TiB/Ta-W composites were fabricated by powder *** isothermal oxidation behavior of composites at 700℃,800℃and 900℃in air were *** reaction products in the oxidation layer were examined by *** cross-sectional micros...
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TiB/Ta-W composites were fabricated by powder *** isothermal oxidation behavior of composites at 700℃,800℃and 900℃in air were *** reaction products in the oxidation layer were examined by *** cross-sectional microstructure of the oxidation layer were analyzed by *** results show that TiB reacted with Ta and oxygen in surface of Ta particles to form
To develop high ductility cementitious composites(HDCCs)for repairing hydraulic discharge structures,the effect of water-binder ratio,polyvinyl alcohol(PVA)fiber content,and fly ash content on the tensile properties o...
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To develop high ductility cementitious composites(HDCCs)for repairing hydraulic discharge structures,the effect of water-binder ratio,polyvinyl alcohol(PVA)fiber content,and fly ash content on the tensile properties of HDCCs was *** results show that with increase in water-binder ratio and/or fly ash content,the ultimate tensile strain of HDCC increases gradually,while the ultimate tensile
This study evaluates the effect of sulphoaluminate cement(SAC)content on the performance of high-ductility cementitious composite(HDCC)as repair *** prepare the HDCCs,Portland cementwas partially replaced with 10%,15%...
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This study evaluates the effect of sulphoaluminate cement(SAC)content on the performance of high-ductility cementitious composite(HDCC)as repair *** prepare the HDCCs,Portland cementwas partially replaced with 10%,15%,or 20%rapid-hardening *** compressive and flexural strength developments and tensile properties of the SAC-containing HDCCs were *** microscopic mechanism by which SAC affects the macroscopic performance of HDCC was examined by
This article intends to quantify the increment of hydration heat in fly-ash cement blended paste(FA-C)than that in neat cement *** this aim,the pozzolanic effect heat is inducted to explain the heat *** pozzolanic eff...
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This article intends to quantify the increment of hydration heat in fly-ash cement blended paste(FA-C)than that in neat cement *** this aim,the pozzolanic effect heat is inducted to explain the heat *** pozzolanic effect heat in FA-C is composed by the pozzolanic reaction heat of fly-ash and the increment hydration heat of cement component due to a higher hydration degree caused by the addition
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