Causative factors of cost overrun in highway projects of Sindh province of Pakistan

Sohu, Samiullah; Halid, Abdullah Abd; Nagapan, Sasitharan; Fattah, Abdul; Latif, Ismail Abd; Ullah, Kaleem

doi:10.1088/1757-899x/271/1/012036

Cited by 29 publications

(38 citation statements)

References 5 publications

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“…Table 2 illustrates the results of reliability test. Cronbach's alpha value was 0.914 which is greater than acceptable value 0.7 (Sohu et al, 2017). Hence the data gathered in questionnaire survey was reliable to proceed further analysis.…”

Section: Data Analysis and Resultsmentioning

confidence: 81%

Factors adversely affecting quality in highway projects of Pakistan

al¹

2018

Int. j. adv. appl. sci.

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Quality is one of an important parameter for measuring successful and sustainable construction projects. For a successful construction projects, it is essential that the projects are delivered according to the quality standards and in line with the customer desire. However, construction projects in both developed and developing countries are characterized by poor quality and highway projects in Pakistan has no exception. This paper aims to determine factors adversely affecting quality in highway projects of Pakistan. Research method for this study is a combination of both literature review and questionnaire survey. Literature review enabled identification of 24 common factors adversely affecting quality in construction industry. A questionnaire based on literature review was distributed amongst construction professionals of highway projects in Pakistan. Data collected from 215 respondents was analyzed using Statistical Package for the Social Sciences (SPSS). It was discovered that incompetent main contractors, improper planning, and improper selection of materials are the main factors adversely affecting quality in highway projects of Pakistan. The findings of this study can assist construction professionals to develop strategies to improve the quality of construction projects in general and highway projects particularly.

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Section: Data Analysis and Resultsmentioning

confidence: 81%

Factors adversely affecting quality in highway projects of Pakistan

al¹

2018

Int. j. adv. appl. sci.

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“…It indicates the distribution of ammonia nitrogen in the equilibrium phase. Langmuir and Freundlich are the most commonly used models for evaluating the experimentally acquired adsorption isotherms [28,29,30,31,32,33]. As be seen in Table 3, high R 2 are derived by fitting experimental data into the Langmuir isotherm model for EFB (0.9923) as compared with the Freundlich isotherm model (0.9450).…”

Section: Adsorption Isothermmentioning

confidence: 99%

Utilization of Empty Fruit Bunch Fibre as Potential Adsorbent for Ammonia Nitrogen Removal in Natural Rubber Wastewater

Nasir

Daud²,

Awang³

et al. 2018

IJIE

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“…This observation could be explained, as at the very beginning of the adsorption process, a large number of vacant surface sites were available for adsorption, which may be the reason for the rate of adsorption boosted in the initial stages. Then, after a lapse of some time, the remaining vacant surface sites were difficult to be occupied and beyond indicated contact time where it reached saturated level, the percentage of removal almost constant indicating the attainment of equilibrium conditions [22,28].…”

Section: Effect Of Biocomposite Dosagementioning

confidence: 99%

Chitosan ultilization in biocomposite adsorbent in Iron (Fe) removal from landfill leachate

Daud¹,

Awang²,

Ibrahim³

et al. 2018

IJIE

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Leachate are very high strength wastewaters that contain a variety of pollutants that pose a serious threat to the environment if appropriate control measure is ignored. Composite adsorbent is an emerging, interesting and attractive alternative to conventional adsorbents and having the ability to act as catalysts due to their high reactivity and excellent selectivity towards specific pollutant compounds. This study investigated the potential of biocomposite adsorbent made from a combination of chitosan, feldspar and zeolite (CFZ) for the treatment of Iron (Fe) from leachate wastewater. Leachate characterization and batch adsorption experiments was conducted to determine the optimum conditions for pH, dosage and contact time parameter in the removal of Fe. The result shows that the concentration of Fe was 15.82 which exceeded the recommended limit. The optimum conditions also occurred at pH 5 with 6 gram of biocomposite dosage and at 180 minutes contact time. The corresponding removal efficiency for Fe is 90% with 0.0127 mg/g uptake capacity.

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Causative factors of cost overrun in highway projects of Sindh province of Pakistan

Cited by 29 publications

References 5 publications

Factors adversely affecting quality in highway projects of Pakistan

Factors adversely affecting quality in highway projects of Pakistan

Utilization of Empty Fruit Bunch Fibre as Potential Adsorbent for Ammonia Nitrogen Removal in Natural Rubber Wastewater

Chitosan ultilization in biocomposite adsorbent in Iron (Fe) removal from landfill leachate

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