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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 13 Abstracts search results
Document:
SP107-07
Date:
June 1, 1988
Author(s):
C. H. Murphree
Publication:
Symposium Papers
Volume:
107
Abstract:
Forming economical concrete is discussed from the contractor's viewpoint. Two major concrete projects are used to compare manufactured and job-built systems for economy and quality. The contractor reveals his estimated and actual prices. The re-use of form panels, up to 72 times, produces real economy and achieves quality. The "team approach" in selecting the right system is used and recommended.
DOI:
10.14359/3635
SP107-10
J. M. Shilstone, Jr.
A contractor's construction requirements include different factors than are normally considered in concrete mix proportioning. Changes in materials and job conditions during construction can affect concrete and its ability to meet the contractor's construction needs. Computerized analysis of aggregate gradations and concrete mix proportions from project submittals help reveal potential workability problems that will impact pumping, economy, and finishing. Statistical analysis of concrete test results can reduce concrete cost by using the ACI Building Code to determine minimum average strength requirements. Ongoing analysis of changing materials and job conditions can predict and resolve problems rapidly and, therefore, minimize delays. Two computer programs, seeMIX and seeSTAT, are used to demonstrate how computer analysis can aid construction projects.
10.14359/3653
SP107-06
J. M. Shilstone
This is a sequel by the author to a paper discussing the contract documents for architectural concrete. Here, the discussion covers those things that the contractor should do to produce an acceptable architectural concrete project. The recommendations start with a review of the contract documents to locate problems and potential points of conflict. From that point, materials, equipment, processes, and controls are described.
10.14359/3372
SP107-08
J. Bullock
In keeping with the theme of "Forming Economical Concrete Buildings," the end result of the project must be considered. Pumping of concrete walls from the bottom is not the most inexpensive method of wall construction unless the architectural possibilities of form and finish are considered. This concept, by eliminating or minimizing the need of concrete vibration during placement, allows more freedom of form by the designer than other conventional methods and almost guarantees an aesthetically pleasing finish. However, the economy of this technique is predicated upon spreading the initial cost of form fabrication over a broad base through the reuse of formwork. If a project has difficult concrete walls and/or lends itself to form reuse, the concept of pumping from the bottom becomes as economical as other more conventional methods.
10.14359/3377
SP107-09
A. J. Cellucci
This paper describes a permanent forming system constructed of panels molded of expanded polystyrene. The panels interlock for fast erection and remain in place to provide insulation to the finished wall. Construction of forms and walls is discussed. The system can be used above or below ground. Bracing and whaler systems, methods of forming window and door openings, and finishes are discussed.
10.14359/3382
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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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