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Infrastructures, Volume 5, Issue 9

September 2020 - 9 articles

Cover Story: Recycled crushed concrete aggregate (RCCA) and reclaimed asphalt pavement (RAP) have been used as pavement base and subbase material for years. The physical and mechanical properties of these recycled materials have been revealed in various studies. Hence, microstructural properties are yet to understood. This article is a bridge between the microstructural and mechanical properties of RCCA and RAP. Cement-treated RCCA and RAP blends were observed using scanning electron microscope (SEM) for microstructural analysis. Micropores detected from image analysis were correlated with the compressive strength of the cement-treated base with different combinations of RAP and RCCA. Morphological and textural changes were also observed through SEM images. View this paper
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Articles (9)

  • Article
  • Open Access
9 Citations
3,056 Views
22 Pages

Maintenance Modelling of Ceramic Claddings in Pitched Roofs Based on the Evaluation of Their In Situ Degradation Condition

  • Cláudia Ferreira,
  • Ana Silva,
  • Jorge de Brito,
  • Ilídio S. Dias and
  • Inês Flores-Colen

Existing maintenance policies have several limitations, mainly due to the lack of knowledge regarding the durability and performance of buildings. Usually, the maintenance policies are insufficiently accurate, neglecting the risk of failure over time...

  • Article
  • Open Access
3 Citations
6,989 Views
13 Pages

This paper presents the results of a numerical study using the finite element method to assess the effect of wall thickness and a moist region along the wall base on the out-of-plane lateral stability of adobe walls. The models consisted of cantileve...

  • Article
  • Open Access
6 Citations
5,551 Views
25 Pages

Inspection and Assessment of Corrosion in Pretensioned Concrete Bridge Girders Exposed to Coastal Climate

  • Magdalena J. Osmolska,
  • Karla Hornbostel,
  • Terje Kanstad,
  • Max A.N. Hendriks and
  • Gro Markeset

The most common methods for detecting chloride-induced corrosion in concrete bridges are half-cell potential (HCP) mapping, electrical resistivity (ER) measurements, and chloride concentration testing, combined with visual inspection and cover measur...

  • Article
  • Open Access
22 Citations
7,267 Views
18 Pages

Real-Time Road Hazard Information System

  • Carlos Pena-Caballero,
  • Dongchul Kim,
  • Adolfo Gonzalez,
  • Osvaldo Castellanos,
  • Angel Cantu and
  • Jungseok Ho

Infrastructure is a significant factor in economic growth for systems of government. In order to increase economic productivity, maintaining infrastructure quality is essential. One of the elements of infrastructure is roads. Roads are means which he...

  • Article
  • Open Access
9 Citations
3,704 Views
14 Pages

Masonry towers are considered an important part of cultural heritage due to their architectural and historical value. From a structural perspective these kind of buildings are considered slender elements, the same as a cantilever beam. In real cases...

  • Article
  • Open Access
41 Citations
18,297 Views
37 Pages

Tunnelling projects seldom meet the initial budget requirements. Commonly, these types of projects suffer from cost overruns, which subsequently lead to project delivery delays mainly due to unsuccessful ground investigation as specified in the liter...

  • Article
  • Open Access
19 Citations
6,141 Views
16 Pages

A Dissipating Frames for Seismic Retrofitting and Building Energy-Efficiency

  • Dora Foti,
  • Francesco Ruggiero,
  • Maria Francesca Sabbà and
  • Michela Lerna

In the present paper a new and innovative way to approach the regeneration of public buildings and public housing is proposed. It consists in a dissipative steel frame to reduce the displacement demand and to improve the energy efficiency of a real e...

  • Article
  • Open Access
4 Citations
8,048 Views
18 Pages

Selected technical problems related to the rehabilitation of cast-iron columns in structures from the turn of the 19th and 20th century are discussed in the paper. Lack of contemporary standard regulations related to the design of cast-iron structure...

  • Article
  • Open Access
28 Citations
7,763 Views
14 Pages

The reuse of recycled crushed concrete aggregate (RCCA) and reclaimed asphalt pavement (RAP) can provide a sustainable solution for the disposal of C&D waste materials instead of sending them to landfills. More importantly, it will conserve energ...

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Infrastructures - ISSN 2412-3811