This paper evaluates a type of geopolymer concrete that uses hemp fibres as natural aggregate due to the various advantages offered by these woody materials. These include ease cultivation and processing their use in essential structure concretes used for green construction purposes. The sampling study was prepared using an environmentally friendly inorganic binder, based on geopolymerization r...

Rheology plays a crucial role in the field of extrusion-based three-dimensional (3D) printing, particularly context hydrogels. Hydrogels have gained popularity 3D printing due to their potential applications tissue engineering, regenerative medicine, and drug delivery. The rheological properties material significant impact on its behaviour throughout process, including extrudability, shape rete...

Nanoclays (NC) can serve as thixotropy modifiers for fresh concretes, and show potential to meet the rheological demands of 3D concrete printing. Here, we propose a dry dispersion technique that produces NC-coated cement compare conventional methods dispersion. Pastes incorporating NC were tested via shear rheology, scanning electron microscopy, isothermal calorimetry. Dry was found be most eff...

Rheological characterization of complex fluids subjected to cyclic shear-rate sweep often exhibits hysteresis. Since both viscoelastic and thixotropic materials show hysteresis loops, it is important understand distinguishing features (if any) in the same shown by either. Lately, there has been substantial work that attempts relate area enclosed loop with manner which shear rate varied cycle, o...

In this study, the effect of substitution feldspar by soda-lime glass waste (SLGW), on rheological behavior, thermal, physical-mechanical and structural properties sanitary-ware vitreous china (VC) bodies, has been evaluated. The findings show a positive behavior slip, to viscosity, thixotropy, density casting process. Indeed, during firing stage at 1230°C, use 20 wt. % SLGW in composition VC i...

The addition of nanomaterials affects the workability cementitious composites by reducing free water available within mixtures. In order to address this issue, present study intends ground granulated blast furnace slag (GGBS) in materials containing graphene (G) and oxide (GO). An experimental program is considered measure fresh properties, compressive strength, service life composites. Dosages...

A high content of asphaltene and wax in crude oil leads to difficulties the recovery transportation due precipitation asphaltenes deposition waxes. Comb-like polymers were found be capable inhibiting aggregation crystallization In this work, comb-like bipolymers α-olefins/ultra-long chain (C18, C22 C28) alkyl acrylate synthesized characterized by FT-IR 1H NMR spectra. The results show that, for...

The effects of the electrolyte concentration and pH on the settling behaviour, floc sizes and rheological behaviour of kaolinite suspensions were investigated. The results show that the settling behaviour of kaolinite changes with the ionic strength and pH of the suspension. In the acidic pH range, (pH 2) particles settle in flocculated form regardless of electrolyte concentration, however, in ...

Thixotropy is the characteristic of a fluid to form a gelled structure over time when it is not subjected to shearing, and to liquefy when agitated. Thixotropic fluids are commonly used in the construction industry e.g., liquid concrete and drilling fluids , and related applications include some forms of mud flows and debris flows. This paper describes a basic study of dam break wave with thixo...

The rheological behaviour of aqueous suspensions of boehmite (AlO(OH)) modified with different Ce-salts (Ce(NO(3))(3), CeCl(3), Ce(CH(3)COO)(3) and Ce(2)(SO(4))(3)) was investigated at a fixed Ce/Al molar ratio (0.05). Freshly prepared boehmite suspensions were near-Newtonian and time-independent. A shear-sensitive thixotropic network developed when Ce-salts with monovalent anions were introduc...