Abstract:
Greener technologies and sustainable developments are currently among the main tools used by many industries in shaping the world for a better future. The construction industry that is known to have numerous negative impact on sustainability is now wide awake on sustainable measures which can aid in reducing its negative impact. In this work, green cement was produced from pyroprocessed clay (PC) at 800�C and mixed together with Portland cement. This paper presents both laboratory tests and some field applications of green cement application. Laboratory tests performed included setting times, compressive strength, and shrinkage. Field applications of the green cement are shown. Results from the work showed that well-proportioned greener cement gained strengths between 11% and 30% more than Portland cement at standard curing period of 3, 7, 14, and 28 days. However, in real statistical terms, there was no difference between Portland cement and green cement strength performance. Shrinkage from both total and autogenous tests also showed insignificant differences between the two cements. The study recommends the use of green cements with pozzolanic origin than only Portland cement as a way to maximize sustainability in building projects. � 2016 Mark Bediako et al.
Description:
Bediako, M., CSIR-Building and Road Research Institute, Kumasi, Ghana; Adobor, C.D., CSIR-Building and Road Research Institute, Kumasi, Ghana; Amankwah, E.O., University of Education, Winneba, Kumasi Campus, Kumasi, Ghana; Nyako, K., CSIR-Building and Road Research Institute, Kumasi, Ghana; Kankam, C.K., Civil Engineering Department, KNUST, Kumasi, Ghana