Effects of expanded polystyrene (EPS) particles on fire resistance, thermal conductivity and compressive strength of foamed concrete

Utilization of fly ash cenosphere as lightweight filler in cement-based composites – A review

Comparison between the effects of phosphorous slag and fly ash on the C-S-H structure, long-term hydration heat and volume deformation of cement-based materials

Loess stabilization using cement, waste phosphogypsum, fly ash and quicklime for self-compacting rammed earth construction

In this study, the super-fine ground granulated blast furnace slag was obtained by wet grinding (i.e. WGBBS), and an attempt to activate the super-fine ground granulated blast furnace slag by sodium sulfate (SS) and sodium carbonate (SC) was made. SS/SC-activated WGGBS samples were prepared and cured at the room temperature. The compressive strength at the age of 3 d, 7 d, 28 d, and 56 d was tested. Hydration heat was assessed, and micro structure and hydrates were also characterized with XRD, TG-DTG, SEM-EDS, and NMR; the pore structure was assessed with MIP. The results showed that SS and SC efficiently activated the hydration of WGGBS with D50 = 3.87 μm at the room temperature, and such high activating efficiency of SS and SC under room temperature was seldom reported in the literature. The mechanism behind was mainly because of the super-fine particles of slag with greater amounts of hydration points, which were produced in the process of wet grinding. Difference in activating efficiency between SS and SC was mainly because the anionic groups acted as different roles in hydration process: SS could induce the formation of ettringite while SC could induce the formation of calcite. Such results were expected to provide guidance on designing weak base-activated slag system.

Compressive strength and hydration process of wet-grinded granulated blast-furnace slag activated by sodium sulfate and sodium carbonate

Effects of nano-SiO2 on early strength and microstructure of steam-cured high volume fly ash cement system

Effect of sodium tripolyphosphate on adsorbing behavior of polycarboxylate superplasticizer

Effects of drying techniques on the crystal structure and morphology of ettringite

Phosphate is usually considered as an excellent retarder in cement-based materials. It is often thought that the mechanism behind this excellent retarding effect is attributed to the precip...

Effect of the Adsorbing Behavior of Phosphate Retarders on Hydration of Cement Paste

Utilization of waste from alumina industry to produce sustainable cement-based materials

Min Liu

Papers

Effects of nano-SiO2 on early strength and microstructure of steam-cured high volume fly ash cement system

Effect of sodium tripolyphosphate on adsorbing behavior of polycarboxylate superplasticizer

Effects of drying techniques on the crystal structure and morphology of ettringite

Effect of the Adsorbing Behavior of Phosphate Retarders on Hydration of Cement Paste

Utilization of waste from alumina industry to produce sustainable cement-based materials