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Tytuł:
A selection of compositions of high strength and low thermal conductive energy efficient concretes with local materials
Autorzy:
Nareklishvili, Tea
Dzotsenidze, Medea
Sheklashvili, Erekle
Powiązania:
https://bibliotekanauki.pl/articles/31342517.pdf
Data publikacji:
2023
Wydawca:
Politechnika Częstochowska
Tematy:
energy-efficient concrete
natural zeolite
inert materials
beton energooszczędny
zeolit naturalny
materiały obojętne
Opis:
In the world, inert materials are used to obtain high-strength concrete, the volume weight of which is quite large. We cannot get concrete with low thermal conductivity from such inert materials. Therefore, in order to obtain high-strength, environmentally friendly and energy- -efficient concrete, it was necessary to investigate local inert materials. The subject of research is natural zeolite and recycled ceramic waste, as well as polystyrene as an additive and micro-silica in cement mass to achieve penetrating waterproofing. The mentioned materials are obtained in Georgia in sufficient quantity, which allows us to produce energy-efficient concrete of high strength, low thermal conductivity, as well as sound and waterproofing. It is safe for both people and the environment. The correct mix will be provided by materials found in the local market, and the desired and low energy efficiency ensures the production of an environmentally friendly concrete.
Źródło:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2023, 12; 33-40
2299-8535
2544-963X
Pojawia się w:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical characteristics of Portulaca grandiflora-doped Cellulose using the spray pyrolysis technique
Autorzy:
Alaridhee, Tahseen
Obeed, Mohammed T.
Malk, Fatima H.
Dhahi, Baheya A.
Powiązania:
https://bibliotekanauki.pl/articles/27315701.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
green materials
optical properties
natural dye
biopolymer
spray pyrolysis technique
Opis:
Thin films were prepared based on cellulose polymer doped with different ratios of natural dye derived from Portulaca grandiflora concentrations. The polymer and natural dye were extracted from eco-friendly materials - the cell walls of millet husks and Portulaca grandiflora, respectively. The spray pyrolysis technique was applied to prepare thin film samples to control the film morphology and reduce the roughness of the surface. Optical microscope and Fourier transform infrared were used to analyse structural, morphological, and functional groups for all samples, respectively. The peak absorbance, extinction coefficient, optical bandgap, Urbach energy, and optical conductivity for the thin films were determined using ultraviolet-visible spectroscopy. The results show an enhancement in the optical characteristics when the natural cellulose is doped with a dye. Doping cellulose with 5% P. grandiflora has led to a considerable reduction in the energy bandgap (to 1.95 eV), compared to the sample doped with 1%.
Źródło:
Opto-Electronics Review; 2023, 31, 3; art. no. e146553
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural filler based composite materials
Autorzy:
Nayeeif, A.A.
Hamdan, Z.K.
Metteb, Z.W.
Abdulla, F.A.
Jebur, N.A.
Powiązania:
https://bibliotekanauki.pl/articles/24200565.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
polyester resin
composite natural materials
tensile
bending
żywica poliestrowa
kompozytowe materiały naturalne
rozciąganie
gięcie
Opis:
Purpose: The first goal is to get rid of waste and reduce environmental pollution, and the other goal is to investigate the effect of these fibres on properties (resistance of composite materials for bending and tensile testing) of polyester and use them in applications. Also, The moisture environment effect on the properties of composite materials was studied. Design/methodology/approach: It uses natural fibres, which are considered waste, namely eggshell and sawdust with polyester. Several samples were prepared with different weight percentages (30% and 40%), and their mechanical properties were studied and immersed in water for 15 days. And studying the effect of water on these properties. It was found that it is possible to use these fibres (waste) with polyester and benefit from them. It was found that when adding fibres to polyester, the tensile strength decreases, but the bending increases the strength. Finally, it was found that when the samples are immersed in water, the material weakens, and its mechanical properties decrease. Findings: It can be noticed that adding natural fibres by 40% and 30% improved the mechanical properties of polyester in the bending test, where the bending test increased with increased volume fraction of fibre. It can be noticed that adding natural fibres by 40% and 30% decreased the mechanical properties (tensile strength) of polyester in a tensile test. When the natural composite materials were treated with water for 15 days, water decreased the mechanical properties in bending and tensile test. Research limitations/implications: One of the limitations of this research that was found through the work is that when increasing the weight ratios of the fibres added to polyester leads to the failure of polyester, so we recommend using lower weight ratios of fibre. Practical implications: One of the limitations of this research that was found through the work is that when increasing the weight ratios of the fibres added to polyester leads to the failure of polyester, so we recommend using lower weight ratios of fibre. Originality/value: The original value of this research is the use of fibres that are considered waste, their reuse, and utilization in some applications that do not require composite materials with high mechanical properties.
