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 15 Abstracts search results
Document:
SP268-01
Date:
March 1, 2010
Author(s):
D. M. Brodowski, M. G. Katona, and J. A. Pope
Publication:
Symposium Papers
Volume:
268
Abstract:
The current research shows that the addition of steel fibers to plain concrete is effective in enhancing the tensile ductility and loading capacity of buried concrete structures such as bridges, culverts, and vaults. This paper details the development of a steel fiber reinforced concrete (SFRC) analytical model used in the finite element program, CANDE, and describes the experimental and analytical approach used to test the accuracy of the model. The results of full-scale, in-place load tests on many precast buried SFRC arch structures (composed of less than or equal to 1% steel fibers by volume) correlated well with the CANDE model predictions. The CANDE program exhibits the ability to model the material behavior of SFRC as well as the effects of soil-structure interaction. The analytical and experimental research summarized in this paper leads to the ability to design SFRC for structural applications such as buried bridges, culverts, and vaults.
DOI:
10.14359/51663704
SP268-04
D. Flax
The common problems associated with concrete include drying shrinkage, cracking and curling. This paper will discuss how two time proven technologies, namely, Type K shrinkage-compensating concrete and synthetic fibers, have been combined to eliminate, or at the very least minimize, these problems. In the absence of drying shrinkage, concrete does not develop drying shrinkage cracks, control joints become unnecessary, curling is almost non-existent, spalling at joints is minimized since the only joints required are the construction joints, and required ongoing maintenance of the slab is minimal since there are so few joints. The Type K shrinkage-compensating concrete addresses the problem of concrete shrinkage and the synthetic fibers restrain the expansion of the Type K shrinkage-compensating concrete. Temperature steel for crack control can be eliminated and both the initial costs and the life-cycle costs are normally lowered. The combination of Type K shrinkage-compensating concrete and synthetic fibers has created a new future for concrete.
10.14359/51663707
SP268-03
J. Jones
Glass fiber-reinforced Concrete (GFRC) has now been in use worldwide for over 30 years. There are many varied applications for this composite material and this paper describes four specific applications that illustrate the benefits that GFRC offers to the construction industry.
10.14359/51663706
SP268-02
G. Fischer
Prefabricated modular housing structures have become a promising alternative to site-built structures with equal or higher engineering quality and durability. Major advantages of this technology are fast and cost-efficient construction, reduced labor requirements, and superior quality control due to factory production. The modular design of these prefabricated structures offers the opportunity for research and application of innovative composite materials and structural concepts. Engineered Cementitious Composites (ECC) in combination with light gauge steel joists and steel trusses have been utilized in the development of modular floor panels for prefabrication of housing structures. The need for steel reinforcement in conventional reinforced concrete thin shell construction creates a technological difficulty as the placement of the reinforcing steel is very labor intensive and proper positioning of the reinforcing mats is difficult. The use of fiber reinforced Engineered Cementitious Composites (ECC) helped eliminate these constraints and lead to more efficient prefabricated structural elements.
10.14359/51663705
SP268-07
T. Atkinson and P. C. Tatnall
This paper discusses the recent tragedies of a number of tunnel fires occurring in transport tunnels, and the effects of these fires on concrete tunnel support linings. The mechanisms of explosive spalling of concrete in fires is described, and the research conducted to assess the ability of fine, polypropylene fibers to mitigate the effects of explosive spalling in severe fires is described. The test program to assess the fire resistance of the 25 miles (40 km) of concrete-lined tunnels in the Channel Tunnel Rail Link project in the United Kingdom is described in detail. A program to ascertain the effects of using these fibers in shotcrete tunnel linings is also considered. These programs demonstrate that small quantities – as little as 1.7 lb/yd3 (1 kg/m3) – of mono-filament polypropylene fibers provide resistance to explosive spalling in fires. Examples of the application of this new technology are listed.
10.14359/51663710
Results Per Page 5 10 15 20 25 50 100