Transaction Journal
of Engineering,
Applied Sciences &

:: International
Editorial Board:


Vol.7(4) (October 2016)


:: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies

ISSN 2228-9860
eISSN 1906-9642


  • Bangkok Soil Spatial Interpolation of Unconfined Compressive Strength Using Inverse Distance Weighting
  • Thongchai Phothong, Boonsap Witchayangkoon * , Sayan Sirimontree (Department of Civil Engineering, Faculty of Engineering, Thammasat University, THAILAND )

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    Keywords: Clayey soil; RMSE; IDW; no distance weighting, inverse distance to a power.

    Obtaining engineering soil database information from multiple boreholes testing, it is possible to use such information as input for spatial interpolation of soil strengths. This study applies the Inverse Distance Weighting (IDW) techniques by emphasizing on no distance weighting and inverse distance to a power. The study finds promising results as rmse is rather low. The 23 layers sample data has depth from 1.50 m to 18.25 m. Each layer has different sample number, varied from 7 to 87 samples. The samples in each layer were random 10 times to change the spatial patterns. In addition, the powers in IDW equation are assigned to 2, 3, and 4 for both no distance weighting and distance weighting. The root mean square errors (RMSE) and standard deviation (SD) of RMSE from each pattern are compared.

  • A Proposed Conceptual Model of Industrial Waste Management: A Case Study of Thailand
  • Tarathorn Podcharathitikull * (College of Industrial Technology, King Mongkut’s University of Technology North Bangkok, Bangkok, THAILAND ) and Jirarat Teeravaraprug ( Department of Industrial Engineering, Faculty of Engineering, Thammasat University, Rangsit Campus, Pathumthani, THAILAND )

    (Backup file)


    Keywords: industrial parks; manufacturing waste management; waste management problems .

    Industrial waste management is a challenge for the cities’ authorities in developing countries mainly due to the increasing of wastes. Proper industrial waste management would provide cost efficiency, environmental protection, and social acceptance. This research work gives an attempt to assess present industrial waste management in Thailand. Problems and obstacles are investigated. The main causes of waste management problems are the government and manufacturers as well as industrial parks. Core problems and tentative solutions are obtained. The core problems include lacks of man-power, knowledge, and technology; outdated laws and regulations; weaken law enforcement; vague direction of governmental waste management; expensive cost of managing wastes; and no use of data. Tentative solutions are provided by the core problem category. A roadmap to sustainable industrial waste management and a conceptual model of industrial waste management in Thailand are proposed.

  • Measurement of Tendon Natural Frequency and Impact on Tendon Forces of Continuous Segmental Prestressed Concrete Bridge
  • Sayan Sirimontree *, Kridayuth Chompooming, Boonsap Witchayangkoon,(Department of Civil Engineering, Faculty of Engineering, Thammasat University, THAILAND ), and Wacharapong Prasankleaw (Department of Industrial Engineering, Faculty of Engineering, Thammasat University, Rangsit Campus, Pathumthani, THAILAND)

    (Backup file)


    Keywords: Natural frequency; Spalled concrete; External post tension; Precast segmental; bridge damage.

    Inspecting the concrete bridge, spalling of concrete are observed at dry joints of the one span of precast segmental 4-span continuous prestressed concrete bridge. The damage has been found six months later, after using the bridge. This bridge is external post tension system with 40 meters maximum span of length. The opposite side of bridge span is still in good condition. This triggers the doubts about causes of such damage, including the impact on strength and serviceability of structures. To have information for further analysis, this work performed visual inspection and measurement of tendon natural frequency and impact on tendon forces of the bridge. The results indicated the lag of fit between the dry joints making redistribution of tendon forces to cause such the bridge damage

  • Sayan Sirimontree (Department of Civil Engineering, Faculty of Engineering, Thammasat University, Pathumtani, THAILAND)

    (Backup file)


    Keywords: Steel deck, Shear connector, composite slab, bond

    For composite slab, the key factor is slipping and separation between concrete topping and corrugated steel deck interface, affecting the its load carrying capacity. Bond at contact of concrete and steel deck is destroyed by horizontal shear stress. This causes the concrete to slip and separate from the steel deck, mostly found before the concrete crushing or steel yielding. With adequate shear connectors, load carrying capacity of composite slab can be higher because the ability of concrete and steel to increase stress approach to its strength. This work focuses on behaviors of concrete-corrugated steel deck composite slab under static loading. To prevent slipping and separation of concrete and steel deck, shear connectors are developed to increase bond between concrete and corrugated steel deck interface. The studied specimens are equipped with shear connectors in different patterns. The results confirm that load carrying capacity of specimens with shear connectors are higher than those specimens without shear connectors. The highest load carrying capacity of composite slab specimens can be achieved through the use of shear connectors in the tension zone of concrete near the surface of corrugated steel sheet. This helps to delay the expansion and propagation of flexural crack of concrete.

  • Behavior under Static Loading of Reinforced Concrete Column Strengthening by Ferrocement Jacketing
  • Sayan Sirimontree (Department of Civil Engineering, Faculty of Engineering, Thammasat University, Pathumtani, THAILAND)

    (Backup file)


    Keywords: ductility; Ferro cement; strength; Ductility; ACI; wire mesh; cement mortar;

    Being an important members of reinforced concrete structures, reinforced concrete columns need to be repaired or strengthened due to deterioration and damaged caused by overloading or disaster. Behaviors under static loading of columns, both undamaged and damaged column caused by overloading, strengthened by ferrocement Jacketing are studied in this work. All side of column end are cast monolithically with rectangular beam to represent the actual situation. The test results indicated that compressive load carrying capacity, deformation and ductility of columns strengthened by ferrocement jacketing are increased comparing to the reference column. All strengthened columns are failed in ductile mode. However, the core damaged columns have loaded into the inelastic range prior to strengthening so the maximum load carrying capacity of the repaired and strengthened columns should be evaluated equal to the original undamaged core column.



Previous: Vol 7(3) 2016 .... Next: Vol 8(1) January 2017

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