Email Address is required Invalid Email Address
In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Learn More
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
Staff Directory
ACI World Headquarters 38800 Country Club Dr. Farmington Hills, MI 48331-3439 USA Phone: 1.248.848.3800 Fax: 1.248.848.3701
ACI Middle East Regional Office Second Floor, Office #207 The Offices 2 Building, One Central Dubai World Trade Center Complex Dubai, UAE Phone: +971.4.516.3208 & 3209
ACI Resource Center Southern California Midwest Mid Atlantic
Feedback via Email Phone: 1.248.848.3800
ACI Global Home Middle East Region Portal Western Europe Region Portal
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 1-5 of 64 Abstracts search results
Document:
SP70-34
Date:
January 1, 1981
Author(s):
L. H. McCurrich and N. R. Cook
Publication:
Symposium Papers
Volume:
70
Abstract:
This paper outlines the different approaches to road and airfield construction in the U.K. and details how this affects joint spacing, detail and sealant specification. The technical shortcomings of traditional sealant materials are discussed with particular reference to the Standards which exist in the U.S. and U.K. The introduction of the more comprehensive ASTM 3569 Standard is seen as a progressive step towards providing for the use of higher performance sealant materials for road and airfield joints. The properties and U.K. site experience for a sealant complying with ASTM 3569 are discussed.
DOI:
10.14359/17432
SP70-40
Edward R. Fyfe
The shear-restricted disc bearing with polyether urethane disc element has been used for over 10 years in bridges, buildings and other structures. The long term properties of the polyether urethane disc material in the bearing design have been tested and field proven. The design engineer now has a bearing with full design and high over-design horizontal forces at as low as zero vertical load, rotation capability at low loads (as low as 10 percent of vertical load), high over-load abilities, deflection limiting design capable of extreme rotation situations, low overall height and compact in-plan size, and total flexibility of design with the disc being the only standard component. The design engineer, using the modified up-lift shear-restriction mechanism can accommodate up-lift forces with rotation in all directions within the bearing.
10.14359/17438
SP70-49
A. Craig Roland
The resources devoted to the develop,emt of continuous sealing glands in the last two decades have in themselves given a vote of confidence to the merits of solving joint sealing problems in bridges with this approach.
10.14359/17447
SP70-26
Lawrence L. Smith and John A. Wagner
Premolded rubber compression joint seals were installed in expansion joints in a new bridge at Jacksonville, Florida in 1966. The superior performance of these seals as compared to older joint sealing methods was shown by inspections over a six year period. The performance led to their adoption by the Florida Department of Transportation as a standard specification material in 1973. The condition of these seals at the end of nearly fifteen years is now examined. Both the joint condition and the quality of the seal alone (compared with the original laboratory test values) are discussed. Data on both polychloroprene and ethylene propylene diene terpolymer seals are presented. Seals made from each polymer are serving the intended purpose. Due to the superior performance of seals using ethylene propylene diene terpolymer, recommendations are made to change Florida's specifications to allow this polymer as an alternate to poly-chloroprene seals. Addi tional laboratory tests are recommended to determine what degree of compression of the seal in the joint would minimize cracking of the top surface.
10.14359/17424
SP70-47
Robert M. Evans and R.B. Greene
The paper begins with a brief discussion of urethan chemistry as it relates to the properties of joint sealants. . .Urethanes are available in two component (on site mixing required) and one component forms. The chemistry and advantages of each type are discussed. . .Examples of urethane sealant use in vertical structures, horizontal structures and water immersed structures are given. Optimum and economical joint design for these are given.
10.14359/17445
Results Per Page 5 10 15 20 25 50 100