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 349
... specimens were tested . Cement - aggregate interfaces were cleaved by inserting a razor blade into the aggregate - cement bond at the interface . The bond for specimens without PVA separated very easily without any debris from the ...
... specimens were tested . Cement - aggregate interfaces were cleaved by inserting a razor blade into the aggregate - cement bond at the interface . The bond for specimens without PVA separated very easily without any debris from the ...
Page 394
... specimens . The four - point bend specimen shows a highly tortuous crack . Secondary cracking is seen along with the main crack . 4. DISCUSSION To explain the fracture behavior ( stable or unstable ) of the concrete specimens of ...
... specimens . The four - point bend specimen shows a highly tortuous crack . Secondary cracking is seen along with the main crack . 4. DISCUSSION To explain the fracture behavior ( stable or unstable ) of the concrete specimens of ...
Page 395
... specimen , the crack will grow in an unstable manner and the specimen will fail catastrophi- cally as observed in the case of the mortar specimens . If material absorbs the released energy by debonding the particles at the aggregate ...
... specimen , the crack will grow in an unstable manner and the specimen will fail catastrophi- cally as observed in the case of the mortar specimens . If material absorbs the released energy by debonding the particles at the aggregate ...
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