influenced by the category and the dosage of the surfactants, though the influences are different on the two grades of brucite fibers. The fiber beating degrees, the surface charges and the suspension viscosities are raised with the increase of surfactant dosage. Through the chemical dispersion tests, the natural brucite fibers are split from micro-diameter to nano-diameter scale fibers. When it is used in the concrete reinforcement, the dispersed brucite fibers can play a better role in improving the concrete flexural strengths.

References:

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Last Update: 1900-01-01