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International Journal of Masonry Research and Innovation
Number of Followers: 0

Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2056-9459 - ISSN (Online) 2056-9467
Published by Inderscience Publishers

[451 journals]

CO2 capture of concrete units for pavement through accelerated carbonation
cure
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 Authors: LÃvia Regueira Fortunato, Guilherme Aris Parsekian, Alex Neves Junior
 Pages: 233 - 265
 Abstract: The process of extracting and manufacturing the raw materials needed to obtain concrete emits large amounts of CO2 to the environment. However, recent research has shown that Portland cement-based materials have the ability to store CO2 in the form of CaCO3 through the accelerated carbonation process during the early ages. This technology can be applied to structural elements without reinforcing steel, as concrete used in pavers. Therefore, the present work performed the CO2 curing in concrete pavers produced on an industrial scale. The samples were placed in a carbonation chamber with 20% of CO2 concentration, the temperature and relative humidity were set in 23°C and 65% respectively and the curing process occurred in 4 and 16 hours. The amount of CO2 absorbed by the samples was determined by the method of mass gain. After the curing process, the mechanical properties were measured. The concrete pavers cured with CO2 reached the highest compressive strength, especially in the first ages (two days), and the resistance to abrasion and water absorption presented satisfactory values, but there were no variations at 2 and 28 days.
 Keywords: CO2 cure; accelerated carbonation; concrete units for pavement; CUP; concrete
 Citation: International Journal of Masonry Research and Innovation, Vol. 7, No. 3 (2022) pp. 233 - 265
 PubDate: 2022-04-29T23:20:50-05:00
 DOI: 10.1504/IJMRI.2022.122517
 Issue No: Vol. 7, No. 3 (2022)
Present day status and numerical modelling of heritage masonry bridges of
Kalka-Shimla Mountain Railways
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  Authors: Vinay Shimpi, Madappa V.R. Sivasubramanian, S.B. Singh
  Pages: 266 - 280
  Abstract: This study is conducted on two masonry arch skew bridges located on UNESCO recognised Kalka-Shimla Mountain Railways, India, built in the year 1905 with stone masonry located in seismic zone IV as per Indian Standard Code 1893 (2016). Hence, the present day assessment and seismic performance evaluation of the bridges is necessary for conservation. In this study, field measurement of the bridges is conducted using ambient vibration testing (AVT) and operational modal analysis (OMA) with sensitive accelerometers and data acquisition system. Further, modal parameters have been extracted using frequency spatial domain decomposition (FSDD) technique from recorded data. Furthermore, the measured response of the bridges is compared with the developed initial numerical model to estimate the present day status of the bridges in terms of material degradation. A reliable model is then developed adopting modal updation trial and error procedures. At last, the study is concluded towards understanding status of material degradation and preparation of reliable numerical models of the heritage bridge structures.
  Keywords: historical structure; masonry; arch bridges; ambient vibration test; AVT; operational modal analysis; OMA; finite element modelling; finite element modal updation
  Citation: International Journal of Masonry Research and Innovation, Vol. 7, No. 3 (2022) pp. 266 - 280
  PubDate: 2022-04-29T23:20:50-05:00
  DOI: 10.1504/IJMRI.2022.122516
  Issue No: Vol. 7, No. 3 (2022)
An efficient and simple method for investigating dynamic heat transfer in
multilayered building components
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  Authors: Emilio Sassine, Yassine Cherif, Emmanuel Antczak, Joseph Dgheim
  Pages: 281 - 309
  Abstract: The thermal parameters of building envelopes are crucial information for performing proper building energy simulation, economic optimisation, and suitable energy efficiency measures for existing buildings. However, most of the existing building characterisation methods require heavy and costly instrumentation equipment as well as relatively long monitoring duration. This paper proposes two new methods for determining the thermal properties of the multilayered building walls: the first method allows the determination of the dynamic thermal properties of each layer separately, while the second method considers an equivalent one-layer homogeneous wall. The two methods are validated using a heating box experimental device with a difference of about 4% for λ and 10% for (ρCp). Afterwards, a building numerical model is used to compare the two methods showing that the equivalent building components (walls, roofs, and slabs) can be used as accurate and reliable approach for simplifying the difficulty and complexity of thermal identification of multilayered building walls.
  Keywords: masonry wall; heat modelling; multilayered insulated building; dynamic thermal properties; dynamic heat flow
  Citation: International Journal of Masonry Research and Innovation, Vol. 7, No. 3 (2022) pp. 281 - 309
  PubDate: 2022-04-29T23:20:50-05:00
  DOI: 10.1504/IJMRI.2022.122522
  Issue No: Vol. 7, No. 3 (2022)
Investigations on eco-friendly masonry structural elements developed using
slag-fly ash-glass powder-based alkali activated concrete
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  Authors: Shriram Marathe, I. Ramesha Mithanthaya
  Pages: 310 - 325
  Abstract: The present study attempts a detailed investigation on the strength performances of alkali activated concrete (AAC) mixes incorporating slag, fly ash, and powdered waste glass as binding ingredients for structural masonry applications. All the concrete mixes were prepared by using graded stone crusher dust as fine aggregates. The tests were performed to investigate the mechanical strength performances, and the results were compared with the conventional OPC-based blocks. Tests were also extended to investigate the effect of one type of geogrid reinforcement on the strength performances of AAC masonry blocks. The prism strength and the cost analysis of the conventional and AAC masonry blocks were also carried out. All the test results strongly prove that the alkali-activated masonry blocks are comparatively better than the conventional blocks made up of OPC. Thus, the use of AAC blocks can be highly recommended as a sustainable alternative to traditional OPC structural masonry executions.
  Keywords: alkali activation; masonry blocks; strength; geogrid reinforcement; masonry prism strength
  Citation: International Journal of Masonry Research and Innovation, Vol. 7, No. 3 (2022) pp. 310 - 325
  PubDate: 2022-04-29T23:20:50-05:00
  DOI: 10.1504/IJMRI.2022.122515
  Issue No: Vol. 7, No. 3 (2022)
Masonry framing and capacity characterisation
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  Authors: Shriram Marathe, I. Ramesha Mithanthaya
  Pages: 326 - 342
  Abstract: Masonry framing has a great potential to become a modern construction technique for residential, commercial and infrastructure applications. The focus of this design project was to create a full-scale mechanically controllable masonry arch frame and develop a non-destructive capacity quantification strategy. The blocks were designed and constructed from readily available materials found at most hardware stores. They were also designed to be lightweight and easily manageable. A tilting platform was also created to provide a simple and efficient failure method for establishing a non-destructive capacity quantification approach. The repeated tilting of the constructed arch demonstrated that the design arch frame can be mechanically controlled. Varying the defined mechanism under repeated failure testing also generated a quantification approach that can synchronise theoretical and measured capacities beyond the tested mechanisms under the given loading condition. This project therefore provides the first physical link towards the modernisation of structural masonry framing.
  Keywords: masonry arch; masonry framing; kinematic equilibrium; RSBD; masonry as a method; masonry design
  Citation: International Journal of Masonry Research and Innovation, Vol. 7, No. 3 (2022) pp. 326 - 342
  PubDate: 2022-04-29T23:20:50-05:00
  DOI: 10.1504/IJMRI.2022.122518
  Issue No: Vol. 7, No. 3 (2022)