Study on On-site Monitoring of Hydration Heat of Mass Concrete for Bridge Slab Based on Measured Data

Gao, Xiaolonga; Li, Chunguangb; Qiao, Yunhongc

doi:10.31209/2019.100000081

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…For example, petroleum industries are one of the largest industrial plants worldwide that require water for their operations [19,20]. As the produced water contains hazardous materials and can pose significant environmental problems, it cannot be reused without retreatment [21][22][23][24][25][26][27][28][29][30]. Therefore, the use of treated water to continue the operations should be strictly promoted by the World Health Organization to [31][32][33][34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs

Syah

Heidary

Rajabi

et al. 2021

Water

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Nowadays, water savings on industrial plants have become a significant concern for various plants and sections. It is vitally essential to propose applicable and efficient techniques to retreat produced water from onshore and offshore production units. This paper aimed to implement the PFF (Photo Fenton Flotation) method to optimize the water treatment procedure, as it is a two-stage separation technique. The measurements were recorded for the HF (hydraulic fracturing) and CEOR (chemically enhanced oil recovery) methods separately to compare the results appropriately. To assure the efficiency of this method, we first recorded the measurements for five sequential days. As a result, the total volume of 2372.5 MM m3/year of water can be saved in the HF process during the PFF treatment procedure, and only 20% of this required fresh water should be provided from other resources. On the other hand, the total volume of 7482.5 MM m3/year of water can be saved in CEOR processes during the PFF treatment procedure, and only 38% of this required fresh water should be provided from other resources. Therefore, the total water volume of 9855 MM m3 can be saved each year, indicating the efficiency of this method in supplying and saving the water volume during the production operations from oilfield units.

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Section: Introductionmentioning

confidence: 99%

Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs

Syah

Heidary

Rajabi

et al. 2021

Water

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“…[ 2 , 3 , 4 ]. As an economically and practically important material, concrete is also widely used in infrastructure construction projects such as bridges [ 5 , 6 ]. In order to meet the requirements of bridge crossing capacity, mass concrete cushion caps, abutments, piers and other components are increasingly used in bridge construction.…”

Section: Introductionmentioning

confidence: 99%

Hydration Heat Control of Mass Concrete by Pipe Cooling Method and On-Site Monitoring-Based Influence Analysis of Temperature for a Steel Box Arch Bridge Construction

Zhang¹,

Wang

Luo

et al. 2023

Materials

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The steel box arch bridge in this study will be subjected to various temperature effects from the construction to the operation stage, including the cement hydration heat effect and the sunshine temperature effect caused by an ambient temperature change. Therefore, it is very important to control the temperature effect of steel box arch bridges. In this study, the newly built Dafeng River Bridge is selected as the steel box arch bridge. This study aims to investigate the temperature effect including hydration heat and the sunshine temperature effect of the construction process of a rigid frame-tied steel box arch bridge. The manuscript presents that the heat dissipation performance of concrete decreases with the increase in the thickness of a mass concrete structure. The average maximum temperature values of layer No. 3 are about 1.3, 1.2, and 1.1 times the average maximum temperature value of layer No. 1 for the mass concrete of the cushion cap, main pier and arch abutment, respectively. The higher the molding temperature is, the higher the maximum temperature by the hydration heat effect is. With each 5 °C increase in the molding temperature, the maximum temperature at the core area increases by about 4~5 °C for the mass concrete. The pipe cooling method is conducive to the hydration heat control effect of mass concrete. Based on the monitored temperature change and displacement change, the influences of daily temperature change on the steel lattice beam and arch rib are analyzed. A temperature rise will cause the structure to have a certain camber in the longitudinal direction, and the longitudinal or transverse displacement caused by the sunshine temperature change is no less than the vertical displacement. Due to the symmetrical construction on both sides of the river, the arch rib deformation on both sides presents symmetrical synchronous changes. Based on 84 h of continuous temperature monitoring on-site, the changing trends of the arch back temperature and ambient temperature are consistent and their difference is small during 1:00~4:00 in the morning, which is determined as the appropriate closure time for the newly built Dafeng River Bridge.

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Study on On-site Monitoring of Hydration Heat of Mass Concrete for Bridge Slab Based on Measured Data

Cited by 2 publications

References 8 publications

Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs

Current Challenges and Advancements on the Management of Water Retreatment in Different Production Operations of Shale Reservoirs

Hydration Heat Control of Mass Concrete by Pipe Cooling Method and On-Site Monitoring-Based Influence Analysis of Temperature for a Steel Box Arch Bridge Construction

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