نتایج جستجو برای: natural pozzolana
تعداد نتایج: 481747 فیلتر نتایج به سال:
during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...
Background: Many tools and techniques have been recently adopted to develop construction materials that are less harmful friendlier the environment. New products can be achieved through recycling of waste material. Thus, this study aims use recycled glass bottles as sustainable materials. Objective: Our challenge is nano powder by addition or replacement weight cement for producing concrete wit...
INTRODUCTION The Italian national survey on natural radioactivity in dwellings showed that in the central and southern part of Italy the widespread use of building materials of volcanic origin (tuff and pozzolana) has two important consequences: high levels of radon concentration indoors and the presence of elevated γ dose rates (1,2,3). The significant role of some building materials as a sour...
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
The durability of the self compacting concrete is one prominent areas concern in recent years since it has become prevalent due to its ease handling construction industries. However, there a lack detailed study M-sand with polypropylene fibres literature. In this paper, made by Portland pozzolana cement natural sand and M-sand, different percentages volume fraction (0%, 0.1%, 0.15% 0.2%) thorou...
The interfacial transition zone (ITZ) has a significant negative impact on the structural performance of concrete. This can be ameliorated by introducing mineral additions into In this study, different forms (degree circularity) coarse aggregates and three contents (10 %, 15 % 20 %) addition (natural pozzolan) were used to prepare ordinary article aims determine optimal effective mixture (the b...
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