A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity

Shane, Jennifer S.; Kandil, Amr; Schexnayder, Cliff

doi:10.17226/22723

Cited by 12 publications

(13 citation statements)

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“…In an effort to reduce disruption to the travelling public, these agencies have also begun shortening construction times by utilizing weekend only and nighttime construction more and more to rehabilitate interstates, highways, etc. (Bryden & Mace, 2002;Cottrell, 1999;Shane, Kandil, & Schexnayder, 2012).…”

Section: Methodsmentioning

confidence: 99%

“…Figure 3.11, displays the results for fracture testing at various temperatures and an equivalent age of 28 days. Raw data was analyzed using a simplified analysis procedure of the Jenq-Shah Two Parameter Fracture Model proposed by Jansen, Weiss, and Schleuchardt (Bažant, 2002;Jenq & Shah, 1985;Jensen & Hansen, 2001;Shah, 1990).…”

Section: Durability and Fracture Mechanics Of Materials Containing Acmentioning

confidence: 99%

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Concrete Patching Materials and Techniques and Guidelines for Hot Weather Concreting

Weiss¹,

Zavattieri²,

Olek³

et al. 2019

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High early strength (HES) concrete is becoming increasingly used to repair damaged concrete pavement sections. The use of HES concrete enables the repaired pavement to be opened to traffic within hours of placing the concrete. Rapid repair of concrete pavement is an attractive solution since the traveling public is not delayed by the repair of the pavement in addition to a decrease in the amount of exposure to traffic by construction personnel; however, there are challenges due to strict requirements for opening strength and severe penalties for not achieving the target strength. This project examined failure to obtain long term strength in the construction practices of long patches in concrete pavements. The work examined issues associated with temperature on sulfate balance, flexural strength prediction (maturity methods) considering the influence of moisture (effects of self-desiccation), shrinkage mitigation techniques (internal curing), and improving the overall durability of HES concrete patching materials.

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Section: Methodsmentioning

confidence: 99%

Section: Durability and Fracture Mechanics Of Materials Containing Acmentioning

confidence: 99%

Concrete Patching Materials and Techniques and Guidelines for Hot Weather Concreting

Weiss¹,

Zavattieri²,

Olek³

et al. 2019

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“…• Low (Green): risks in this zone are characterized as low risks, and can be usually ignored or eliminated from further analysis. Shane, et al, (2012) In the questionnaire the respondents were asked to rate the probability of occurrence for each risk factor and their impacts on time, cost and quality in the road construction projects in Erbil. Then average values were calculated for each risk factor.…”

Section: Qualitative Risk Analysismentioning

confidence: 99%

Risk Analysis of Road Construction Projects: A Case Study from Erbil

2018

Tamap J. Eng.

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Construction firms need to identify and mitigate the possible risk factors that can occur in projects to increase their performance considering the increasing competitiveness in the construction industry. Taken into account of huge demand for infrastructure services allied to Iraq's reconstruction, road projects become prominent ones among required infrastructure projects. In this context, identifying risks and developing a risk analysis model for the road construction projects in Erbil constitutes the aim of the study. In this context, a total number of 67 risks that affects road construction projects were identified with a comprehensive literature review. Then, a survey questionnaire was used for data collection with the participation of 56 respondents to perform qualitative risk analysis. Gathered data was analyzed by using probability-impact matrix to prioritize identified risks. After then, Monte Carlo Simulation was used as a quantitative risk analysis method. According to the result of qualitative analysis, a total number of 46 risk factors out of a total number of 67 risk factor were found out as the prominent risk factors for road construction projects in Erbil. The results of Monte Carlo simulation also show that the technical risks are the most significant risks considering their effect on the total project cost.

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“…However, there was no consensus in the literature with regard to whether costs of performing nighttime jobs increase or decrease (Elrahman 2008;Shane et al 2012). On the one hand, the productivity values of daytime and nighttime operations in highway construction were not significantly different (Ellis and Kumar 1993).…”

Section: Related Workmentioning

confidence: 99%

Shift Work and Labor Productivity in Urban Sewer Construction

Nguyen

Tran

2014

Construction Research Congress 2014

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Sewer construction in urban areas often has significant impacts on work zone traffic control, traffic flow, and safety. Contractors typically introduce night shifts to meet contract schedule and to reduce traffic congestion. However, there is a lack of understanding of how shift work is associated with labor productivity in sewer construction. This research investigated labor productivity of ten major activities in sewer and drainage construction in Ho Chi Minh City, Vietnam when these activities were performed in both day and night shifts. Levene's tests and t-tests were employed to analyze the data and investigate the research hypothesis. Results revealed that four activities were significantly sensitive to shift work and the other six activities were not. Pavement cutting and timber piling activities had higher productivity in day shifts. In contrast, steel sheet piling and manhole concreting were more productive in night shifts. Labor productivity of excavation, formwork installation, rebar fabrication/installation, pipe installation, sand filling, and asphalt pavement was not significantly different between the two shifts. The results were verified by the experienced site managers/engineers through structured interviews. The findings form this paper help contractors effectively manage their sewer projects by allocating resources appropriately to construction activities between the day and night shifts.

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A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity

Cited by 12 publications

References 0 publications

Concrete Patching Materials and Techniques and Guidelines for Hot Weather Concreting

Concrete Patching Materials and Techniques and Guidelines for Hot Weather Concreting

Risk Analysis of Road Construction Projects: A Case Study from Erbil

Shift Work and Labor Productivity in Urban Sewer Construction

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