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Journal of Construction Engineering, Technology & Management
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ISSN (Print) 2347-7253 - ISSN (Online) 2249-4723
Published by STM Journals

[66 journals]

Students’ Perception on the use of Project-Based Learning in Civil
Engineering Education.
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  Authors: Abdirisak Mohamed Abdillahi, Aynur Kazaz
  Pages: 1 - 6
  Abstract: This study investigates students’ perceptions of the use of project-based Learning in civil engineering, using a survey to collect responses of 84 undergraduate students enrolled in civil engineering programs of three major Somaliland Universities. The respondents were asked to rate their opinions regarding statements on the use of project-based learning in civil engineering education. The results show a positive reception of the PBL method and an increased perception of the contribution of project-based courses on soft skills such as team work, communication and interpersonal skills. Finally, suggestions related to the use of project-based learning in civil engineering were proposed.
  PubDate: 2022-02-14
  Issue No: Vol. 12, No. 1 (2022)
A Review on Sustainable Building with Recycled Concrete
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  Authors: Mohit A.K. Arya, Adesh A. Dandge, Vijay H. Nimbhore, Rakhi H. Nimbhore
  Pages: 7 - 11
  Abstract: There are various advantages of using high strength concrete as it not only reduces the structural dimension but also help in gaining cost cutting and more profits in high rise structure with reduction of dead load, and self-weight of the structure, also help in reducing the formwork area and cost saving due to smaller foundations beds. Beside this rise in construction industry with the help of concrete, there are huge number of building waste are collected with the construction and demolition waste in all parts of the world. Until now the energy consumption is been the only topic to generate any interest in the sector of real estate. But now people are getting aware with the properties that construction is consuming lots of virgin resources. So now people are starting considering the building products with their sustainability and use. There are various studies carried out day by day in RCA as its the main component of concrete which alone contribute about 60% as whole. But concrete is a nonrenewable source. Various lands are required for quarrying the virgin aggregate. So if C and D waste are utilized in recycled way it can reduce the extraction of virgin aggregate which will help the environment as well in reduction of greenhouse gas emission.Keywords: Sustainable Building, Recycled Concrete, High Strength concrete, Structural dimension, dead load
  PubDate: 2022-04-01
  Issue No: Vol. 12, No. 1 (2022)
Comparison of the Compressive Strength of Concrete Made with Palm Kernel
Shell and Gravel as Coarse Aggregates
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  Authors: Habiba Musa Lawal, Abdussalam A; Shehu N, Baba H.I., Lawal H.M, Tukur M.B, Buhari G
  Pages: 12 - 18
  Abstract: The investigation of alternative materials for the construction, comparison of the compressive strength of concrete made with palm kernel shell as coarse aggregate and concrete made with gravel. A mix proportion of 1:2:4 with water cement ratio of 0.6, ordinary Portland cement, PKS, gravel and sand were used for this research. 24 cubes were cast and tested for compressive strength at 7, A14, 21 and 28 days. The result showed that the PKS had more absorption capacity than the gravel. The apparent specific gravity of 1.63 for PKS and 2.70 for gravel indicated that the aggregate falls within the range of light weight and normal weight respectively. The compressive strength of the PKS concrete was observed to be 7.94 Nmm-2 at 7 days and 17.76 Nmm-2 at 28 days of curing while that of gravel concrete was observed to be 7.94 Nmm-2 at 7 days and 17.76 Nmm-2 and 14.96 Nmm-2 at same curing days. It was observed that the concrete strength increases as curing days increase. This indicated that the application of PKS concrete is not suitable for wearing surfaces. The compressive strength observed for the PKS concrete showed that it could be used for light weight structural elements as specified by ASTM (1977) which recommends at least 17 Nmm-2 for structural light weight concrete. Further tests are recommended on the elasticity, creep, anchorage/bond and durability for the two concrete types used.Keyword: Palm kernel, compressive strength, concrete, coarse aggregate
  PubDate: 2022-04-13
  Issue No: Vol. 12, No. 1 (2022)
High Strength Bolt Tightening and Verification Techniques for Steel
Connections: In-Depth Study and National Survey
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  Authors: Yoon-Si Lee
  First page: 19
  Abstract: The current means and methods of verifying that high strength bolts have been properly tightened is very laborious and time consuming. In some cases, the techniques require special equipment and in other cases the verification itself may be somewhat subjective. While some commercially available verification techniques do exist, there are drawbacks such as being costly, time-consuming, and impractical to use in the field. The main objectives of this project were to explore high-strength bolt tightening and verification techniques and to investigate the feasibility of developing and implementing new alternatives. A literature search and a nationwide survey were conducted to collect and review information on various bolt tightening and verification techniques such that an understanding of available and under-development techniques could be obtained. Also, the requirements for materials, inspection and installation methods outlined in the Research Council on Structural Connections specifications were reviewed and summarized. The technology review effort presented herein was intended to seek a methodology or techniques which, in the near or long term, can be used to quantitatively and accurately determine the stress level in bolted connection. This required a preliminary evaluation of currently available technologies, including numerous nondestructive evaluation techniques that either have been proven in the laboratory or appear to have potential for bolt stress measurement. This paper summarizes all of the work completed during this project.Keywords: High strength bolt; tightening; verification; pretension.
  PubDate: 2022-04-01
  DOI: 10.37591/jocetm.v12i1.6218
  Issue No: Vol. 12, No. 1 (2022)
Characteristics of Hydrated Concrete Mix by Using Steel Slag
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  Authors: Alpit Soni, Shailendra Prasad Tiwari, Sandeep Gupta
  Pages: 33 - 40
  Abstract: Steel slag is derived from steel manufacturing industry and is produced in burned steel production furnaces. Those produced steel slags can be consumed as coarse or fine aggregates in the construction of civil engineering structures while preparing the concrete. It is usually used as aggregate in hot mix asphalt surface purposes. However, in numerous numbers of recent researches it has been observed that there is a possibility of consuming this industrial steel slag as alternate to any of the fine and coarse aggregates in normal or conventional concrete mixes. Maximum volume of concrete contains aggregates. Substituting all or some fraction of natural aggregates with steel slag would lead to substantial environmental benefits. Presently researchers worldwide are working to produce a new, robust and innovative product known as Steel slag hydrated matrix (SSHM) with low or zero natural aggregates and containing only artificial steel slags or recycled materials. This new product is having very good strength and abrasion resistance properties. In the present research this steel slag hydrated matrix is produced and tested for characteristics such as compressive strength and workability and results were compared with ordinary cement concrete which has been produced using ordinary Portland cement, sand and natural aggregates. In this matrix coarse aggregate are replaced by steel slag, fine aggregate is replaced by Ground granulated blast furnace slag (GGBS) and the alternative of cement is the blend of fly ash with slaked lime. From the results it has been observed that prepared matrix is comparable to the ordinary concrete with added advantages of protecting natural aggregates and utilizing waste products.Keywords: Steel Slag, Hydrated Matrixand Ground, Granulated blast furnace slag, Concrete, Mix
  PubDate: 2022-04-13
  Issue No: Vol. 12, No. 1 (2022)