Characterisation of Microstructure as a Systematic Approach to High Strength Cements

1984 ◽  
Vol 42 ◽  
Author(s):  
Karen L. Scrivener ◽  
K. D. Baldie ◽  
Yick Halse ◽  
P. L. Pratt
Keyword(s):  
Image Analysis ◽  
Fly Ash ◽  
Calcium Hydroxide ◽  
Cement Paste ◽  
Systematic Approach ◽  
High Strength ◽  
Quantitative Image Analysis ◽  
Quantitative Image ◽  
Crack Paths

AbstractUltimately the strength of cement is determined by the properties, amounts and distributions of the phases it contains and by the'way these are bonded together. Here an example is presented of the determination of the amount and distribution of calcium hydroxide, by BEI and quantitative image analysis, in a cement paste and cement/fly ash mixture which had previously been studied by TGA. Examination of crack paths on BEIs of polished cement surfaces gives some indication as to the importance of calcium hydroxide in determining the properties of the cement.

An Approach to Quantitative Image Analysis for Cement Pastes

1994 ◽  
Vol 370 ◽  
Author(s):  
Yuting Wang ◽  
Sidney Diamond
Keyword(s):  
Image Analysis ◽  
Calcium Hydroxide ◽  
Cement Paste ◽  
Quantitative Image Analysis ◽  
Feature Analysis ◽  
Hole Filling ◽  
Gray Scale ◽  
Cement Pastes ◽  
Quantitative Image ◽  
Average Size

AbstractCement paste microstructure as revealed in backscatter SEM presents a number of inherent difficulties that interfere with implementing quantitative image analysis. An approach to overcoming these difficulties is presented, involving gray scale segmentation coupled with application of a hole filling algorithm. Using this approach it is possible to isolate the unhydrated and hydrated portions of phenograins separately, and to combine them for analysis of combined phenograins. Pores and coarse calcium hydroxide masses may also be isolated for feature analysis. Results are reported on mature cement pastes prepared at two water:cement ratios (w:c 0.45 and w:c 0.30) and with and without superplasticizer. It was found that superplasticizer greatly reduced the content and the average size of “visible pores” and increased the content and the average size of coarse CH particles compared to corresponding plain pastes. The area per hydrated phenograin was much smaller in the lower w:c ratio pastes and higher in superplasticized pastes. Among the solid features measured, unhydrated cement particles had the smallest circularity values (at about 2.7) and were the most circular features; Hydrated phenograins had the largest circularity values (at 3.5) and were the most elongated features.

Quantitative image analysis in the determination of sulco-gyral pattern variations in the temporal lobe of schizophrenics

1992 ◽  
Vol 6 (2) ◽  
pp. 153
Author(s):  
G.W. Roberts ◽  
S.M. Gentleman ◽  
B.J. Williams ◽  
C.J. Bruton ◽  
V. Vucicevic ◽  
...  
Keyword(s):  
Image Analysis ◽  
Temporal Lobe ◽  
Quantitative Image Analysis ◽  
Quantitative Image

Determination of Proliferation Index in Advanced Ovarian Cancer Using Quantitative Image Analysis

1993 ◽  
Vol 99 (6) ◽  
pp. 736-740 ◽  
Author(s):  
Patrick A. Jordan ◽  
Billie-Jo M. Kerns ◽  
Jeffrey C. Pence ◽  
Matthew F. Kohler ◽  
Robert C. Bast ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Image Analysis ◽  
Advanced Ovarian Cancer ◽  
Quantitative Image Analysis ◽  
Proliferation Index ◽  
Quantitative Image

scholarly journals SIMS DETERMINATION OF THE SURFACE LITHIUM DEPLETION ZONE IN Al-Li ALLOYS BY QUANTITATIVE IMAGE ANALYSIS

1987 ◽  
Vol 48 (C3) ◽  
pp. C3-521-C3-526 ◽  
Author(s):  
N. THORNE ◽  
A. DUBUS ◽  
J. M. LANG ◽  
F. DEGREVE ◽  
P. MEYER
Keyword(s):  
Image Analysis ◽  
Quantitative Image Analysis ◽  
Depletion Zone ◽  
Quantitative Image ◽  
Lithium Depletion

Determination of Proliferation Index with MIB-1 in Advanced Ovarian Cancer Using Quantitative Image Analysis

1994 ◽  
Vol 101 (2) ◽  
pp. 192-197 ◽  
Author(s):  
Billie-Jo M. Kerns ◽  
Patrick A. Jordan ◽  
Lorin L. Faerman ◽  
Andrew Berchuck ◽  
Robert C. Bast ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Image Analysis ◽  
Advanced Ovarian Cancer ◽  
Quantitative Image Analysis ◽  
Proliferation Index ◽  
Quantitative Image ◽  
Mib 1

A Stludy of the Interfacial Region Between Cement Paste and Aggregate in Concrete

1987 ◽  
Vol 114 ◽  
Author(s):  
Karen L. Scrivener ◽  
Alison K. Crumbie ◽  
P. L. Pratt
Keyword(s):  
Image Analysis ◽  
Cement Paste ◽  
Quantitative Image Analysis ◽  
Interfacial Region ◽  
Interfacial Zone ◽  
Preliminary Results ◽  
Quantitative Image

ABSTRACTThe application of quantitative image analysis to the measurenent of microstructural gradients in the interfacial zone in concrete is described. Some preliminary results are presented and discussed.

Determination of Proliferation Index By MIB-1 Immunostaining in Early Stage Breast Cancer Using Quantitative Image Analysis

1995 ◽  
Vol 1 (6) ◽  
pp. 362-371 ◽  
Author(s):  
Lester J. Layfield ◽  
Billie-Jo M. Kerns ◽  
Debbi H. Conlon ◽  
J. Dirk Iglehart ◽  
Jeffrey R Marks ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Image Analysis ◽  
Early Stage ◽  
Quantitative Image Analysis ◽  
Early Stage Breast Cancer ◽  
Proliferation Index ◽  
Quantitative Image ◽  
Mib 1
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