Main performance of the cement grouting materials made up by Portland cement(PC) and sulphoaluminate cement(SAC) was investigated in this program, a kind of exp
Fly ash and diatomite were mixed uniformly and ground within various time scale and fly ash/diatomite admixtures with variable particle sizes were obtained. Eff
3D city models associate a database of a city to a rigorous geospatial representation that is close to the visible reality by combining appearance, geometry, an