Rheological behavior of the composite matrix Diglycidylether of bisphenol-A (DGEBA/wt% blast furnace slag (BFS)

Abstract This paper reports experiments on the rheological behavior of DGEBA epoxy resin filled with blast furnace slag nanoparticles. The study of the variation of stress and viscosity as a function of shear rate is emphasized. The purpose of this study is to investigate the rheological behavior of DGEBA loaded with blast furnace slag (BFS), the selected mixtures cannot exceed 10% in wt%, given the fineness of grinding which SSB= 44.5 m2.g-1. We tested the compositions of DGEBA/%wt blast furnace slag (BFS) at filling ratios of (10, 20, 30, 40 and 50%). Viscosity and shear stress as a function of temperature and filler rate were investigated. In this study, formulations were developed to test the best compositions with favorable rheological behavior for better processing of these matrices.

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Effects of epoxy resin on ground-granulated blast furnace slag stabilized marine sediments

RSC Advances ◽

10.1039/c7ra06460h ◽

2017 ◽

Vol 7 (58) ◽

pp. 36460-36472 ◽

Cited By ~ 7

Author(s):

Jiapei Du ◽

Yuhuan Bu ◽

Shenglai Guo ◽

Leiju Tian ◽

Zhonghou Shen

Keyword(s):

Blast Furnace ◽

Epoxy Resin ◽

Marine Sediments ◽

Blast Furnace Slag ◽

Mechanical Performance ◽

Environmentally Friendly ◽

Granulated Blast Furnace Slag ◽

Furnace Slag

In this study, an environmentally friendly epoxy resin is mixed with ground-granulated blast furnace slag (GGBS) for use as a stabilizer to enhance mechanical performance and leaching resistance properties of marine sediments.

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Cements in radioactive waste disposal: some mineralogical considerations

Mineralogical Magazine ◽

10.1180/minmag.1985.049.351.08 ◽

1985 ◽

Vol 49 (351) ◽

pp. 211-221 ◽

Cited By ~ 16

Author(s):

C. E. McCulloch ◽

M. J. Angus ◽

R. W. Crawford ◽

A. A. Rahman ◽

F. P. Glasser

Keyword(s):

Blast Furnace ◽

Radioactive Waste ◽

Blast Furnace Slag ◽

Radioactive Waste Disposal ◽

Composite Matrix ◽

Fuel Ash ◽

Pulverized Fuel ◽

Pulverized Fuel Ash ◽

Furnace Slag

AbstractCementitious matrices are being assessed for immobilization of radioactive wastes. This paper discusses some mineralogical aspects of cement chemistry and the uses of siliceous minerals as selective sorbants to enhance immobilization potential.Studies of sorption and leaching of caesium from pulverized fuel ash (PFA), blast furnace slag, tobermorite, xonotlite, and clinoptilolite are reported. The role of incorporation of these additives in cement and the effect on the nature of the composite matrix on caesium behaviour has been investigated. Specific mechanisms of the interaction of additives with highly alkaline cement environment are described. While slags, PFA, and clinoptilolite undergo reaction at different rates, tobermorite and xonotlite appear to be stable in cement.

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Early-age behavior of blast-furnace slag cement pastes produced with carbon nanotubes grown directly on clinker

Revista IBRACON de Estruturas e Materiais ◽

10.1590/s1983-41952020000300010 ◽

2020 ◽

Vol 13 (3) ◽

pp. 603-612

Author(s):

P. A. SOARES ◽

A. Z. BENEDETTI ◽

T. C. SOUZA ◽

J. M. CALIXTO ◽

L. O. LADEIRA

Keyword(s):

Carbon Nanotubes ◽

Blast Furnace ◽

Yield Stress ◽

Rheological Behavior ◽

Blast Furnace Slag ◽

Production Costs ◽

Cement Clinker ◽

Cement Pastes ◽

Setting Times ◽

Furnace Slag

Abstract Carbon nanotubes are a promising material to solve the low tensile strength and ductility of Portland cement-based materials. Carbon nanotubes (CNTs) synthesized directly on cement clinker particles can also reduce production costs and help dispersion. In this scenario, this paper analyzes the fresh state rheological behavior, as well as the initial hydration period of blast-furnace slag (Brazilian CP III 40 RS) cement pastes produced with CNTs grown directly on clinker. CP III 40 RS was selected since it is one of the most used cement by the construction industry in Brazil. Cement pastes containing 0.1% and 0.3% of CNTs with respect to cement content were compared with CNT-free pastes. No chemical admixtures were used as a dispersant in all cases. The yield stress, plastic viscosity, temperature profile and evolved accumulated heat during the initial hydration period as well as setting times are the properties investigated. The results show that the addition of CNTs does not alter the rheological behavior of the cement pastes considering the employed concentrations, although the yield stress values were larger. The presence of CNTs in the cement pastes did not change the evolved accumulated heat during the first 72 hours of the hydration period.

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