The objective of the current thesis is to apply atomistic simulation techniques to further the current knowledge of cementitious systems. Hydrated cement is a part of concrete which is one of the most widely used materials in the world. As such the production of cement is responsible for about 5-8% of global CO2 emissions. The optimization of the mechanical properties and durability of concrete...

Ternary cements are a promising option to further reduce CO 2 emissions and environmental impact from cement production. The current study investigates in detail the of water binder ratio (0.4, 0.5, 0.6) curing temperature (5, 20, 40 °C) on hydration kinetics ternary comprising clinker, slag limestone 50:40:10 mass ratio, respectively. results show that mainly affected degree slow reacting phas...

Cementing technology can effectively extend the life of coalbed methane surface drilling. The fluidity cement slurry during cementing is critical to quality. It an effective way improve quality by increasing and pumping efficiency paste adding dispersants. In this paper, effect naphthalene dispersant on hydration kinetics G-grade was investigated nuclear magnetic resonance. results show that in...

In situ pyroelectric calorimetry and spectroscopic ellipsometry were used to investigate surface reactions in atomic layer deposition (ALD) of zirconium oxide (ZrO2). Calibrated time-resolved ALD provides new insights into the thermodynamics kinetics saturating for tetrakis(dimethylamino)zirconium(IV) (TDMAZr) water. The net reaction heat ranged from 0.197 mJ cm−2 at 76 °C 0.155 158 °C, corresp...

The present study investigates the influence of limestone powder, fly ash, zeolite and their blends on some fresh hardened properties self-compacting (SC) mortars. Blends supplementary cementitious materials (SCMs) perform better than a single SCM in systems. motivations for include introduction novel SCMs like powders to provide efficient SC mortars potential alternatives ash period its short ...