Comparative cement paste deflocculant
studies show (Hommer, Wutz 2005), that suspension without deflocculant
hy-dration induction period lasts about 30 minutes (later to begin a massive hydrate deposition), and the suspensions deflocculant
induction period lasts about 2-3 hours, depending on the side chain length.
Accepted October 12, 2012 Table 1 Composition of mixes (weight %) Components Mix codes RC-0 RC-1 RC-3 High alumina cement 27.1 27.1 27.1 Metallurgical slag 7.8 7.8 7.8 Liquid glass 25 25 25 Firestone aggregate 34.85 34.85 34.85 Deflocculant
FS-20 0.25 0.25 0.25 Micro silica * 5 5 5 Micro fibre * - 1 3 water-cement ratio (w/c) 0.5 0.5 0.5 * above 100% Table 2 Summary of the results Mix Compressive Elastic Flexural Flexural codes strength modulus strength modulus [[sigma].
Sodium pyrophosphate (Penta a.s., Czech Republic) was used as a deflocculant
for the sedimentation, laser diffraction, and rheological measurements.
The water contained poly(ammonium methacrylate), an electrosteric deflocculant
that prevented the powder from aggregation.
Casting slips are a world unto themselves and are much more sensitive to the exact ratios of water, clay, filler, flux and deflocculant
Further, it is used as a deflocculant
with the addition of sodium silicate in the preparation of slip casting.
in Low Solids Non-Dispersed Muds or Inhibitive Lime Muds; improves fluid loss control by improving clay platelet orientation.
Recent Developments in Deflocculants
for Castables, in the 9th Biennial Worldwide Congress on Refractories.
Zeta potential instruments provide better knowledge of the interparticle forces in the colloid, allowing product developers to alter pH, add deflocculants
or otherwise fine-tune their products for better stability.