Interim technical report on the performance of blended cements in concrete viewed in relation to the potential offered by these cements for reducing energy consumption in cement manufacture

Technical Report · Sun Oct 01 00:00:00 EDT 1978

OSTI ID:6520492

The production of portland cement, the key ingredient of concrete, is an energy-intensive process. The potential for realizing significant reductions in energy requirements is high, but a long time period will be required to realize this potential owing to high capital investments required to replace existing plants with more efficient systems. The use of blended cement appears to be one viable supplement to other energy conservation schemes related to the production of portland cement. Blended cements are hydraulic cements composed of mixtures of conventional portland cement with additions that are either themselves capable of hydraulic setting (certain metallurgical slags) or are pozzolanic (such as fly ash), industrial wastes or by-products (slags and fly ash), and spent oil shale or certain mine tailings. These materials are blended or interground with the portland cement clinker in an operation with relatively low energy requirements. The potential energy savings offered by blended cement can be realized only if existing barriers to their manufacture and use are identified and acted upon. Work has been directed at an evaluation and modification of test procedures and specifications for blended cements and Battelle's Columbus Laboratories is concerned with properties and performance of blended cement concretes. The first phase of the program (Task No. 1) is a critical analysis of the situation regarding the engineering properties and performance record of blended cement concretes. In Task No. 2, research concerned with the engineering properties of blended cement concretes will be conducted. The final phase will draw on the analysis carried out in the previous tasks to prepare a document that will aid public policy makers in developing a strategy to overcome the barriers which currently hinder the use of blended cements in concrete construction in the U.S. (MCW)

• Research Organization: Department of Energy, Washington, DC (USA)
• OSTI ID: 6520492
• Report Number(s): DOE/CS-0039/1
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
29 ENERGY PLANNING
POLICY AND ECONOMY
CEMENT INDUSTRY
ENERGY CONSERVATION
TECHNOLOGY ASSESSMENT
CEMENTS
PRODUCTION
CONCRETES
PORTLAND CEMENT
BUILDING MATERIALS
CHEMICAL PROPERTIES
DECISION MAKING
ENERGY CONSUMPTION
ENGINEERING
GLOBAL ASPECTS
INVESTMENT
MIXING
MIXTURES
PERFORMANCE TESTING
PHYSICAL PROPERTIES
RETROFITTING
USA
DISPERSIONS
INDUSTRY
MATERIALS
NORTH AMERICA
TESTING
320302* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Materials
298000 - Energy Planning & Policy- Consumption & Utilization
291000 - Energy Planning & Policy- Conservation