Microstructure of Cement-Based Systems: Volume 370: Bonding and Interfaces in Cementitious MaterialsThis book continues the MRS series on characteristics and properties of cementitious materials. In Part I, recent advances in microstructure and related characterization of cementitious systems are the focus. Topics include: microstructures of "normal" cement systems; microstructure of 'unusual' cement systems; image analysis, modelling and fractal analysis applications; and assessment of pore structures. Part II features presentations on interfacial microstructures, as well as information on elastic and fracture properties, transport properties, and the effects of interfaces on fiber-reinforced systems. |
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Page 7
... cracks and adjacent features , the gradient in gray level at the edge of a crack and selected geometric criteria ( the latter to distinguish cracks from voids ) 6 . The procedures used to identify cracks are presented in detail in ...
... cracks and adjacent features , the gradient in gray level at the edge of a crack and selected geometric criteria ( the latter to distinguish cracks from voids ) 6 . The procedures used to identify cracks are presented in detail in ...
Page 85
... cracks was 2-3 times greater with 8 % air than with 4 % air . The depth of horizontal cracking increased as the amount of air entrainment was in- creased . The depth of horizontal cracks was greatest for the ordinary portland cement ...
... cracks was 2-3 times greater with 8 % air than with 4 % air . The depth of horizontal cracking increased as the amount of air entrainment was in- creased . The depth of horizontal cracks was greatest for the ordinary portland cement ...
Page 87
... cracks at some distance from the surface . For both mechanisms , the zone of saturation extends more deeply into the specimen when permeability is greater , so horizontal cracks develop at a greater depth . If the permeability ...
... cracks at some distance from the surface . For both mechanisms , the zone of saturation extends more deeply into the specimen when permeability is greater , so horizontal cracks develop at a greater depth . If the permeability ...
Contents
APPLICATION OF AUTOMATED IMAGE ANALYSIS TO | 3 |
A REEVALUATION OF HARDENED CEMENT PASTE | 13 |
AN APPROACH TO QUANTITATIVE IMAGE ANALYSIS | 23 |
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1995 Materials Research air voids andesite bond strength bulk cement paste C-S-H gel calcium calcium hydroxide carbonate cement paste cementitious chemical clinker composite compressive strength concentration Concr crack crystals cured curve debonding density diameter dielectric diffusion dynamic modulus effect elastic elastic moduli embedded length energy ettringite experimental fiber reinforced fibres fly ash fracture surface Garboczi grains groundmass hardened hydration products image analysis increase interfacial transition zone interfacial zone load Materials Research Society matrix measured microcracks microscope microstructure mixes modulus mortar observed parameters phase pore size distribution porosity porous portland cement portlandite Proc pullout rock samples sand scanning electron microscope shear shown in Figure shows silica fume solution specimens stress structure sucrose superplasticizer Symp Table tensile thaumasite thickness values volume fraction w/c ratio water-cement ratio wood fiber yarn zeolite