Źródło:
Archives of Materials Science and Engineering; 2022, 116, 1; 5--13
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Behavior of Glulam Beams Strengthened in bending with BFRP Fabrics
Autorzy:
Wdowiak-Postulak, Agnieszka
Świt, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2051725.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
glued laminated timber
natural materials
BFRP fabric
reinforcements
bending strength
drewno klejone warstwowo
materiały naturalne
BFRP
wzmocnienia
Opis:
The article presents results of an experimental studies on reinforcement of pine beams made from glued laminated timber with subsurface basalt fibers (BFRP). An experimental research program was presented, in which the bending strength of glued laminated timber of middle and lower quality class was increased after using BFRP basalt fabrics. Thanks to the use of BFRP reinforcement, an average load capacity increased by 47% and stiffness by 6% in comparison to non-reinforced elements. Based on the research, it was found that the use of BFRP basalt fabrics is an effective method for strengthening damaged wooden elements. Thus, it is an environmentally friendly method of improving the static work of structural elements by combining wood with other natural materials such as basalt fiber reinforced polymers.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 2; 1-14
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Correlation of manufacturing defects and impact behaviors of kenaf fiber reinforced hybrid fiberglass/Kevlar polyester composite
Korelacja defektów produkcyjnych iodporności na uderzenie poliestrowego kompozytu hybrydowego włókno szklane//Kevlar wzmocnionego włóknem kenaf
Autorzy:
Suriani, M. J.
Sapuan, S. M.
Ruzaidi, C. M.
Naveen, J.
Syukriyah, H.
Ziefarina, M.
Powiązania:
https://bibliotekanauki.pl/articles/1789782.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
kompozyty hybrydowe
wady produkcyjne
dobór materiałów
kompozyty z włókien naturalnych
skaningowa mikroskopia elektronowa
hybrid composites
manufacturing defects
materials selection
natural fiber composites
scanning electron microscopy
Opis:
In this study, the impact properties of kenaf fibre reinforced hybrid fiberglass/Kevlar polymeric composite was investigated. In this study, a new fiber arrangement based on kenaf bast fiber as reinforcement to the hybrid fiberglass/Kevlar fiber and polyester as matrix used to fabricate the hybrid polymeric composite. Five different types of samples with different of kenaf fiber content based on volume fraction (0, 15, 45, 60 and 75%) to hybrid fiberglass/Kevlar polymer composites were manufactured. 0% of kenaf fiber has been used as control sample. The results showed that hybridization has improved the impact properties. These results were further supported through SEM micrograph of the manufacturing defects of the polymer composite. Based on literature work, manufacturing defects that occurs in composite system reduced the mechanical properties of the material. Therefore, in this research the correlation of impact behaviors and manufacturing defects of kenaf fiber reinforced hybrid fiberglass/Kevlar polymeric composite has been successfully done. As conclusion, the highest manufacturing defects determined in the composites during the fabrication significantly lowest the results of impact behavior.
Zbadano udarność hybrydowego kompozytu polimerowego na osnowie żywicy poliestrowej napełnionej włóknami szklanymi i kevlarowymi wzmocnionego włóknem łykowym kenaf. Wytworzono pięć próbek różniących się zawartością włókien kenafu (0, 15, 45, 60 i75% obj.) Próbkę kontrolną stanowił kompozyt z 0% obj. udziałem włókien kenaf (0%). Wykazano, że hybrydyzacja wpłynęła na poprawę właściwości udarowych wyjściowego kompozytu. Wyniki potwierdzono analizą SEM defektów produkcyjnych otrzymanego kompozytu. Stwierdzono, że zachodzi korelacja między wytrzymałością na uderzenie awadami produkcyjnymi badanego hybrydowego kompozytu poliestrowego wzmocnionego włóknami kenaf. Powstałe podczas produkcji wady produkcyjne wistotnym stopniu pogarszają właściwości udarowe kompozytów.
