نتایج جستجو برای: natural pozzolana

تعداد نتایج: 481747  

2016
Gabriel P erez Cristian Sol Albert Castell Luisa F. Cabeza

Sustainability trends for buildings require new construction systems to foster energy efficiency and environmentally friendly buildings. Green roofs are interesting construction systems because they provide both aesthetic and environmental benefits. This paper continues a long-term research in order to evaluate and improve the thermal behaviour and sustainability of extensive green roofs. Simul...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1394

learning english is very popular all over the world nowadays and it is considered a high prestigious language among citizens of different societies. one of the most important materials for learning a new language are textbooks. the debate that whether learning a new language is natural and neutral or ideological and influential on people’s worldviews, has always been of great importance.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مهندسی موادو متالورژی 1393

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

Journal: :Global Nest Journal 2023

<p>The amount and type of waste are increasing due to population growth. Many harmful materials have been in the atmosphere for a very long times. This causes crisis disposal thereby contributes environmental issues. Recycling concrete manufacturing not only offers resource producing top standard but also aids correctly addressing issue disposal. Due leftover ceramic powder's high resista...

Journal: :IOP conference series 2023

Abstract Infrastructure and industry have grown dramatically as a result of globalization urbanization. However, there are certain challenges, such meeting infrastructural needs that require large amount extraction natural aggregates disposal waste generated industrialization. Both these challenges an adverse impact on the environment. Deforestation, erosion, contamination nearby streams, incre...

Journal: :E3S web of conferences 2021

Prospects of application roller compacted concrete in hydro schemes Ukraine are considered. The number dams erected with is growing year after the world. Roller an especially dry mixture decreased content cement and increased pozzolana (fly ash). broad physico-mechanical peculiarities depend not only on its composition but also technology laying compacting dam. Rapid construction gravity use eq...

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