Epoxy modified cements cured with catalytic curing agents for fixation of radioactive waste

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(93)90043-9· OSTI ID:6292871

Rao, S V.S.; Lal, K B; Amalraj, R V ^[1]

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1. Fuel Processing and Nuclear Waste Management Group, B.A.R.C., Kalpakkam (India)

Epoxy modified cement matrices (EPMC) were prepared by adding 10 wt% of epoxy resin to cement containing radioactive liquid waste. The epoxy resins were cured with catalytic curing agents namely N, N dimethyl benzylamine and 2,4,6 Tris (dimethyl aminomethyl) phenol. The physical properties like evaporation loss, void percentage, leach resistance and compressive strength were determined and were compared with those of ordinary portland cement matrices (OPC). The void percentage was found to be lower in EPMC than in OPC. The compressive strength was observed to increase on the addition of epoxy resin. The nature of curing agents/hardeners was also observed to play a role in compressive strengths of the matrices. The solubilities of EPMC were characterized with respect to the release of calcium. The interaction between cement and curing agents was also studied by infrared spectroscopy.

• OSTI ID: 6292871
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 23:4; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ABSORPTION SPECTROSCOPY
AMINES
AROMATICS
BUILDING MATERIALS
CATALYTIC EFFECTS
CEMENTS
COMPRESSION STRENGTH
CURING
DISSOLUTION
ELECTROMAGNETIC RADIATION
EPOXIDES
EVAPORATION
HYDROXY COMPOUNDS
INFRARED RADIATION
LEACHING
LIQUID WASTES
MANAGEMENT
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHENOLS
PHYSICAL PROPERTIES
PROCESSING
RADIATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
SEPARATION PROCESSES
SOLIDIFICATION
SOLUBILITY
SPECTROSCOPY
VOID FRACTION
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES