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 87
... permeability is greater , so horizontal cracks develop at a greater depth . If the permeability coefficient is very low , horizontal cracks may occur only at very shallow depths or not at all . Thus it is likely that the depth at which ...
... permeability is greater , so horizontal cracks develop at a greater depth . If the permeability coefficient is very low , horizontal cracks may occur only at very shallow depths or not at all . Thus it is likely that the depth at which ...
Page 444
... permeability of the interfacial transition zone as a function of RH . Results for concrete In Table II the moisture permeabilities ( 8 ) are shown as functions of the relative humidity for specimens with a height of about 100 mm . The ...
... permeability of the interfacial transition zone as a function of RH . Results for concrete In Table II the moisture permeabilities ( 8 ) are shown as functions of the relative humidity for specimens with a height of about 100 mm . The ...
Page 447
... permeability . When RH is over about 80 % the smallest aggregates ( the ITZ ) are more permeable than the cement paste . The higher RH is , the more permeable the aggregates are . In Figure 3 the measured 8 , of cement paste and ...
... permeability . When RH is over about 80 % the smallest aggregates ( the ITZ ) are more permeable than the cement paste . The higher RH is , the more permeable the aggregates are . In Figure 3 the measured 8 , of cement paste and ...
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