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 67
... ETTRINGITE FORMATION M.C. LEWIS * , KAREN L. SCRIVENER * AND S. KELHAM ** * Imperial College of Science , Technology and Medicine , London , U.K ** Blue Circle Industries PLC , Kent , U.K ABSTRACT This paper reports some preliminary ...
... ETTRINGITE FORMATION M.C. LEWIS * , KAREN L. SCRIVENER * AND S. KELHAM ** * Imperial College of Science , Technology and Medicine , London , U.K ** Blue Circle Industries PLC , Kent , U.K ABSTRACT This paper reports some preliminary ...
Page 71
... ettringite without undergoing expansion . Table II . Relative amounts of ettringite in the mortars cured at 20 ° C Characterisation 3 % SO3 4 % SO3 5 % SO3 5 % SO3 Time + KOH ( 1 ) 0.55 1.97 1.59 2.52 ( 2 ) 0.35 1.46 1.03 1.66 ( 3 ) ...
... ettringite without undergoing expansion . Table II . Relative amounts of ettringite in the mortars cured at 20 ° C Characterisation 3 % SO3 4 % SO3 5 % SO3 5 % SO3 Time + KOH ( 1 ) 0.55 1.97 1.59 2.52 ( 2 ) 0.35 1.46 1.03 1.66 ( 3 ) ...
Page 185
... ettringite . EDS analyses indicate that the crystals do not have end member compositions , but are solid solutions . All ettringites contained some Si , and all thaumasites contained some Al . Figure 3c : higher magnification view of ...
... ettringite . EDS analyses indicate that the crystals do not have end member compositions , but are solid solutions . All ettringites contained some Si , and all thaumasites contained some Al . Figure 3c : higher magnification view of ...
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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Common terms and phrases
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