Bradley Pather's research while affiliated with University of Johannesburg and other places

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Publications (2)

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Effects of aggregate types on acid corrosion attack upon fly – Ash geopolymer and Portland cement concretes – Comparative study
Article
  • Dec 2021
In this study, effects of the siliceous granite and calcareous dolomite aggregate types on the acid resistance behaviours of fly ash - geopolymer (FA - GPC) and Portland cement (PC) concretes, were investigated and compared. The granite and dolomite aggregate types used were selected as these represent extremes of excellent and poor acid resistance...
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Citations

... The compressive strength loss of fly ash-based geopolymer concrete in H 2 SO 4 was about 10-12 times lower than that observed in PC concrete. [9]. These findings were attributed to OPC's higher permeability and CaO content, resulting in the formation of gypsum and ettringite, leading to dimensional instability. ...
Reference: Acid-resistance of one-part geopolymers: Sodium aluminate and carbonate as alternative activators to conventional sodium metasilicate and hydroxide
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