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International Journal of Concrete Structures and Materials

Table 3 Portlandite content in Na2SO4 solution exposed cement paste samples (%)

From: Examination of sulfate resistance of nano-alumina added ordinary Portland cement paste, focusing on the two different crystallinity of nano-aluminas

Sample labels

Na2SO4 solution exposure

Zero-day

28 days

91 days

180 days

OPC

10.61

12.05

11.84

11.72

OPC-A

10.24

11.35

11.10

10.94

OPC-G

9.62

11.19

10.57

10.04

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