Ultra High Early Strength Self-compacting Mortar Based on Sulfoaluminate Cement and Silica FumeThe influences of silica fume and aluminum sulfate on hydration process of sulfoaluminate cement were carried out by ring flow,setting time,hydration heat,XRD and DTG analyses.In addition,mortar mixtures with...
Although cement stabilization/solidification (S/S) is used extensively to remediate heavy metal (HM)-contaminated soils, it may show limited success in some applications. Hence, this study investigated the efficacy of silica fume (SF) as an industrial by-product in enhancing the performance of cem...
The existence of CH crystals for higher percentages of silica fume (up to 30%) for further reaction at later ages was observed by XRD results. Moreover, combined use of silica fume and lime-water ensures a high alkaline media around steel bars from the moment of ingredients mixing as long...
In this paper the properties and the hydration of Portland cement pastes containing zeolitized silica fume were studied. Hydrosodalite was obtained by zeolitization of silica fume. XRD, DSC, SEM and energy-dispersive X-ray spectroscopy were used as inves
The compositions of the mixes were investigated through the use of various microstructural analysis techniques, including scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (SEM-EDS), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and Fourier-transform infrared ...
It explored the workability and mechanical properties of both binary systems (igneous rock–cement) and ternary systems (igneous rock–silica fume–cement). Microscopic techniques including X-ray diffraction (XRD), thermogravimetric analysis–differential thermal analysis (TG-DTA), scanning electron ...
At the same time, this hexagonal structure did not disappear with small group of ion from silica fume added to MCM-41. The SEM and TEM images are in accordance with the XRD results in explaining the hexagonal structure in NH2-MCM-41. The inner assembly details of MCM-41 and NH2-MCM-...
to Industrial Hygienists. Industrial Hygiene Analysis is what we do.Our expertise in providingDPM Analysis (Organic Carbon – Elemental Carbon),Respirable Silica / Respirable Quartz Analysis by XRD,Metal Analysis (Welding Fume Analysis)andNickel Speciation Analysishas made us a leader in the industry...
silica fumeC-S-Hpozzolanic reactivityXRDultra high performance concreteDune sand is a very abundant material in south of Algeria. Its high silica content gives a partial pozzolanic reactivity due to its crystalline state. This paper investigates the evolution of cement hydration based on a binary ...
The best sulfate resistance performance for both compressive and flexural strengths was taken from the concretes containing 10% fly ash and 5% silica fume. Internal structure was examined through SEM images, EDS and XRD measurements in the control group and those containing mineral at a ratio of ...