Źródło:
Polimery; 2021, 66, 1; 30--35
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of the Mechanical Behavior of Composite Materials with Different Binders Based on Local Plant Fibers Alfa and Diss
Autorzy:
Belkhir, Zohra
Merzoud, Mouloud
Powiązania:
https://bibliotekanauki.pl/articles/2051547.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
composite materials
mechanical properties
natural fibers
Alfa
Diss
cement
clay
materiały kompozytowe
właściwości mechaniczne
włókna naturalne
glina
Opis:
Concerned about the environmental and economic impact, composite materials are increasingly used in the construction sector. Indeed, the use of plant fibers as reinforcement in construction materials have been the subject of several researches in recent years; the main motivation is the weight gain combined with high mechanical characteristics. The objective of this research concerns the study of the physicomechanical properties of composite materials with cement and clay matrices reinforced with Alfa and Diss fibers with dimensions ranging from 2 to 8 cm. This involves evaluating the performance of these materials according to the formulation, for a volume ratio (Alfa or Diss / Matrix fibers equal to 4), using dry fibers and pre-wetted fibers. The study of the mechanical properties showed a drop of the performance for both compression and bending strength compared to the reference material without adding fibers (cement or clay paste). It should be noted that the best mechanical performance is obtained for the case of composites materials with cementitious matrix with pre-wetted fibers. On the other hand, in the case of composites with clayey matrices, pre-wetting does not improve the mechanical characteristics. It is also noted that the best dimensions of fibers which improve the mechanical characteristics in bending are generally 6 cm for composites with a clay matrix and between 2 and 4 cm for cementitious composites. In all cases, the fibers in composite materials with cement or clay matrix create a bridging effect, making it possible to limit the progression of cracks during loading. This phenomenon gives to the various composite materials a ductile behavior.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 4; 130-147
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zaspokajanie zbiorowych potrzeb wspólnoty gminnej a bezpieczeństwo państwa – rola gminy w procesie zapewniania bezpieczeństwa surowcowego kraju
Autorzy:
Grzywacz, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1632238.pdf
Data publikacji:
2021-03-15
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
state security
raw materials security
natural resources
spatial planning and development
cooperation
local government
own tasks of a commune
commune
bezpieczeństwo państwa
bezpieczeństwo surowcowe
zasoby naturalne
planowanie i zagospodarowanie przestrzenne
współpraca
samorząd terytorialny
zadania własne gminy
gmina
Opis:
Raw materials security is currently one of the biggest challenges for every modern statehood. Its essence, however, has not been noticed and appreciated for many years. Ensuring the state’s security, also in the area of raw materials, demands close cooperation between state authorities and local government. Moreover, it demands taking into consideration not only local interest, but also goals of the state. Nowadays, fulfilment of own tasks of the commune (e.g. tasks in the area of spatial planning and development) should include security of a state as a bigger value. Unfortunately, the practice shows that in many cases aforementioned assumption is not being implemented.
Źródło:
Studia Iuridica; 2020, 85; 227-239
0137-4346
Pojawia się w:
Studia Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodegradable polymer composites based on polylactide used in selected 3D technologies
Biodegradowalne kompozyty polimerowe na osnowie polilaktydu stosowane wwybranych technologiach 3D
Autorzy:
Bulanda, Katarzyna
Oleksy, Mariusz
Oliwa, Rafał
Budzik, Grzegorz
Gontarz, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/945764.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
3D printing
MEP
FFF
MEM
polymer composites
natural fillers
processing of polymer materials
druk 3D
kompozyty polimerowe
napełniacze naturalne
przetwórstwo tworzyw polimerowych
Opis:
As part of the work, new polymer materials were used in 3D printing, which can be used in three technologies depending on the apparatus used: Fused Filament Fabrication (FFF), Melted and Extruded Manufacturing (MEM), Melt Extrusion Polymers (MEP). As part of the work, the properties of obtained polymer composites were examined. Polylactide (PLA) was used as the matrix, and powdered natural ground fillers were used as fillers: bamboo dust (PB), cork dust (PK) and wood dust (PD). In the first part of the work, filaments were received from the tested composites using the filament preparation line made by METACHEM in Torun for use in 3D printers. Samples for mechanical tests were obtained from the filaments thus received by means of an MEP printer and after granulation by injection molding. In the next part of the work, rheological, mechanical and structural properties of obtained composites were examined. It was found that the addition of natural fillers increased the fluidity of the obtained polymeric materials in the case of composite with addition of PK even by 48.73% compared to unfilled PLA. It was also observed that the composites obtained had lower Charpy impact strength, Rockwell hardness and tensile strength. Observation of the microstructure of the composites using SEM confirmed the even distribution of natural fillers in the polymer matrix, which proves well-chosen parameters of their homogenization in the polymer matrix.
