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Your search keyword '"CLEARY, DOUGLAS B."' showing total 15 results
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15 results on '"CLEARY, DOUGLAS B."'

1. Cold Temperature Effects on Reinforced Concrete Structural Behavior

Author

Riddell, William T., Cleary, Douglas B., Lomboy, Gilson R., Abubakri, Shahriar, Watts, Benjamin E., Kennedy, Danielle E., Berry, Brian, Chan, Amelia, Giagunto, Nicholas, Goodberlet, Joseph, Husar, Maximilian, Kayal, Joseph, McCormick, Christopher, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Gupta, Rishi, editor, Sun, Min, editor, Brzev, Svetlana, editor, Alam, M. Shahria, editor, Ng, Kelvin Tsun Wai, editor, Li, Jianbing, editor, El Damatty, Ashraf, editor, and Lim, Clark, editor

Published
2023
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5. Course in professional practice issues

Author

Cleary, Douglas B. and Sun, Carlos C.

Subjects
Civil engineering -- Practice, Civil engineering -- Curricula, Education -- Evaluation, Business, Education, Engineering and manufacturing industries, Accreditation Board for Engineering and Technology -- Curricula
Abstract

The Accreditation Board for Engineering and Technology (ABET) and practitioners recognize professional practice issues as important in undergraduate civil engineering education. This paper describes a creative approach for incorporating professional practice issues into the civil engineering curriculum through a course entitled 'Civil Engineering Practice.' This course has the following advantages: (1) It encourages active learning via activities as opposed to a traditional seminar; (2) forms long-term teaching partnerships with engineering professionals; (3) offers a venue where important yet distinct topics can be presented systematically; (4) provides the local engineering community with the opportunity to share its accomplishments and to further continuing education credits; (5) reinforces the professional practice elements of the capstone design project; and (6) supplies structured time where students can interact with potential employers and vice-versa. The course feedback from students, faculty, engineering professionals, and ABET evaluators has been overwhelmingly positive. CE Database keywords: Professional practice; Undergraduate study; Curricula; Engineering education.

Published
2003

10. Ultrasonic imaging of defects in concrete pipelines.

Author

Ciocco, Michael, Neyhart, Jeremy, Mandayam, Shreekanth, Jahan, Kauser, and Cleary, Douglas B.

Subjects
ULTRASONIC testing, CONCRETE pipe, NONDESTRUCTIVE testing
Abstract

This paper describes the first stage of a research project to develop an automated vehicle for inspecting the structural integrity of concrete sewer pipelines. We have developed an innovative interrogation and signal processing algorithm for detecting and sizing defects in concrete media, irrespective of the composition of the concrete — a crucial factor for realizing an in-line inspection process for concrete pipes. We have simulated concrete pipeline inspection by fabricating concrete specimens of diverse compositions embedded with rectangular defects of varying depths immersed in synthetic wastewater of varying density. We present ultrasonic C-scans and their corresponding defect characterization profiles. [ABSTRACT FROM AUTHOR]

Published
2002

11. Ultrasound inspection of wastewater concrete pipelines—signal processing and defect characterization.

Author

Mandayam, Shreekanth, Jahan, Kauser, and Cleary, Douglas B.

Subjects
NONDESTRUCTIVE testing, PIPELINES, ULTRASONICS
Abstract

This paper focuses on the development of an innovative nondestructive test procedure (system+algorithm) for characterizing defects in concrete sewer pipelines, using ultrasonic inspection. A signal processing technique is being developed that is invariant to changes in both concrete material properties and composition of wastewater. Development of such an inspection procedure will be the first step in the design of a mobile autonomous vehicle for inspecting wastewater pipeline systems. Results demonstrating the validity of the proposed approach are presented. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2001

15. Innovative Techniques and Materials for Preventing Concrete Shrinkage Cracking

Author

New Jersey. Department of Transportation. Bureau of Research, United States. Department of Transportation. Federal Highway Administration, Lomboy, Gilson R., Cleary, Douglas B., Zhu, Cheng, Kawashima, Shiho, Venkiteela, Giri, Wagner, Seth Michael, Badjatya, Palash, Rutgers University. Center for Advanced Infrastructure and Transportation, Rowan University, Center for Research and Education in Advanced Transportation Engineering Systems (CREATEs), New Jersey. Department of Transportation. Bureau of Research, United States. Department of Transportation. Federal Highway Administration, Lomboy, Gilson R., Cleary, Douglas B., Zhu, Cheng, Kawashima, Shiho, Venkiteela, Giri, Wagner, Seth Michael, Badjatya, Palash, Rutgers University. Center for Advanced Infrastructure and Transportation, and Rowan University, Center for Research and Education in Advanced Transportation Engineering Systems (CREATEs)

Abstract

NJDOT Contract ID Number, Cracks weaken concrete and permit water and harmful chemical ingress into structures. Shrinkage also decreases the load-carrying capacity of bridges. This study investigates shrinkage cracking prevention of infrastructure concretes used in New Jersey. The 15 initial evaluation mixtures were first tested to evaluate their shrinkage behavior. Based on the results of the tests, control mixtures were selected for modification with shrinkage control admixtures and additives. The admixtures and additives were a shrinkage-reducing admixture, a shrinkage-compensating admixture, fibers, an internal curing agent, and two coatings. The modified mixtures were then tested for the effects of the admixtures and additives on shrinkage, mechanical properties, and durability. The cracking potential of control mixtures ranged from moderate-low to high. Initial evaluation mixture autogenous shrinkage increases with the increasing volume of fine aggregate and decrease of coarse aggregates. On the other hand, increasing the portland cement and total binder while decreasing the amount of fine and coarse aggregates tends to increase the drying shrinkage. Different types of admixtures and additives had varied effects on shrinkage. To mitigate cracking in concrete by using admixtures and additives, the standard restrained ring test ASTM C1581 can be adopted for evaluating the concrete’s performance after modification. It is recommended that specifications for concrete shrinkage cracking be met by three specimens from the same batch.

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