نتایج جستجو برای: natural pozzolana

تعداد نتایج: 481747  

Journal: :Indian Journal of Structure Engineering (IJSE) 2021

Concrete is the most commonly used building material due to its high strength, moldability, weather-resistant, and fire resistance, among other benefits. In recent years, there has been a growth in usage of Micro Silica fume. Through Ore sand Bridge building, records show that was concrete. These fabrics are not only environmentally sustainable, but they also have technological advantages on bo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم انسانی 1393

this studyinvestigated therelations between examinees’ academic knowledge and theirperformanceonreading section of ielts and toefl (ibt) through using generalizabilitytheory. g-theory was utilized to investigate the effects of subtest, test items, participants and academic background on the reliability of ielts and toefl (ibt) score. tosamplethe subjectsofthissurvey,a placement testwasadministe...

Journal: :Karadeniz fen bilimleri dergisi 2021

Pozzolanes are mineral additives that have been widely used in concrete production recently. The main purposes of pozzolana to provide economy and improve various properties concrete. In this study, obsidian which located Pasinler District Erzurum Province has high amount reserves the world with silica content, zinc slag occurring during metal, metal industry mainly Turkey capacity world, pozzo...

Journal: :Civil Engineering Journal 2021

The paper aims to study cellular concrete with a new approach of formulation without an autoclave, the use aluminum waste and incorporation mineral additions into sand evaluate its physical mechanical properties. In this experimental study, two types are prepared, based on crushed dune 15% slag 10% pozzolana, as replacement. An program was performed determine compressive strength at 28 days, de...

Journal: :Water 2022

Passive mine drainage treatment plants are the scene of many chemical and biological reactions. Here, establishment iron (Fe), arsenic (As), manganese (Mn) removal was monitored immediately after commissioning Lopérec (Brittany, France) passive water plant, composed aeration cascades settling ponds followed by pozzolana biofilters. Iron As were almost completely removed commissioning, while Mn ...

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