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The Effect of Ground Granulated Blast Furnace Slag Content on Mechanical Properties of Polypropylene Fibre Engineered Cementitous Composites

Nur Farah Hanum Husain, Siong Wee Lee


This study investigates the effects of ground granulated blast furnace slag (GGBS) content on mechanical properties of engineered cementitious composites (ECC) made of polypropylene (PP) fiber and local sands. Three different percentages of GGBS (50%, 60% and 70%) were used in the same series of PP fiber content of ECC mixtures. PP fiber varied at 1.5%, 2.0% and 2.5% in volume fraction. Compression tests and three-point bending tests were carried out after 28 days of curing. Test results demonstrated improved compressive strength and flexural behaviour of ECC compared to normal concrete. The effects of GGBS content in the performance of compression and flexural are discussed. It can be concluded that the use of the high GGBS content (up to 70%) yielded ECC with the highest compressive strength. Meanwhile, the greatest flexural behaviours are exhibited by ECC with 50% and 60% of GGBS when the fiber content at 2.5% in volume fraction.


ECC, GGBS, fiber, compression test, flexural test.

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