Although no differences in qualitative parameters were reported between baseline and the period after 10 years, acceptable scores for marginal discoloration after 10 years were seen more frequently in the dual-cured than in the chemically cured cement group (58% versus 78%) [ 88].
Wood squeezings, or lignin liquor, is used in curing cement.
Cooke et al. (1988) examined viscoelastic parameters for both flowing and curing cement slurries.
Moreover, the solubility of Balcp19k amyloid deposits in guanidine hydrochloride and urea was same as that of the cured cement.
The setting time, workability, compressive strength, (SiO2 + Al2O3)reactive content and free alkali content of cured cement samples were determined.
Moreover, this research carefully investigates the effect of the particle size of crystalline silica to the compressive strength, porosity and permeability of the cured cement.
This paper aims to evaluate the influence of Limestone filler (LF) content and fineness on the hydration kinetics and strength of steam cured cement mortars and pastes.
First of all, cured cement paste samples were immersed in brine solution with specific chemical compositions for 60 d.
Experimental results showed that GO surface treatment slightly improved compressive strength of wet cured HVFA mortar and dry cured cement mortar while it significantly reduced the water absorption of wet cured HVFA mortar and the gas permeability of both wet cured and dry cured cement mortars.
Workers from Halliburton who had just pumped cement into the well to temporarily seal it off were well aware of the potential hydrate hazards, says Bea. Halliburton just last year had developed strategies to avoid having the heat of curing cement decompose any nearby hydrates and trigger a kick, he says.
The average compressive strength of the 2.5-h autoclaved cement paste with 30% ground sand displays a value equivalent to that of the 28-day normally cured cement paste without ground sand.
