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Monday, July 27, 2020 | History

4 edition of Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat found in the catalog.

Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat

Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat

the SURC-1 experiment

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  • 5 Currently reading

Published by Division of Systems Research, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, Supt. of Docs., U.S. G.P.O. [distributor] in Washington, DC .
Written in English

    Subjects:
  • Concrete -- Thermal properties -- Research.,
  • Limestone -- Research.,
  • Nuclear pressure vessels -- Accidents -- Research.

  • Edition Notes

    Other titlesCore concrete interactions using molten urania with zirconium on a limestone concrete basemat.
    Statementprepared by E.R. Copus ... [et al.].
    ContributionsCopus, E. R., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Systems Research., Sandia National Laboratories.
    The Physical Object
    FormatMicroform
    Pagination1 v. (various pagings)
    ID Numbers
    Open LibraryOL18060480M
    ISBN 100160404932
    OCLC/WorldCa29632128

    the effective atomic number (Zeff) of limestone concrete for 0%, 2%, 4%, 6% and 8% of water have been calculated at different scattering angles of o, o, o, o, o and o for keV gamma energy and at two .   The limestone acts as a seed crystal for the cement, better distributing the reaction products and increasing the reactivity of the cement. As there is always unhydrated cement in the concrete, this change will have no real measurable effect on the use of fly ash. The cement might have a reduced water demand, and the coarser cement gradation.

    Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat. Core-concrete interactions using molten UO sub 2 with zirconium on a basaltic basemat: The SURC-2 experiment. Curing plays an important role on strength development and durability of concrete. Curing takes place immediately after concrete placing and finishing, and involves maintenance of desired moisture and temperature conditions, both at depth and .

      The major environmental impact of concrete comes from CO₂ emissions during cement production. The main goal of this research was to develop an optimized cement replacement in order to reduce energy consumption and CO₂ emissions. This was tested by incorporating limestone powder in concrete to meet construction specifications. This study utilized limestone .   The addition of limestone powder tends to increase the long-term connected porosity of concrete and the pore structure of hardened paste. The strength and resistance to chloride penetration of the concrete containing limestone powder increase much less than those of plain cement concrete at late ages.


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Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat Download PDF EPUB FB2

@article{osti_, title = {Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat}, author = {Copus, E R and Brockmann, J E and Simpson, R B and Lucero, D A and Blose, R E}, abstractNote = {An inductively heated experiment SURC-1, using UO[sub 2]-ZrO[sub 2] material, was executed to measure and assess the thermal, gas, Cited by: 3.

Get this from a library. Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat: the SURC-1 experiment. [E R Copus; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Systems Research.; Sandia National Laboratories.;].

An experiment was performed in order to evaluate the additional effects of zirconium metal oxidation on core debris interactions using molten stainless steel as the core debris simulant. The SURC-4 experiment eroded a total of 25 cm of basaltic concrete during 62 minutes of sustained interaction.

The MOCO code calculations for molten core concrete interaction under severe accidents are performed in order to understand the physical phenomena of MCCI. While the calculation results are compared with selected three experimental data, several areas are identified where future model development is required, and MOCO improvement needs have Cited by: 4.

Molten Core Concrete Interaction (MCCI) is a complex process characterized by concrete ablation and volatile generation; Thermal and solutal convection in a bubble-agitated melt; Physico-chemical Author: Christophe Journeau.

Core-Concrete Interactions using Molten UO2 with Zirconium on a Basaltic Basemat: The SURC-2 Experiment. NUREG/CR, SAND, R3, R4, R7. Deutsche Risikostudie Kernkraftwerke, We use cookies to make interactions with our website easy and meaningful, to better understand the use of our services, and to tailor advertising.

For further information, including about cookie. Core-Concrete Interactions Using Molten Urania With Zirconium on a Limestone Concrete Basemat, The SURC-1 Experiment, NUREG/CR, Sandia National Lab.

Google Scholar Cranga et al.,   E.R. Copus, J.E. Brockmann, R.B. Simpson, D.A. LuceroCore-concrete interactions using molten UO 2 with Zirconium on a Basaltic Basemat NUREG/CR, SAND Sandia National Laboratories () Google Scholar.

The solidification phases of molten core–concrete under the estimated molten core–concrete interaction (MCCI) conditions in the Fukushima Daiichi Nuclear Power Plant. The vaporization of core-concrete mixtures is being measured using a transpiration method.

Mixtures of stainless steel, concrete (limestone or basaltic) and urania (doped with La/sub 2/O/sub 3/, SrO, BaO, and ZrO/sub 2/) are vaporized at - K from a zirconia crucible into flowing He - 6% H/sub 2/ gas. The concrete basemat proportion and properties are listed in Table 3 R. BloseCore-concrete interactions using molten urania with zirconium on a limestone concrete basemat.

Nuclear Regulatory Commission, Washington, DC (United States) () Google Scholar. Brockmann's 79 research works with citations and 1, reads, including: Experimental Study of Impulse Resuspension with Laser Doppler Vibrometry.

the most direct impact on the core-concrete interactions process is that describing the heat transfer across the melt-concrete interface. The extent of concrete abla. Core-Concrete Interactions Using Molten Steel With Zirconium on a Basaltic Basemat: The SURC-4 Experiment,” United States Nuclear Regulatory Commission, Rockville, MD, Report No.

NUREG/CR– 4. Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat Technical Report Copus, E R ; Brockmann, J E ; Simpson, R B ; An inductively heated experiment SURC-1, using UO[sub 2]-ZrO[sub 2] material, was executed to measure and assess the thermal, gas, and aerosol source terms produced during core debris.

An experimental study of the downward penetration of molten UO/sub 2/ into substrate limestone concrete was conducted.

The purpose of this study is to qualitatively understand penetration of UO/sub 2/ into concrete and the dissolution nature of concrete constituents in UO/sub 2/.

11 refs. Concrete is the most often used construction material of the modern world. It is simple and economic to make and if the Egyptians had known the secret they could have made it years ago. To make concrete, first you need to make the cement (or mortar) that holds the concrete.

added as an aggregate to the concrete mix • Limestone blended cements (Type IL) are classified through ASTM C ASTM C was recently modified to allow for 15% of cement clinker to be replaced with ground limestone by mass • Separately to Type IL, precast suppliers in GA have been using ground limestone powder.

Cements makes up between 10% to 15% of concrete’s total mass; though of course the exact proportions may vary from one mixture to the next, depending on the type of concrete is being made.

To make Portland cement—the most common type of cement—powdered limestone is heated in a rotary kiln. Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat 94 In this section, the temperature data obtained in the SURC-1 experiment will be used to describe the thermal response of the three regions of melt/ concrete interactions, the magnesium oxide annulus and crucible cover.Hydrogen Permeation in Zirconium Using a Molten Salt Devanathan-Stachurski Electrochemical Cell.

Monday, 2 October National Harbor 5 (Gaylord National Resort and Convention Center) R. A. Carvajal-Ortiz, S. B. Lyon, M. Preuss (The University of Manchester), and A. Ambard (Electricité de France, EdF R&D).Core-concrete interactions using molten urania with zirconium on a limestone concrete basemat Schematic diagram of the opacity meter used on -1test showing how Sensing Technology: Current Status and Future Trends IV.