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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 1-5 of 44 Abstracts search results
Document:
SP54-08
Date:
January 1, 1977
Author(s):
G R Packham
Publication:
Symposium Papers
Volume:
54
Abstract:
Shotcrete is normal concrete placed by a spraying process.In any kind of support work where shotcrete is used it is considered essential in Europe that a set accelerating admixture is incorporated into the mix.
DOI:
10.14359/18021
SP54-09
Todd Rutenbeck
Three years ago at the shotcrete conference in South Berwick, Maine, I discussed the problems of testing shotcrete. . .I will limit my discussion to compressive strength testing of cubes and cores. Before discussing recent Bureau of Reclamation research findings, I will again review the existing problems in shotcrete strength testing.
10.14359/18022
SP54-10
John C. Peters
In recent years, a number of papers have been written concerned with water pollution control during dam construction (McCullough and Nicklen, 1971; Sciandrone, 1974; Peters, 1975). These papers described treatment measures undertaken to minimize water pollution from point and nonpoint sources during dam construction. . .This paper describes wastewater treatment used during tunnel construction on Bureau of Reclamation projects and discusses its effectiveness. Further, it discusses legal requirements to meet State and Federal water pollution laws and regulations.
10.14359/18023
SP54-11
F.E. Valencia
As a general rule the theoretical advancement of any product or system leads the practical implementation of the product or system by a large margin. Shotcrete of course, is no exception. Design Engineers have at their disposal volumes of theoretical data from which to design a support for underground structures. Where design data is not applicable, the old rule, "when in doubt, build it stout", usually is employed.
10.14359/18024
SP54-12
Harvey W. Parker, Gabriel Fernandez-Delgado, and Loren J. Lorig
Some rebound is an inevitable consequence of a shotcrete operation. The many various factors leading to excessive rebound were identified and appreciated by those familiar with shotcrete long ago. Studebaker (1939) was only one of the early researchers. However, the relative significance of many of these factors is not yet well understood. The magnitude of rebound is difficult to determine and "eyeball estimates" cannot always be relied upon to base conclusions about the various factors of rebound.
10.14359/18025
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