Otrzymano nowe materiały polimerowe do zastosowań w druku 3D, które można wykorzystywać, zależnie od stosowanego aparatu, w trzech technologiach: Fused Filament Fabrication (FFF), Melted and Extruded Manufacturing (MEM), Melt Extrusion Polymers (MEP). Zbadano właściwości wytworzonych kompozytów polimerowych. Jako osnowę zastosowano polilaktyd (PLA), a w charakterze napełniaczy użyto sproszkowanych w postaci pyłu naturalnych cząstek: bambusa (PB), korka (PK) oraz drzewnych (PD). Z badanych kompozytów otrzymano filamenty z wykorzystaniem zaprojektowanej i wykonanej przez METACHEM w Toruniu linii do wytwarzania filamentu stosowanego w drukarkach 3D. Z tak uzyskanych filamentów wykonano próbki do badań mechanicznych za pomocą drukarki MEP oraz, po zgranulowaniu, metodą wtryskiwania do formy. Zbadano właściwości reologiczne, mechaniczne oraz strukturalne otrzymanych kompozytów. Stwierdzono, że dodatek naturalnych napełniaczy spowodował zwiększenie płynności materiałów polimerowych, w wypadku kompozytu z dodatkiem PK nawet o 48.73% w stosunku do płynności nienapełnionego PLA. Stwierdzono, że otrzymane kompozyty wykazywały mniejsze: udarność według Charpy'ego, twardość według Rockwella oraz wytrzymałość przy rozciąganiu. Obserwację mikrostruktury badanych kompozytów za pomocą SEM potwierdziły równomierny rozkład cząstek naturalnych napełniaczy w osnowie polimerowej, co świadczy o dobrze dobranych parametrach procesu ich homogenizacji.
Źródło:
Polimery; 2020, 65, 7-8; 557-562
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Construction waste management in rural areas of the Czestochowa district in the aspect of environmental safety
Autorzy:
Brycht, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/104120.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
construction waste management
natural environment safety
recycling buildings materials
gospodarka odpadami budowlanymi
bezpieczeństwo środowiska naturalnego
recykling materiałów budowlanych
Opis:
In the last few decades there have been significant changes in single-family housing in rural areas. More and more new buildings are being built, many are being renovated or thermomodernized. This activity generates a number of waste that, if not managed properly, can have a negative impact on the natural environment. This article analyses ways of waste management generated during the erection of new buildings, renovations and reconstruction. The aim of the research presented in the study was to identify trends in the manner of construction waste management in the last thirty years in rural areas of the Czestochowa district. The substantive basis for the research were CAWI (Computer Assisted Web Interview) surveys carried out among investors and contractors of construction works in the analysed area. On their basis, indicators illustrating changes in the manner of management individual types of waste were estimated. It was found that positive changes occurred in this area during the analysed period. Primarily, the scale of activities having a clearly negative impact on the environment and the safety of life of residents decreased significantly. Processes such as uncontrolled burning or burying waste in the ground have been reduced from over 40% to around 13.5%. The reason for these positive trends is primarily the increasing ecological awareness of rural residents, high fines for the illegal removal of waste, as well as in the case of waste other than construction, the obligation to have waste containers. Currently, positive environmental activities such as selective waste collection and transfer to specialized companies increased from around 2.5% to over 50%.
