Need a Dependable Backfill?Try a Flowable Fly Ash
Flowable fly ash is a relatively new cementitious structural backfill material. It can be used in water or in the dry and will flow into place without the usual labor-intensive activities...
Low Cement Content High Strength Concrete
The fundamental objective of this research project was to develop mix design information for structural grade concrete using high fly ash content. The fly ash used in this project was...
Advances in Fiber Reinforced Concrete
The idea of using strong discontinuous fibers as reinforcement for concrete seems to have been both a seduction and a challenge to many civil engineers. Adding the reinforcement to the...
Foundation Design Considerations for Detroit DPM
The design loadings for support of the elevated guideway of the Detroit Downtown People Mover (DPM) consist of high vertical as well as horizontal loads. In order to simplify foundation...
Applying an Automated Storage and Retrieval System to a Centralized Bus Maintenance Facility
Gannett Fleming recently completed the design of a new Central Maintenance Facility for the Southern California Rapid Transit District. An integral part of this facility is an automated...
Unsymmetrically Reinforced Concrete Columns
The development of column strength formulas for unsymmetrically reinforced sections has been developed in previous papers. However, aids such as interaction diagrams have not been available...
Advances in High Strength Concrete,
The technology for producing field placeable concrete with a 28 day compressive strength of 10,000 psi has been available for many years. With the recent use of microsilica as an additive...
State of the Art in Concrete-Polymer Materials
Concrete-polymer materials represent a relatively new technology in the construction industry. In some cases polymers are combined with portland cement concrete and, in other cases, polymers...
Obtaining Reliable Data from Fragility Tests
The parameters discussed in this paper are the same as those present in normal seismic qualification testing. These parameters behave differently in high level acceleration tests and their...
Design of Cirata Concrete Face Rockfill Dam
The Cirata Hydro-Electric Project on the Citarum River in Western Java, Indonesia is at present under construction for Perusahaan Umum Listrik Negara (PLN). The project which is being...
Particles, Pretreatment, and Performance in Water Filtration
Relationships among raw water quality, pretreatment facilities, and the design of packed bed filters are presented and applied. The particle size, particle concentration, particle surface...
Strength of Soils in Terms of Effective Stress
The factors that determine soil strength, such as amount of confinement, density, particle size distribution, mineral friction, aging, particle crushing, and others, produce their effects...
The Transit Industry Microcomputer Exchange Support Center
The Transit Industry Microcomputer Exchange Support Center has been in existence for nearly three years. This paper describes the reasons for establishing the center, its current activities,...
Implementing a Maintenance Program in Wisconsin
A vehicle maintenance and parts inventory control microcomputer package was developed and implemented for thirteen small transit properties as a part of the Statewide Microcomputer Implementation...
Microcomputers in Urban Drainage Design
Microcomputers offer an inexpensive method for increasing the efficiency and effectiveness of drainage design personnel. This paper discusses some of the benefits and uses of microcomputers...
Microcomputers and CADD for Roadway Design
In 1984 the California Department of Transportation (Caltrans) implemented a Computer-Aided Design and Drafting (CADD) pilot project to evaluate CADD for performing roadway design functions....
Designing Infrastructure User Charge Strategies
The changing environment of public finance is such that greater use of self-funding and financial independence will be required of public facilities and municipal services. Traditionally,...
Infrastructure Rehabilitation: New Technologies
The paper discusses developments in a number of areas that may be brought to bear on the problems of infrastructure deterioration and rehabilitation. Among the subjects discussed weekly...
Funding Streets as a Public Utility
A group of public works professionals in Washington State met in 1982 to explore using the public utility approach to street and transportation system funding. Since that time several...
Paying for the Costs of Public Service?Methods and Issues
This paper addresses the impacts on urban infrastructure in terms of the facilities and services required and how they are paid for. Particular emphasis is placed on a methodological approach...
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