John Tristan Kevern

Effects of Chemical Admixture on Flow and Strength Properties of Calcined Clay Used as a Supplementary Cementitious Material

Mark Bediako & John Tristan Kevern · Current Journal of Applied Science and Technology · 2015

Well-proportioned cement-based materials create durable, long-lasting infrastructure which benefit society. However lack of knowledge, availability, and interest result in many West African, Asia, and South American countries using natural or modified pozzolans without chemical a...