...Meili Meng; Zhanglan Chen; Fuming Wang The dielectric properties of cement concrete are not only related to the dielectric properties and volume ratio of each component, but also related to frequency and temperature. In order to analyse these influencing factors, a dielectric constant test was done...

...). This formulation was called FBJ. The samples were subjected to tests for density, rheology, free water, settling, thickening time, compressive strength (CS), fluid loss, porosity and permeability, along with microscopic photography and computed tomography scanning. Compared with other drilling cements, the FBJ...

... cement did not influence the hydration reaction at the early age. This conclusion was verified by the thermometry test for hydration temperature. Figure 1 shows the scanning electron microscopy (SEM) images of CNTs, which appear poorly dispersed, forming large agglomerates and bundles. Their specific...