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Infrastructures, Volume 9, Issue 4

April 2024 - 14 articles

Cover Story: Over the past decade, researchers have studied asphalt paving materials for noise reduction. This study examines sound absorption in rubber-modified asphalt mixtures, with an emphasis on shredded granulated rubber (CR) from end-of-life tires. By analyzing the acoustic coefficient and Gaussian fit parameters in five types of asphalt mixtures, including 0%, 0.75% and 1.50% CR obtained by the dry process, it was found that CR had a negligible influence on sound absorption at temperatures ranging from 10°C to 60°C, particularly in mixtures with high void content. Void content has a high correlation with sound absorption, which could help anticipate future sound-absorbing pavements. View this paper

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Article

6 Citations

2,998 Views

20 Pages

Comprehensive Empirical Modeling of Shear Strength Prediction in Reinforced Concrete Deep Beams

Eyad K. Sayhood,
Nisreen S. Mohammed,
Salam J. Hilo and
Salih S. Salih

Infrastructures2024, 9(4), 67;https://doi.org/10.3390/infrastructures9040067

28 March 2024

This paper presents comprehensive empirical equations to predict the shear strength capacity of reinforced concrete deep beams, with a focus on improving the accuracy of existing codes. Analyzing 198 deep beams imported from 15 existing investigation...

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Article

2,222 Views

17 Pages

Enhancement Seismic Response of a Bored Tunnel Using Isolation for the Challenge of a Faulted Rock Crossing

Ahmed Elgamal and
Nissreen Elfaris

Infrastructures2024, 9(4), 66;https://doi.org/10.3390/infrastructures9040066

27 March 2024

The tunnel boring method (TBM) is a widely used and effective tunneling technology in various rock mass quality circumstances. A “faulted rock mass” can range from a highly fractured rock mass to a sheared weak rock mass, making the groun...

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Article

5 Citations

3,295 Views

21 Pages

Towards Sustainable Road Pavements: Sound Absorption in Rubber-Modified Asphalt Mixtures

Freddy Richard Apaza,
Víctoriano Fernández Vázquez,
Santiago Expósito Paje,
Federico Gulisano,
Valerio Gagliardi,
Leticia Saiz Rodríguez and
Juan Gallego Medina

Infrastructures2024, 9(4), 65;https://doi.org/10.3390/infrastructures9040065

25 March 2024

In the last decade, various asphalt paving materials have undergone investigation for sound attenuation purposes. This research aims to delve into the innovative design of sustainable road pavements by examining sound absorption in rubber-modified as...

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Article

4 Citations

2,523 Views

31 Pages

Stresses in Saturated and Unsaturated Subgrade Layer Induced by Railway Track Vibration

Mohammed Y. Fattah,
Qutaiba G. Majeed and
Hasan H. Joni

Infrastructures2024, 9(4), 64;https://doi.org/10.3390/infrastructures9040064

25 March 2024

The theoretical and practical studies of the cyclic loads resulting from the movement and passage of trains on the unsaturated subgrade to determine the effect of the degree of saturation and moisture content on the foundations and infrastructure of...

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