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 116
... mix proportions of concrete were : cement : sand : aggregate : 1.0 : 2.75 : 2.75 . The warm - press cell was used to prepare 0.75x1.0x2.75 - in bars , 2- in . cubes , and ø0.5 , ø0.75 , and ø1.0 - in . cylindrical specimens . Their mix ...
... mix proportions of concrete were : cement : sand : aggregate : 1.0 : 2.75 : 2.75 . The warm - press cell was used to prepare 0.75x1.0x2.75 - in bars , 2- in . cubes , and ø0.5 , ø0.75 , and ø1.0 - in . cylindrical specimens . Their mix ...
Page 247
... mix proportions ) , to make it possible to compare the results between the different mixes , and especially between ... ratio and the use of silica fume , inducing intense self - desiccation ( H.R. ≤ 80 % ) and very narrow pore network ...
... mix proportions ) , to make it possible to compare the results between the different mixes , and especially between ... ratio and the use of silica fume , inducing intense self - desiccation ( H.R. ≤ 80 % ) and very narrow pore network ...
Page 315
... Mix proportions and interface toughness ( á ) values Control 0 % SF 5 % SF * 10 % SF * W / ( C + SF ) 0.44 0.25 0.25 Sand / ( C + SF ) 2.75 2.75 2.75 σc ( MPa ) 46.4 70.4 82.9 * SF = Silica fume ; σ = compressive strength ; E = Young's ...
... Mix proportions and interface toughness ( á ) values Control 0 % SF 5 % SF * 10 % SF * W / ( C + SF ) 0.44 0.25 0.25 Sand / ( C + SF ) 2.75 2.75 2.75 σc ( MPa ) 46.4 70.4 82.9 * SF = Silica fume ; σ = compressive strength ; E = Young's ...
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