00149912

Component

http://onlinepubs.trb.org...ubs/sr/sr166/sr166-005.pdf

Changes (which have been necessitated by shortages) in the highway contracting and construction fields are categorized, policies established by general contractors in times of shortages are listed, and 12 suggestions are made for cutting costs in highway construciton. It is recommended that restrictive specifications requiring fixed-form construction be replaced with provisions allowing the option of using slip- form techniques in such areas as the placement, consolidation and finishing of portland cement concrete. The requirements for reinforcing steel could be simplified particularly with respect to median barriers. The increased use of prefabricated bridge components is recommended for standardization of bridge components. It is proposed that precast inlet and manhole standard details be developed and included in contracts as acceptable alternatives, and that efforts be made to use naturally occurring materials as aggregates. Where site conditions permit, alternative designs for pipes should be prepared. Standard contract provisions should permit the elimination of transverse steel in continuously reinforced concrete pavement. It is also recommended that the concept of flare-end section of pipe be implemented in lieu of headwalls. Further recommendations are presented which relate to national standardization of highway elements; the substitution of latex, acrylic and polyester coatings; minimization of geometric complexities in bridges, thick lift bituminous paving, and the use of the dryer drum.

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00149927

pp 29-33

1976

Transportation Research Board Special Report

Conference on Optimizing the Use of Materials and Energy in Transportation Construction

Digital/other

Bridge design; Bridge members; Bridges; Building materials; Coatings; Conservation; Continuously reinforced concrete pavements; Contractors; Energy; Fuel consumption; Pipe; Portland cement concrete; Reinforcing steel; Road construction; Specifications; Standardization; Structural design

Bridges and other structures; Construction; Energy; Environment; Highways

TRIS, TRB, ATRI

Apr 13 1977 12:00AM

• AN INTRODUCTION TO OPTIMIZING THE USE OF MATERIALS AND ENERGY IN TRANSPORTATION CONSTRUCTION
• ROADWAY DECISION MAKING AND IMPLICATIONS FOR ENERGY USE: SOME ECONOMIC CONSIDERATIONS
• THE ENERGY CRISIS: FACT OR FICTION
• WILL THERE BE A MATERIALS CRISIS?
• WORKSHOP TOPIC 1. BINDERS
• WORKSHOP TOPIC 2. QUALITY STANDARDS
• WORKSHOP TOPIC 3. AGGREGATES AND OTHER MATERIALS
• WORKSHOP TOPIC 4. EARTHWORK OR EXISTING ROADWAY PREPARATION
• WORKSHOP TOPIC 5. WASTE MATERIALS, BY-PRODUCTS, AND RECYCLED PRODUCTS
• WORKSHOP TOPIC 6. PRODUCTION AND CONSTRUCTION TECHNIQUES
• WORKSHOP TOPIC 7. NEW PRODUCTS AND PROCEDURES POST-1985