... Pham Duy Anh; Master Nguyen Loc Kha Investigation in materials using for manufacture of UHSC Journal of Transportation, No 07, July 2011; Prof Dr Pham Duy Huu; Dr Pham Duy Anh; Dr Nguyen Thanh Sang; ... Duy Anh, Master Nguyen Loc Kha: Investigation in development of UHSC in bridge structures – Journal of Science and Tech in Transportation, No 28, Dec 2009; Prof Dr Pham Duy Huu; Dr Nguyen Thanh ... to mix UHSC are PC40 But Son cement, quartz sand and quartz powder ground from quartz rock of Thanh Son – Phu Tho, silica fume and superplasticiser supplied from Sika Viet Nam, Dramix steel fibre...