1. Uysal M, Akyuncu V (2012) Durability performance of concrete incorporating class F and class C fly ashes. Constr Build Mater 34:170–178
2. Lomborg B 2007 Measuring the real state of the world, the skeptical environmentalist, pp 138
3. Uche OAU (2008) Influence of recycled concrete aggregate (RCA) on compressive strength of plain concrete, continental. J Eng Sci 3:30–37
4. Uche OAU, Adamu M, Bahuddeen MA (2012) Influence of millet husk ash (MHA) on the properties of plain concrete. J Epistemics Sci Eng Technol 2(2):68–73
5. Malhotra VM 2002 Introduction: sustainable development and concrete technology. Concr Int, 24(7)