Źródło:
Quality Production Improvement - QPI; 2020, 2, 1; 60-68
2657-8603
Pojawia się w:
Quality Production Improvement - QPI
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of wastewater post-treatment in filter columns with the use of mineral materials
Autorzy:
Gubernat, Sylwia
Czarnota, Joanna
Masłoń, Adam
Koszelnik, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2172364.pdf
Data publikacji:
2020
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
wastewater treatment
filtration
natural materials
lava rock
lightweight sintered aggregate
lightweight clay aggregates
oczyszczanie ścieków
filtracja
skała lawowa
lekkie kruszywo spiekane
lekkie kruszywo gliniaste
Opis:
Based on the assumptions of the circular economy model and sustainable development, we are currently looking for natural and ecological materials in terms of wastewater treatment of pollutants. This article presents the research of three mineral materials - lava rock (LR), lightweight sintered aggregate (LSA) and lightweight clay aggregates (LCA) used as filling of filtration columns for the treatment of real wastewater. The filtration process was carried out under various hydraulic loads in two columns, one of which was additionally supported by the aeration process. The post-treated sewage was characterized by the following parameters: COD (chemical oxygen demand), TOC (total organic carbon), phosphate phosphorus (P-PO4 ), total nitrogen (TN) and total phosphorus (TP). Among the hydraulic loads applied, the most optimal loads were OhI = 0.25 m3/(m2·h). Certyd turned out to be the most effective with supporting filtration with the aeration process in removing organic compounds (reduction of 65.1% COD and 38.2% TOC at OhI ). Lava rock seems to be a promising material reactive in terms of removal of biogenic compounds such as nitrogen (efficiency 23.8% at OhI ) and phosphorus (64.2% reduction of TP at OhI ) and organic compounds (21.4% reduction of TOC at OhI in conditions without aeration). LCA shows the best efficiency in sorption of phosphorus compounds (41.6% reduction of TP at OhI ) and organic compounds (21.4% TOC reduction at OhI under non-aerated conditions).
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2020, 37, 67; 47--58
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication of Dye Sensitized Solar Cell Based on Natural Photosensitizers
Autorzy:
Nirmala, M.
Sahana, S.
Iswarya, B.
Maruvarasi, K.
Jenita, A. Adline
Kavitha, B.
Powiązania:
https://bibliotekanauki.pl/articles/1031877.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Efficiency
FTIR spectroscopy
Functional
Natural Dyes
Solar cell
nanocrystalline materials
nanocrytalline titanium dioxide
Opis:
Dye Sensitized solar cells were fabricated using with natural extracts and TiO2 is used as a semiconducting layer. The layer of nanocrytalline titanium dioxide was deposited on conductive side of the transparent Fluorine doped Tin Oxide (FTO) glass plate and the other side of the plate is coated with graphite. Voltage and Current values are measured for natural dyes coated FTO plate and I-V characteristic curves of all fabricated cells were drawn and analyzed. The highest power conversion efficiencies of Blueberry (0.79872%) and Beetroot (0.745813 %.) dyes were achieved among 10 dyes. The functional groups of Beetroot and Turmeric natural dyes were confirmed under FTIR spectroscopy. The ease and cost efficiency of the overall fabrication process, extensive availability of these fruits/juices render them novel and low-cost candidates for Solar cell applications.
Źródło:
World Scientific News; 2020, 149; 128-139
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Historical tradition and modern transformations of the algerian and persian housing environment
Autorzy:
Ivashko, Yulia
Dmytrenko, Andrii
Chang, Peng
Powiązania:
https://bibliotekanauki.pl/articles/2147163.pdf
Data publikacji:
2020
Wydawca:
Politechnika Krakowska im. Tadeusza Kościuszki. Wydział Architektury. Katedra Kształtowania Środowiska Mieszkaniowego
Tematy:
Persian houses
Persian mosques
Algerian houses
Algerian mosques
natural conditions
building materials
internationalisation of architecture
perskie domy
perskie meczety
algierskie domy
algierskie meczety
warunki naturalne
materiały budowlane
internacjonalizacja architektury
Opis:
Historically, the urban situation in the cities and towns of Persia and Algeria was highly specific. The hot dry climate contributed to a street network, which was protected from the sun as much as possible. Climate conditions determined the appearance of houses with flat roofs, small windows and white walls. The entire urban planning system had the main centre - the city (town) mosque. There were smaller mosques in the structure of residential areas, densely surrounded by houses. Just as under the influence of climate a certain type of residential building took shape, these same factors formed a characteristic type of mosque in the housing environment. Globalist trends have affected even such a conservative sphere as Islamic religious architecture, as it gradually toned down striking regional features, which is explained by the typicality of modern building materials and structures and the international activity of various architectural and construction firms in different corners of the world. Over the centuries, two opposing images of the mosque have emerged - the pointedly magnificent Persian and the fortress-type of Maghreb (typical for Algeria) types. This paper reviews how specific climatic conditions and historical processes influenced the use of building materials, structures and decoration in the mosques of Persia’s and Algeria’s different regions. Today we observe an erosion of regional features in the form and layout of modern mosques, which are analysed on the basis of the examples given. On the basis of a comparison of authentic mosques and erected by foreigners, it is proved how local features are gradually being eliminated and what this leads to.
