The application of brown coal fly ash to road base courses. Final report. [Poland]

Technical Report · Sat Sep 01 04:00:00 EDT 1979

OSTI ID:5420127

Pachowski, J

The findings of this investigation indicate that stabilization of cohesive soils to obtain improved subgrades for all-purpose roads and better subbase for lightweight roads can be obtained with the use of reactive brown coal fly ash; the reactive ingredient in these fly ashes, viz., free lime, can vary from seven to over twenty percent by weight. Stabilization of non-cohesive soil can be accomplished with usage of both reactive and unreactive fly ashes with corresponding decreases in cement requirements with no significant technical problems. The production of fly ash concrete necessitates closer and more detailed investigation of the role of non-reactive fly ash in concrete. An investigation of the use of nonreactive, brown coal fly ash as a filler in portlad cement concrete and bituminous mixes for road embankments is also recommended. In Poland, the use of fly ash in road construction has helped bring improvement and greater safety in motor transport, economic savings in costs, improved working and living conditions due to lessening in pollution and improving the appearance of the environment.

• Research Organization: Polish Ministry of Transport, Warsaw. Road and Bridge Research Inst.
• OSTI ID: 5420127
• Report Number(s): PB-300879
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AEROSOL WASTES
BASES
BROWN COAL
BUILDING MATERIALS
CARBONACEOUS MATERIALS
CHEMISTRY
COAL
ENERGY SOURCES
EUROPE
FLY ASH
FOSSIL FUELS
FUELS
LIGNITE
MATERIALS
PAVEMENTS
POLAND
ROADS
SOIL CHEMISTRY
SOIL MECHANICS
SOILS
STABILIZATION
WASTE PRODUCT UTILIZATION
WASTES