06

2021.01

On January 16, The Henan Provincial Department of Industry and Information Technology, The Development and Reform Commission, The Department of Science and Technology, and The Department of Finance jointly issued a notice which is identify Henan Provincial New Industrial Imaging Technology Innovation Center and Henan Provincial High-Performance Aluminum-based New Material Innovation Center , Henan...

12

2020.12

A research team composed of Ph.D student Kento Katairi and Associate Professor Masayoshi Ozaki of the Graduate School of Engineering, Osaka University, Japan, and Professor Toruo Iriya of the Research Center for Deep Earth Dynamics of Ehime University, and others, have determined the high-speed deformation of nano-polycrystalline diamond The intensity of time. The research team sintered crystallit...

07

2020.11

Concrete floor is a kind of integral ground that uses cement and stone particles as the main material. In the course of China's ground development, it has successively experienced such forms as terrazzo floor, fair-faced concrete floor, and colored wear-resistant floor. 1. Still fashionable terrazzo floor Terrazzo has the strength, wear resistance and durability of natural stone, and it is smooth,...

06

2020.11

Ancient Roman Concrete  3rd century BC The origin of concrete can be traced back to ancient Rome in the 3rd century BC. The ancient Romans accidentally discovered that natural volcanic ash added into natural sandstone and limestone and mixed them together to form mortar. After hardening, it had high strength and can be used as filling material for masonry vault and wall. In the historical rel...