Źródło:
Środowisko Mieszkaniowe; 2020, 31; 113--124
1731-2442
2543-8700
Pojawia się w:
Środowisko Mieszkaniowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lilly Reich. Cz. 2, Próba odtworzenia programu nauczania projektowania wnętrz w Bauhausie (1932–1933) na podstawie głównych cech twórczości Lilly Reich
Lilly Reich. Part 2,: A short study of selected projects by Lilly Reich included in the study program of interior design course in Bauhaus (1932–1933)
Autorzy:
Bartnicka, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1403670.pdf
Data publikacji:
2020
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
materiały naturalne
przenikanie przestrzeni
tkanina we wnętrzach
projektowanie wystaw
Bauhaus
Reich Lilly
natural materials
space intersections
fabrics in interiors
exhibition design
Lilly Reich
Opis:
Artykuł jest drugą częścią publikacji dotyczącej działalności projektowej designerki i projektantki wnętrz Lilly Reich. Była ona wszechstronnie uzdolniona, zajmowała się modą, wzornictwem, projektowaniem wystaw oraz wnętrz. W wieku 27 lat stała się członkinią Werkbundu, osiem lat później jako pierwsza kobieta w historii została członkiem jego zarządu. U szczytu sławy i możliwości twórczych od swojego wieloletniego współpracownika Ludwiga Miesa van der Rohego otrzymała propozycję nauczania wraz z nim w szkole Bauhaus. Powierzono jej kierowanie warsztatami tkackimi oraz pracownią projektowania wnętrz. Podjęta w artykule próba uchwycenia najbardziej charakterystycznych cech jej twórczości daje możliwość określenia kierunku, w jakim poprowadziła nauczanie w ostatnich kilkunastu miesiącach istnienia tej szkoły. W procesie analizy wyszczególniono następujące cechy jej działalności: ustanowienie nowej metodologii projektowania wystaw, wykorzystywanie szlachetnych materiałów naturalnych, eksponowanie ich atrakcyjnej powierzchni, prostota i ekonomika mebli oraz ich szlachetne wykończenie, stosowanie niestandardowych tkanin we wnętrzach, wykorzystywanie różnego stopnia przenikania światła i przejrzystości materiałów, a także wywoływanie wrażenia przestrzenności i przestronności wnętrz połączone z ideą integracji wnętrza i zewnętrza.
The article is the second and the follow up part of the publication about Lilly Reich, a recognised interior and spatial designer. Lilly was a versatile and exceptionally gifted designer who worked across various design disciplines: fashion, product design, exhibition design and interior design. At the age of 27, she became a member of Werkbund and eight years later as the first woman in history, became a member of its board. At the height of her fame, she received an offer from Mies van der Rohe, her long-time collaborator, to teach with him at the Bauhaus school. Lilly became the head of weaving workshops and interior design studio. The article attempts to outline the most characteristic features of her work which also show the overall design direction of the school in the months preceding its closure. In the analysis the following changes and characteristics were found: introduction of new exhibition design methodology; emphasis on the use of precious and natural materials, especially with regards to displaying their surfaces; simplicity and economics of furniture; emphasis on the use of high-end finishes; non-standard use of fabrics in interiors; use of various transparent and translucent materials in order to enhance the perception of space; and the idea of integrating an interior and exterior to achieve a further effect of spaciousness.
