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Wyszukujesz frazę "cement treated base" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Impact of recycled aggregate brick on the physical-mechanical and environmental characteristics of cement treated bases
Autorzy:
Toumi, Youcef
Mezhoud, Samy
Boukendakdji, Otmane
Hadjadj, Moussa
Powiązania:
https://bibliotekanauki.pl/articles/27314400.pdf
Data publikacji:
2023
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
cement treated base
life cycle analysis
recycled aggregate brick
Opis:
Recycled aggregate brick (RAB) constitutes a significant waste stream in developed countries, originating from brick manufacturing and demolition processes. This paper investigates the potential utilization of various sizes of RAB as replacements for natural aggregate (NA) in cement-treated bases (CTB), along with an assessment of their mechanical and environmental properties. The study includes a life cycle analysis to evaluate the environmental impacts of different CTB formulations. The novelty of this study lies in the environmental evaluation of four types of CTB, including natural, recycled, and mixed CTB. The physical and mechanical properties of the recycled brick and natural materials are characterized and compared. Results indicate that recycled brick aggregates, when combined with a cement mixture, can be used as a base and sub-base layer with good mechanical performance. Moreover, environmental analyses demonstrate that recycled aggregate generates fewer impacts than natural aggregates. Consequently, this study suggests that the utilization of recycled aggregates brick in CTB offers a sustainable waste management solution while simultaneously contributing to the reduction of environmental impacts associated with construction activities.
Źródło:
Budownictwo i Architektura; 2023, 22, 3; 27--44
1899-0665
Pojawia się w:
Budownictwo i Architektura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
XFEM simulation of the influence of cracking introduced by pre-loading on the strengthening of a cement treated mixture
Autorzy:
Brzeziński, K.
Powiązania:
https://bibliotekanauki.pl/articles/279923.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
fatigue life
cement-treated base layers
strengthening effect
load history
XFEM
Opis:
The paper attempts to explain the phenomenon of a static strength increase due to the previous cyclic loading. Finite Element Method simulation of the potential strengthening mechanism is presented. The crack growth is controlled by the energy criterion used in the linear fracture theory. A wedge splitting test has been performed in order to determine the critical energy release rate of the tested mixture GIC . It was observed that the appearance of additional cracks in the material may lead to an increase of its strength. Analysis of the tensile stress distribution allows for a qualitative explanation of the observed phenomenon.
Źródło:
Journal of Theoretical and Applied Mechanics; 2018, 56, 4; 927-938
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of physical and mechanical properties of cement-treated base incorporating crushed waste tires
Autorzy:
Mezhoud, Samy
Badache, Hacene
Powiązania:
https://bibliotekanauki.pl/articles/36073385.pdf
Data publikacji:
2023
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
crushed waste tires
recycling
cement treated base
physical evaluation
mechanical performance
Opis:
Pavements play a pivotal role in facilitating safe and efficient transportation. However, conventional pavement construction consumes substantial virgin resources, necessitating a shift towards sustainable alternatives. This study explores the integration of crushed waste tires as partial replacements for sand and gravel in cement-treated base (CTB) layers, aiming to enhance pavement sustainability. The CTB mixtures were meticulously formulated and tested for their physical and mechanical properties. Results revealed that while the presence of waste tire aggregates affected the fresh-state rheology, the cured-state performance remained satisfactory, often exceeding normative requirements. Notably, the addition of 10% rubber powder enhanced the mechanical performance of the CTB mixtures and overall exhibited acceptable shrinkage values. The findings offer insights into designing resilient and sustainable pavement systems by using crushed waste tires, aligning with modern infrastructure demands.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2023, 32, 4; 305-319
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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