2017 Volume 71 Issue 1 Pages 302-307
Cement industry is one of the energy-intensive industries. Though Japanese cement industry has achieved top-class energy efficiency in the world, the development of the further energy saving technology is needed from the view point of global environmental protection such as the reduction of carbon dioxide and fossil fuel consumption. In the past study, we reported the possibility that the burning temperature of clinker could be lowered 100 degrees by adjusting major mineral composition, namely increasing C4AF and decreasing C2S instead. And properties of the cement used low burning-temperature type clinker and the concrete used the cement were at the same level as Ordinary Portland Cement. In this study, we manufactured Blast Furnace Slag Cement Type B（BB）using low burning-temperature type clinker by actual finish mill, and evaluated properties of cement, mortar and concrete. As a result, we confirmed that cement and mortar properties of setting, strength development and chemical durability of BB using low burning-temperature type clinker were at the same level as BB using Ordinary Portland Cement clinker. And, although drying shrinkage of BB using low burning-temperature type clinker was slightly bigger than BB using Ordinary Portland Cement clinker, other properties of concrete were at the same level as BB using Ordinary Portland Cement clinker.
