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This paper compares the durability properties (HVFA) cement and ordinary Portland cement (OPC). The susceptibility to durability issues was investigated through the water absorption test using 28-day-old samples. Durability against chemical attacks was investigated through sulphuric 1-year-old samples. The results indicated that APC occupies a and greater resistance than OPC for sulphuric acid attack and chloride ion penetration. Chemical and microstructural reasons for the above behaviours are presented. A key index of durability performance is the free calcium hydroxide available and/or generated during cement hydration and durability exposure. Performance Criteria for Concrete Durability Design and development of alkali pozzolan cement (APC). Construction and Building Materials 68: 426-433. sustainability. PhD thesis Australia. 4 th Annual Paper Meet and 1st Civil Engineering Congress in situ test methods for biogenic sulfuric acid corrosion of concrete. Cement and Concrete Research 30(4): 623-634.

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