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Wyszukujesz frazę "marble" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
The study of the characteristics of sand concrete based on marble waste sand
Autorzy:
Bebhalilou, Mohamed Ichem
Belachia, Mouloud
Houari, Hacene
Abdelouahed, Assia
Powiązania:
https://bibliotekanauki.pl/articles/396631.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
sand concrete
waste
marble
substitution
durability
performance
beton piaskowy
odpady
marmur
substytut
trwałość
Opis:
The present study aims to valorize the waste and in particular the waste from the Fil-fila quarry. The main reason for choosing the waste from this quarry was the need to reduce the impact on the environment (by reducing stockpiling) and the raw material cost (economic reason). This study therefore consists in recovering this type of waste (discarded powder subject to weather changes) as sand in partial replacement of dune sand in the formulation of sand concrete with percentages of 5, 10, 15 and 20 %, by studying the behavior of these concretes in the fresh state (workability, density and occluded air) and the properties in the hardened state (compressive and tensile strength by bending, absorption by immersion, shrinkage and weight loss, chemical effect of HCl and H2SO4 solutions), and subsequently comparing the results obtained with reference samples (0%) based on ordinary sand. Based on the obtained results, it can be concluded that the substitution of ordinary (dune) sand with marble waste sand provides acceptable results from the point of view of workability, strength and durability. These observations are likely to widen the field of applications of these sand concretes based on marble waste.
Źródło:
Civil and Environmental Engineering Reports; 2020, 30, 1; 130-144
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shrinkage and Absorption of Sand Concrete Containing Marble Waste Powder
Autorzy:
Djebien, Rachid
Abbas, Yassine
Bouabaz, Amel
Ziada, Yasser Nacereddine
Powiązania:
https://bibliotekanauki.pl/articles/27314704.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
sand concrete
marble powder
waste
shrinkage
absorption
kruszywo betonowe
proszek marmurowy
odpady
wchłanianie
Opis:
In the context of growing scarcity of natural resources, the high demand of aggregates and the difficulties to open new quarries, several studies were carried out to study the possibility of reuse of waste and industrial by-products to replace traditional materials which would run out, replace materials when transport distances increase to reduce construction costs and protect the environment. This experimental study aims to investigate the effect of marble waste used as powder on the shrinkage and absorption of sand concrete in order to reuse it in the production of sand concrete. To achieve this goal, several sand concrete mixtures containing different substitutions rates of marble powder (4, 8 and 12%), and different Water / Cement ratio (0.71, 0.74, 0.77) were produced. Then, the evolution of the shrinkage and absorption values of sand concrete mixtures was studied. The obtained results showed that marble waste powder plays a positive role in reducing of shrinkage and absorption values of sand concrete and lead to the production of eco-friendly sand concrete.
Źródło:
Civil and Environmental Engineering Reports; 2022, 32, 1; 240--254
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Recycled Tire Rubber and Marble Waste on Fresh and Hardened Properties of Concrete
Autorzy:
Djebien, Rachid
Bouabaz, Amel
Abbas, Yassine
Powiązania:
https://bibliotekanauki.pl/articles/27314703.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
recycling tire rubber
marble waste
green concrete
properties
odpady gumowe
odpady marmurowe
recykling
beton
Opis:
This paper investigates the effect of simultaneous adding of recycled tire rubber (RTR) and marble waste (MW) as fine aggregates on the properties of concrete. To achieve this objective, the particles size distribution of crushed sand (CS) was corrected by the use of marble waste sand (MWS), and RTR was used by volumetric substitution (1%, 2%, 3% and 4%) of aggregates in concrete. The fresh properties were investigated using the slump, density and air content tests. Hardened properties were investigated through the compressive strength, flexural strengths, pulse velocity, elastic modulus and water absorption. The obtained results showed that the increase in the substitution rate of RTR reduced the fresh and hardened properties of concrete containing marble waste sand. However, with low substitution rates the properties of concrete remain satisfactory and the utilization of RTR and MWS leads to making a green concrete while protecting the environment.
Źródło:
Civil and Environmental Engineering Reports; 2022, 32, 1; 218--239
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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