Through-transmission Acoustic Surveys for Evaluation of Tremie Concrete

Through-transmission Acoustic Surveys for Evaluation of Tremie Concrete

Author: T. O. Price

Publisher:

Published: 1978

Total Pages: 64

ISBN-13:

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"Evaluation of tremie concrete integrity is of paramount importance for successful construction of underwater foundations. Methods for evaluation exist but are generally confined to spot checks in suspected areas. Through-transmission (cross-hole) acoustic surveying techniques were used in evaluating tremie concrete. The boreholes were PVC pipes installed during the concrete placement. Acoustic surveying data were taken with the acoustic transmitter in one borehole and the receiver in an adjacent borehole. Results indicate that real-time information on lean and/or washed zones can be obtained by using P-wave travel time information between the boreholes. These data can be utilized to evaluate the tremie concrete prior to further construction. The results further suggest that the cross-hole acoustic investigative technique can be adapted to practical commercial application by inserting sensors in the concrete during the pour to eliminate the need for boreholes."--Technical report documentation p.


Durability and Sustainability of Concrete

Durability and Sustainability of Concrete

Author: Nausherwan Hasan

Publisher: Springer Nature

Published: 2020-09-09

Total Pages: 241

ISBN-13: 3030515737

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This book provides practicing engineers with a step by step approach for making durable concrete with optimum use of the local materials available within the various regions of the United States. It further includes actual concrete mixture proportions for high performance concrete for strength and durability under various aggressive environments based on the author’s experience in the field, and support this with illustrative case studies. Examples for concrete mixture proportions, based on the current industry practice and standards, are highlighted to assist engineers in meeting the intended performance requirements (for specific environment conditions) for durable concrete. Covering an important topic for the construction and building materials industries, this book delivers the most up-to-date industry practices and advances in concrete construction from the perspective of a practicing engineer with over 40 year experience. Maximizes practicing engineers’ understanding of best design and construction practices in fabricating, delivery, and installation of concrete, consistent with current knowledge on concrete durability Discusses quality control and testing requirements during design and construction, including mixing, production, and placement of concrete and tolerances for slump and air content Emphasizes real-world examples of optimal concrete mixtures, suitable for selected service conditions and applications, based on prior successful records of projects within the US Addresses the role of innovative admixtures in concrete placement in cold weather conditions below 32F and meeting the strength and durability requirements Serves as a valuable resource for students in graduate programs


Specialist Techniques and Materials for Concrete Construction

Specialist Techniques and Materials for Concrete Construction

Author: Ravindra K. Dhir

Publisher: Thomas Telford

Published: 1999

Total Pages: 512

ISBN-13: 9780727728258

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Concrete will be the key material for Mankind to create the built environment of the next millennium. The requirements of this infrastructure will be both demanding, in terms of technical performance and economy, and yet be greatly varied, from architectural masterpieces to the simplest of utilities.Specialist techniques and materials for concrete construction forms the Proceedings of the three day international conference held during the Congress, creating with concrete, 6-10 September 1999, organised by the Concrete technology unit, University of Dundee.


Construction Technology & Practices

Construction Technology & Practices

Author: Sagar Sarangi

Publisher: Educreation Publishing

Published:

Total Pages: 220

ISBN-13:

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This book provides comprehensive coverage of all the construction activities starting from the beginning to the finishing of a project. It also covers the latest construction technology, such as concrete technology, mechanized construction equipment's. The book contents a detailed description of various topics such as earth work excavation, transportation, finishing work. The theory is presented in a simple and systematic process with attractive images. It also touches on basic ideas about the contracts and accounting, as it is shadow of a civil engineer/ site engineer/ contractors etc. The extensive coverage of all the topics makes this book is helpful for the students of civil engineering/mining students & professionals