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Study irradiation damage by fast neutrons in Portland cement by means of ultra-sound; Estudo de danos de irradiacao com neutrons rapidos por meio de ultra-som em cimento Portland

Thesis/Dissertation:

Abstract

The effect of neutron irradiation in samples of Portland cement paste was evaluated, using the resonance frequency method and pulse velocity of ultra-sound technique. The samples were divide in three groups: 1) Monitoring samples; 2) Samples to gamma heating simulation; 3) Fast neutron irradiated samples in reactor core. Santa Rita Portland cement was utilized for samples preparation with water-cement rate of 0,40 l/kg. The irradiation was performed in the research reactor IEA-R1, at IPEN-CNEN/SP, with an integrated flux of 7,2 X 10 sup(18) n/cm sup(2) (E approx. 1 Mev). The samples of group 2 were submitted to special micro-waves heat treatment-with the same number of cycles of the reactor-which allowed the detection of fast neutron radiation effects within the predominant thermal effects. (author).
Publication Date:
Dec 31, 1988
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-2853
Reference Number:
SCA: 360605; PA: AIX-23:010923; SN: 92000637682
Resource Relation:
Other Information: TH: Tese (M.Sc.).Thesis; PBD: 1988
Subject:
36 MATERIALS SCIENCE; CEMENTS; FAST NEUTRONS; PHYSICAL RADIATION EFFECTS; ULTRASONIC WAVES; IEAR-1 REACTOR; 360605; RADIATION EFFECTS
OSTI ID:
10111863
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE92613450; TRN: BR9228249010923
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
89 p.
Announcement Date:
Jun 30, 2005

Thesis/Dissertation:

Citation Formats

Rosa, Junior, A A. Study irradiation damage by fast neutrons in Portland cement by means of ultra-sound; Estudo de danos de irradiacao com neutrons rapidos por meio de ultra-som em cimento Portland. Brazil: N. p., 1988. Web.
Rosa, Junior, A A. Study irradiation damage by fast neutrons in Portland cement by means of ultra-sound; Estudo de danos de irradiacao com neutrons rapidos por meio de ultra-som em cimento Portland. Brazil.
Rosa, Junior, A A. 1988. "Study irradiation damage by fast neutrons in Portland cement by means of ultra-sound; Estudo de danos de irradiacao com neutrons rapidos por meio de ultra-som em cimento Portland." Brazil.
@misc{etde_10111863,
title = {Study irradiation damage by fast neutrons in Portland cement by means of ultra-sound; Estudo de danos de irradiacao com neutrons rapidos por meio de ultra-som em cimento Portland}
author = {Rosa, Junior, A A}
abstractNote = {The effect of neutron irradiation in samples of Portland cement paste was evaluated, using the resonance frequency method and pulse velocity of ultra-sound technique. The samples were divide in three groups: 1) Monitoring samples; 2) Samples to gamma heating simulation; 3) Fast neutron irradiated samples in reactor core. Santa Rita Portland cement was utilized for samples preparation with water-cement rate of 0,40 l/kg. The irradiation was performed in the research reactor IEA-R1, at IPEN-CNEN/SP, with an integrated flux of 7,2 X 10 sup(18) n/cm sup(2) (E approx. 1 Mev). The samples of group 2 were submitted to special micro-waves heat treatment-with the same number of cycles of the reactor-which allowed the detection of fast neutron radiation effects within the predominant thermal effects. (author).}
place = {Brazil}
year = {1988}
month = {Dec}
}