Źródło:
Architecturae et Artibus; 2020, 12, 4; 5-17
2080-9638
Pojawia się w:
Architecturae et Artibus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Opportunities and threats for natural building using straw bale technology
Szanse i zagrożenia dla budownictwa naturalnego w technologii straw bale
Autorzy:
Augustyńska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/390047.pdf
Data publikacji:
2020
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
straw bale
natural construction
natural materials
low energy construction
recycling
CO2 emission
budownictwo naturalne
naturalne materiały
budownictwo niskoenergetyczne
recykling
emisja CO2
Opis:
In this paper, the possibilities of using straw bale technology in construction, as well as the threats that limit both its development and dissemination, have been presented. This study has also investigated the use of recyclable waste and the role of recycling in natural construction, as well as the impact of CO2 reduction on pro-ecological activities. The characteristics of natural straw construction have been discussed, and the main features of straw bale technology have been presented. Examples of the implementation of straw bale technology in both Poland and Europe have been presented and the methods of their use have been described. An integral part of this study is an overview of the opportunities and threats of the use of straw bale technology in natural construction. Low-emission technologies using biodegradable materials as well as the possibility of building nZEB and passive buildings are indicated as main advantages of the technology. The necessity of introducing legal regulations that would enable the development of natural construction using straw bale technology was indicated. Straw bale technology was created as a response to an ecological challenge for sustainable construction and has significant innovation potential.
Celem publikacji jest przedstawienie możliwości zastosowania technologii straw bale w budownictwie, a także zagrożeń, które ograniczają jej rozwój i upowszechnienie. Przedstawiono genezę budownictwa naturalnego ze słomy. W artykule zawarto również informacje dotyczące wykorzystania odpadów nadających się do recyklingu oraz rolę recyklingu w budownictwie naturalnym. Następnie zaprezentowano wpływ redukcji CO2 na działania o charakterze proekologicznym. Omówiono charakterystykę budownictwa naturalnego ze słomy ze wskazaniem głównych cech technologii straw bale. Przedstawiono przykładowe realizacje w Polsce i Europie oraz opisano technologię ich wykonania. Integralną częścią niniejszego artykułu są opracowania przedstawiające szanse i zagrożenia budownictwa naturalnego w technologii straw bale. Wskazano konieczność wprowadzenia regulacji prawnych, które umożliwią rozwój budownictwa naturalnego. Technologia straw bale kreuje się jako ekologiczne wyzwanie dla budownictwa zrównoważonego o znaczącym potencjale innowacyjnym.
Źródło:
Budownictwo i Architektura; 2020, 19, 1; 29-38
1899-0665
Pojawia się w:
Budownictwo i Architektura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using a scale model room to assess the contribution of building material of volcanic origin to indoor radon
Autorzy:
Lucchetti, Carlo
Castelluccio, Mauro
Altamore, Matteo
Briganti, Alessandra
Galli, Gianfranco
Soligo, Michele
Tuccimei, Paola
Voltaggio, Mario
Powiązania:
https://bibliotekanauki.pl/articles/146125.pdf
Data publikacji:
2020
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
building materials
indoor radon
indoor thoron
model room
natural radiation
radon
thoron exhalation rates
Opis:
In the frame of Radon rEal time monitoring System and Proactive Indoor Remediation (RESPIRE), a LIFE 2016 project funded by the European Commission, the contribution of building materials of volcanic origin to indoor radon concentration was investigated. First, total gamma radiation and related outdoor dose rates of geological materials in the Caprarola area (Central Italy) were measured to define main sources of radiation. Second, 222Rn and 220Rn exhalation rates of these rocks used as building materials were measured using an accumulation chamber connected in a closed loop with a RAD7 radon monitor. Among others, the very porous “Tufo di Gallese” ignimbrite provided the highest values. This material was then used to construct a scale model room of 62 cm × 50 cm × 35 cm (inner length × width × height, respectively) to assess experimental radon and thoron activity concentration at equilibrium and study the effects of climatic conditions and different coatings on radon levels. A first test was carried out at ambient temperature to determine experimental 222Rn and 220Rn equilibrium activities in the model room, not covered with plaster or other coating materials. Experimental 222Rn equilibrium was recorded in just two days demonstrating that the room “breaths”, exchanging air with the outdoor environment. This determines a dilution of indoor radon concentration. Other experiments showed that inner covers (such as plasterboard and different kinds of paints) partially influence 222Rn but entirely cut the short-lived 220Rn. Finally, decreases in ambient temperature reduce radon exhalation from building material and, in turn, indoor activity concentration.
Źródło:
Nukleonika; 2020, 65, 2; 71-76
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
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