Producing limestone powder requires comparably far less energy than the production of ordinary Portland cement (OPC), making it a promising sustainable solution for partial replacement OPC in concrete. Lower could be translated into lower environmental impact and cost, which are two pillars sustainability resulting However, question remains if replacing with larger percentages would compromise ...

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 ...

While high volume fly ash (HVFA) concrete mixtures are attractive from a sustainability viewpoint, they are sometimes plagued by long delays in finishing, producing a performance that is unacceptable to contractors. In this paper, isothermal calorimetry studies are conducted to examine excessive retardation in HVFA mixtures based on both Class C and Class F fly ashes. In addition to quantifying...

We introduce a general purpose penetrator, fitted with a heater, for measuring temperature and thermal diffusivity. Due to its simplicity of deployment and operation the penetrator is well suited for remote deployment by spacecraft into a planetary regolith. Thermal measurements in planetary regoliths are required to determine the surface energy balance and to measure their thermal properties. ...

The article shows the relation between sustainability and cement manufacture that can be obtained by replacement of clinker with limestone additive. This decreases use energy resources reduces CO2 emissions in production. issue partial Portland substitution finely ground production market-oriented types type CEM II is solved on plant PJSC "Ivano-Frankivsk Cement". indexes physical-mechanical te...