Geopolymer is a new type of sustainable material which is produced by using industrial by-product. Recent articles showed that geopolymer materials have good machining property. However, the machining optimization only covered on natural fly ash geopolymer by using turning operation. Besides, the rubberised fly ash geopolymer (RFAG) has not been well investigated. Therefore, new research about machining on RFAG is needed to be carried out.
