Aspects of the sulfate resistance of steelwork slag cements
作者： Antje Duda
DOI: 10.1016/0008-8846(87)90001-9
关键词:
摘要: Cement mixes were prepared by intergrinding portland cement clinker (PC), granulated blast furnace slag (BF) and two LD slags (LDI, LDII) in varying proportions. On water-cured mortar paste specimens the compressive strength, pore size distribution Ca(OH)2 content determined. Corresponding exposed to sulfate attack (CaSO4, MgSO4, Na2SO4) expansion variation of strength monitored. The results show all BF-LD-PC BF-LD cements be “sulfate” resistant which correlates well with their decreased capillary volume low contents. Xray analysis SO4-bearing phases indicate no clear correlation between ettringite contents observed degree corrosion. Besides, chemical/mineralogical composition exerts a distinct influence on hydraulic properties.
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