00676694

Component

http://onlinepubs.trb.org...trr/1994/1458/1458-011.pdf

https://scholar.google.co...illo&publication_year=1994

Use of abrasive blasting to remove paint containing lead, cadmium, and chromium from steel bridges is producing contaminated spent blasting abrasives that may be classified by the Environmental Protection Agency as hazardous, because of their toxicity. Transportation and disposal of spent abrasives is difficult and costly. A potentially inexpensive and practical solution is to recycle contaminated spent blasting abrasives at the construction site in an environmentally safe manner using solidification and stabilization technology. A further benefit of recycling spent blasting abrasives is that there is no need to use landfills or hazardous waste disposal sites. The use of portland cement to solidify and stabilize spent abrasives to produce usable construction material is investigated. Recommendations provided to the Texas Department of Transportation were applied at the Rainbow Bridge in Beaumont, Texas, where the mix designs were used successfully to recycle more than 3,000 55-gal drums of spent blasting abrasives produced at the site. Recycling involved producing concrete blocks that were subsequently used as filler material in the dolphins around the bridge piers.

This paper appears in Transportation Research Record No. 1458, Concrete Research. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01401262

English

p. 73-79

1994

Transportation Research Record

0309060656

Figures (8) ; References (4) ; Tables (9)

Concrete blocks; Mix design; Portland cement; Recycling; Soil stabilization; Solidification

Stabilization

Geotechnology; Highways; Materials; I32: Concrete

TRIS, TRB, ATRI

Apr 28 1995 12:00AM

• ADDITION OF CLASS C FLY ASH TO CONTROL EXPANSIONS DUE TO ALKALI-SILICA REACTION
• DEVELOPMENT OF CONCRETE DURABILITY SPECIFICATION AND RATINGS IN FLORIDA
• EFFECT OF CURING ON DURABILITY OF FLY ASH CONCRETE
• EFFECT OF NATURAL POZZOLAN ADDITION ON EXPANSIONS CAUSED BY ALKALI-SILICA REACTION
• EVALUATION AND COMPARISON OF THE PHYSICAL PROPERTIES OF FIBRILLATED POLYPROPYLENE FIBER-REINFORCED CONCRETES
• IMAGE ANALYSIS OF PORTLAND CEMENT CONCRETE AND ASPHALT CONCRETE PAVEMENTS USING SCANNING ELECTRON MICROSCOPE IMAGES (WITH DISCUSSION AND CLOSURE)
• INFLUENCE OF EARLY HEAT CURING ON PROPERTIES OF 100-MPA AIR-ENTRAINED CONCRETE
• INFLUENCE OF LOADING TYPE, SPECIMEN SIZE, AND FIBER CONTENT ON FLEXURAL TOUGHNESS OF FIBER-REINFORCED CONCRETE
• INTERPRETATION OF ACCELERATED TEST METHOD ASTM P214 TEST RESULTS
• MECHANICAL PROPERTIES OF LIGHTWEIGHT CONCRETE INCORPORATING RECYCLED SYNTHETIC WASTES
• NONDESTRUCTIVE IDENTIFICATION OF INTERNALLY DAMAGED AREAS OF CONCRETE BEAM USING THE SPECTRAL ANALYSIS OF SURFACE WAVES METHOD
• OPTIMIZATION OF ROLLER-COMPACTED CONCRETE FOR LOCAL APPLICATION
• PERFORMANCE CHARACTERISTICS OF MONOFILAMENT POLYPROPYLENE FIBER-REINFORCED CONCRETE
• PREDICTION OF CREEP EFFECT IN SEGMENTAL CONCRETE BRIDGE CONSTRUCTION
• STABILIZATION AND SOLIDIFICATION OF CONTAMINATED SOILS AND SLUDGES USING CEMENTITIOUS SYSTEMS: SELECTED CASE HISTORIES
• SYSTEM OPTIMIZATION OF FAILURE, CONSTITUTIVE MODELING, AND STRENGTHS OF CONCRETE AND OTHER GEOLOGICAL MATERIALS USING GENETIC ALGORITHM
• USE OF MATURITY AND PULSE VELOCITY TECHNIQUES TO PREDICT STRENGTH GAIN OF RAPID CONCRETE PAVEMENT REPAIRS DURING CURING PERIOD