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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 91 Abstracts search results
Document:
SP128-17
Date:
November 1, 1991
Author(s):
Akira Ohata and Giles Goldsbro
Publication:
Symposium Papers
Volume:
128
Abstract:
The paper briefly introduces experience with rotating machinery grouting, and the perceived need for a high-temperature service polymer-based grout material. It discusses design and handling parameters, and the development of a product that cures at ambient temperatures, without appreciable shrinkage, and has a compressive strength at 150 C of more than 40 MPa.
DOI:
10.14359/1917
SP128-18
L. R. Prudencio, Jr.
The evaluation of early-age strength of shotcrete is very important for some kinds of applications, for example, tunnel linings. However, until now there has been no suitable procedure for this purpose. This paper provides information on a test program carried out to establish an experimental procedure to evaluate the compressive strength of shotcrete at early age (to 8 MPa). Results obtained using the Meynadier needle and the constant energy penetrometer are shown. The first test was employed for very low-strength concrete (less than MPa) and the second covered a higher range (1 to 10 MPa). The influence of mixture proportions on the test results was evaluated.
10.14359/1932
SP128-52
B. Vijaya Rangan, P. Saunders, and E. J. Seng
The results obtained from tests conducted on high-strength concrete columns are reported. The experimental program comprised ten axially loaded short columns and six slender columns subjected to axial compression and bending moment. The main test parameters in the case of short columns are the area and the type of lateral reinforcement, whereas the eccentricity of the axial thrust is the major variable in the slender column tests. The paper also includes methods of calculating the strengths of reinforced concrete columns made of high-strength concrete. The calculated strengths agree closely with the test values.
10.14359/3206
SP128-47
George C. Hoff
Provides background information related to the feasibility of offshore concrete structures for the development of hydrocarbon resources in both newly developing regions of the world and in areas of existing offshore operations where concrete is currently not used. Bottom-founded structures, floating structures, and other more specialized structures are described and their market potential discussed. Three hundred offshore platforms are planned for Asia and Australia between 1990 and 1995; many of these could be built with concrete. The use of local concrete materials and labor to produce moderate strength concrete for these platforms is discussed. Special design and safety considerations are noted. The structures can be built in dry docks, on skidways, or on submersible barges. Portions of the structures can be precast concrete. All of these structures involve some marine operations. General cost considerations and life-cycle costs are discussed.
10.14359/3242
SP128-59
H. Watanabe, S. Kobayashi, H. Kawano, and K. Morihama
Reports on a nearly completed study begun in 1989 to improve the ductility of reinforced concrete members by mixing fibers with concrete. In this study, the bending test of fiber-mixed reinforced concrete beams made with two kinds of steel fiber and aramid fiber by reversal static loading has been done. From the test results obtained so far, it is shown that the ductility of fiber-mixed reinforced concrete beams is improved over that of normal reinforced concrete beams. It is calculated that the ductility factor of fiber-mixed reinforced concrete beams can be computed if the tensile strength and ultimate compressive strain are known.
10.14359/3251
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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.
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