Quantitative diffuse reflectance infrared fourier transform spectrometric studies of cementitious blends

Conference · Sat Jul 01 04:00:00 EDT 1989

OSTI ID:5746262

Rebagay, T V; Dodd, D A

The effective immobilization of low-level radioactive liquid wastes in the form of grout depends on the quality of the dry cementitious blends used in the grout formulation. Variation in the mix ratios of the components of the blend can cause detrimental effects on the processing behavior of the grout slurry and the final properties of the cured grout. Thus the blends require thorough chemical characterization and monitoring by strict quality control protocols. In an earlier work at our laboratories, Fourier transform infrared- transmission method has been successfully applied in the analysis of blends of cement, fly ash, and clays. However, this method involved time-consuming sample preparation resulting in slow turnaround for repetitive sampling. A practical approach to quality control required a fast and simple method for the analysis of the blends. This paper describes a diffuse reflectance infrared Fourier transform (DRIFT) spectrometric procedure for the routine examination of neat blends consisting of cement, fly ash, clays and/or blast furnace slags. (1 ref., 10 figs., 4 tabs.)

• Research Organization: Westinghouse Hanford Co., Richland, WA (USA)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 5746262
• Report Number(s): WHC-SA-0493; CONF-890760-1; ON: DE89016053
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ABSORPTION SPECTROSCOPY
AEROSOL WASTES
ASHES
BUILDING MATERIALS
CEMENTS
CHEMICAL ANALYSIS
CLAYS
DISPERSIONS
FLY ASH
FOURIER TRANSFORM SPECTROMETERS
LOW-LEVEL RADIOACTIVE WASTES
MATERIALS
MEASURING INSTRUMENTS
MIXTURES
PARTICLE SIZE
QUANTITATIVE CHEMICAL ANALYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RESIDUES
SIZE
SLAGS
SPECTROMETERS
SPECTROSCOPY
WASTES