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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-10 of 64 Abstracts search results
January 1, 1981
Many important issues about bearings were identified by Fritz Leonhardt, keynote speaker at the Congress. His main point was that bearings should be designed and installed to function effectively for up to 100 years. Problems in achieving this goal were discussed. . .The session identified areas in which additional work is needed; these are summarized in a table. The resolution, carried during the Congress, to form a permanent technical committee on bearing systems, a companion to ACI Committee 504, Joint Sealants, is a first step in improving communications. The Congress, attended by over 300 people, was an outstanding success.
This technical note describes the influence of wind speed on the thermal behavior of bridges. It supplements the paper 'Thermal Movements of Concrete Bridges: Field Measurements and Methods of Prediction' published in Volume 1 of the Proceedings. A theoretical method of calculating bridge termperatures was developed which gave good agreement with measured values. Using this theoretical method, it is shown that the influence of the wind speed is greater on the values of the maximum bridge temperature than on the minimum values.
Frank D. Gaus
Many years experience has proven there are essential elements that must be considered in designing joints in Portland cement concrete pavements for highways and airfields, to insure longevity of the sealant to perform to keep the joints sealed against the infiltration of water, moisture, or incompressibles, or against the infiltration of water, moisture, or incompressibles, or jet fuel spillage in airfield critical areas.
Chris Seibel, Jr.
The background and development of hot-applied joint sealants is presented complete with ASTM Standards and their U.S. Federal Specification equivalents when such exist.
Fuijo Machida, Shusuke Miyazaki, Toshiyuki Kitta, Yasuo Maehara, Jiroh Iseki, and Ikuo Shimoda
The combination of fixed bearings and movable bearings with damper stoppers offers one of bridge bearing systems for long span and multispan-continuous bridges.
This technical note describes several expansion joint and drainage details used on bridges in Europe. The details include a technique to prevent deterioration of bituminous surfacings at expansion joints, an adjustable drainage grating, a combination drainage/ventilation element and an expansion bellows to prevent damage to utility pipes from movement of the bridge.
The installation and performance of an elastomoeric concrete bridge joint hearder system is discussed as a prototype for application to specific short span joint reconstruction and performance requirements for rehabilitating the Tappan Zee Bridge.
Vincent Kazakavich and Domenic Massimilian
The paper describes the selection, installation and initial performance of six "MOD" (Modular Expansion Joint) systems on the Collar City Bridge in Troy, New York.
Major advances in the field of tunnelling have been achieved in the post-War period, particularly in relation to machine mining and the development of precast concrete segmented linings. The principal challenge which must now be overcome is the perfecting of waterproofing systems for segmented linings. . .The other waterproofing components: interior linings, patching techniques and the development of superior concretes could form the basis of a subequent paper on the subject.
C. J. Parise
The sealing of structural concrete decks against the passage of liquid water is discussed and covers design considerations and basic components of a waterproofing system. Advantages and disadvantages of various types of waterproofing membranes are described and available standards, trends and needs are summarized.
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