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© 2012 HORIBA, Ltd. All rights reserved.
Measuring the Particle Size and Shape of Building Materials
Ian Treviranusian.treviranus@horiba.comwww.horiba.com/us/particle
© 2012 HORIBA, Ltd. All rights reserved.
What we’ll talk about
Measurement technologies
Application data
Q&A
© 2012 HORIBA, Ltd. All rights reserved.
Technologies in this Webinar
LA-950Laser Diffraction
SZ-100Dynamic Light Scattering & Zeta Potential
CAMSIZER & CAMSIZER XTDynamic Image Analysis
PSA300Static Image Analysis
SA-9600Flowing Gas BET Surface Area
© 2012 HORIBA, Ltd. All rights reserved.
LA-950: Laser Diffraction
Particle size performance leaderNinth generationUltra durableLowest total cost of ownershipSuspension, emulsion, powder,
paste, gel10 nanometer – 3 mm
© 2012 HORIBA, Ltd. All rights reserved.
Dynamic Range 0.01 – 3000 µmWidest wet measurement rangeOnly system to measure 30 nm!
30 nm silica 40 nm latex
© 2012 HORIBA, Ltd. All rights reserved.
Superior Dry Powder Feeder
Direct flow ofpowder down tocell rather thanturn 90o, thenaround plastic tube, no densityrestriction likehorizontal units, zero impact surfaces meansgood dispersionw/o comminution
Webinar TE016: Optimizing Dry Powder Measurements
© 2012 HORIBA, Ltd. All rights reserved.
Superior Dry Powder Feeder
Automatic control of sample feed rateLA-950 monitors amount of sample
supplied by the vibratory feeder. Automatic feed back control keeps constant mass flow rate of powder during measurementThis is CRITICAL
– More reproducible, robust– No ghost peaks– No cutting off results– Fewer headaches!
Unique to HORIBA
© 2012 HORIBA, Ltd. All rights reserved.
CAMSIZER Series: Image Analysis
High resolution size & shape Intelligent sieve correlationPatented dual captureCAMSIZER 30 micron – 30 millimeterCAMSIZER XT 1 micron – 3 millimeter
© 2012 HORIBA, Ltd. All rights reserved.
Advantage of Image Analysis
More Detailed Size Analysis due to Understanding of Particle Shape:Length, Width, Average Diameter
© 2012 HORIBA, Ltd. All rights reserved.
Shape Analysis
2
4P
ASPHT
max
min
Fe
c
xx
lw
lb
SPHT0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.90
10
20
30
40
50
60
70
80
90
Q3 [%]
Pharma-Product-1-30kPa-bonne-forme-_xc_min_009.rdfPharma-Product-1-30kPa_Vitesse-Adaption_xc_min_008.rdflactose-30kPa_xFemax_003.rdfPharma-Product-2-460_xc_min_008.rdf
Equivalent spherical diameter
Perimeter
Longest diameter
Shortest daimeter
Area
b/l0.4 0.5 0.6 0.7 0.80
10
20
30
40
50
60
70
80
90
Q3 [%]
Pharma-Product-1-30kPa-bonne-forme-_xc_min_009.rdfPharma-Product-1-30kPa_Vitesse-Adaption_xc_min_008.rdflactose-30kPa_xFemax_003.rdfPharma-Product-2-460_xc_min_008.rdf
© 2012 HORIBA, Ltd. All rights reserved.
What we’ll talk about
Measurement technologies
Application data
Q&A
© 2012 HORIBA, Ltd. All rights reserved.
Applications in this Webinar
CementConcreteLimestone/GCC/PCC/DolomiteGypsum
There are MANY others, but only so much time…
© 2012 HORIBA, Ltd. All rights reserved.
General Importance for Powders
Powder flowParticle size, Particle shape
Dust hazard/nuisanceParticle size
DissolutionParticle size, Surface area
ReactivityParticle size, Particle shape, Surface area
© 2012 HORIBA, Ltd. All rights reserved.
Portland Cement
Most common cementParticle size affects rate of hydration
(1 um ~ 1 day, 10 um ~ 1 month)Set too fast, set too slowFast expansion, poor strength
Monitor size to control grinding processHistorically measured using sieves and
Blaine valuesMisleading
© 2012 HORIBA, Ltd. All rights reserved.
Portland Cement
Most common cementParticle size affects rate of hydration
(1 um ~ 1 day, 10 um ~ 1 month)Set too fast, set too slowFast expansion, poor strength
Monitor size to control grinding processHistorically measured using sieves and
Blaine valuesMisleading
© 2012 HORIBA, Ltd. All rights reserved.
NIST SRM 114q
© 2012 HORIBA, Ltd. All rights reserved.
Portland Cement on the LA-950
© 2012 HORIBA, Ltd. All rights reserved.
Cement Replacements
Raw material cost and/or “green” costsFly ashSlag (GGBS)
*Housing and Building National Research Center, Egypt
© 2012 HORIBA, Ltd. All rights reserved.
Cement Replacements
Fly ash overlay with Portland cement using LA-950 PowderJet dry feeder
© 2012 HORIBA, Ltd. All rights reserved.
Concrete
Generally: cement + aggregate + waterSize of cement affects hydrationSize and shape of aggregate affects
workability, compressibilityCommonly use admixtures to control
propertiesPlasticizersPigmentsAccelerate/retard hydrationFumed silica
© 2012 HORIBA, Ltd. All rights reserved.
Aggregate on the CAMSIZER
© 2012 HORIBA, Ltd. All rights reserved.
Calcium Carbonate
Comes in two varietiesGround CaCO3
– Typically broader size distributions– Irregular particle shape
Precipitated CaCO3
– Can be narrow distributions– Can produce any of several morphologies
Size, color, and chemical composition determine applicationRoofing, Stucco, Grout, Masonry blocks
© 2012 HORIBA, Ltd. All rights reserved.
GCC on the LA-950
© 2012 HORIBA, Ltd. All rights reserved.
Dolomite
Similar to limestone in useMany different grades
© 2012 HORIBA, Ltd. All rights reserved.
Dolomite
Shape data for same six grades
© 2012 HORIBA, Ltd. All rights reserved.
Gypsum
Gypsum board/drywall, plaster, cementRecovered from flue-gas, variable sizeNaturally occurring typically finer
© 2012 HORIBA, Ltd. All rights reserved.
What we’ll talk about
Measurement technologies
Application data
Q&A
© 2012 HORIBA, Ltd. All rights reserved.
For More Details
Visit http://www.horiba.com/particle
Contact us directly at labinfo@horiba.com
Visit the Download Center to find this recorded presentation and many more on other topics
© 2012 HORIBA, Ltd. All rights reserved.
Danke
Gracias
Большое спасибо
GrazieاُشْكرΣας ευχαριστούμε
감사합니다 Obrigado
Tacka dig
谢谢ขอบคุณครบั
ありがとうございました
धन्यवादநன்ற
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