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Studies of light backscattering at concrete during its hydration
Gorsky M.P., Maksimyak P.P., Maksimyak A.P.

Correlation Optics Department, Chernivtsi National University 2 Kotsyubynsky St., Chernivtsi, Ukraine

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In this work we have studied, both theoretically and experimentally, changes in the integral reflection coefficient of concrete during its hydration. A diffuse approximation method has been used for description of light scattering at concrete during its hydration and the results have been compared with the experimental data obtained. The optical diagnostics technqiue introduced by us allows performing diagnostics of earlier hydration stages in the concrete hardening process and predicting mechanical properties of the concrete produced.

Keywords: backscattering, diffuse approximation, concrete hydration

PACS: 41.85.Ja; 42.25.Bs
UDC: 535.36
Ukr. J. Phys. Opt. 10 134-149   doi: 10.3116/16091833/10/3/134/2009
Received: 30.03.2009

Анотація. У даній роботі нами теоретично і експериментально досліджено зміни сумарного коефіцієнта відбивання бетону під час його гідратації. Для опису розсіяння світла бетоном, у процесі його гідратації, був використаний метод дифузного наближення, а результати були порівняні з отриманими експериментальними даними. Запропонований нами оптичний метод дозволяє забезпечувати діагностику ранніх стадій гідратації при затвердінні бетону і передбачити його механічні властивості.
REFERENCES
  1. Gorskiy V F, Plugging materials and solutions. Handbook. Chernivtsi: Oblpoligrafvydav (2006).
  2. Lee F M, The chemistry of cement and concrete, 3rd ed., New York: Chemical Publishing Company (1971).
  3. Ramachandran V S and Beaudoin J J, Handbook of analytical techniques in concrete, National Research Council of Canada, New York: William Aandrew Publishing, LLC (2001).
  4. Bulatov A I and Danyushevskiy V S, Plugging materials reference manual. Moscow: Nadra (1987).
  5. Ferraris C F, Hackley V and Aviles A I, 2004. Measurement of particle size distribution in Portland cement powder: analysis of ASTM round robin studies. Cement, Concrete and Aggregates. 26: 1-11.
  6. GOST 310.3-76. Cements. Methods of definition of normal density, terms of harden and uniformity of change of volume.
  7. GOST 310.1-76. Cements. Test methods. General provisions.
  8. Gorsky M P, Gorskiy V F, Maksimyak P P and Gorskiy P V, 2006. Study of cement hydration by coherent light scattering. Equip.Techn. for Oil and Gas Ind. 5: 42-45.
  9. Gorsky M P, Maksimyak A P and Maksimyak P P, 2007. Study of speckle-field dynamics scattered by surface of concrete during congelation. Proc. SPIE 6635: 66350E. doi:10.1117/12.741877
  10. Ishimaru A, Wave propagation and scattering in random media. Vol.1, 2. New York: Academic Press (1978).
  11. Born M and Wolf E, Principles of optics. New York: Cambridge: University Press (1999).
  12. Akkermans E, Wolf P E, Maynard R and Maret G, 1988. Theoretical study of the coherent backscattering of light by disordered media. J. Phys. France 49: 77–98. doi:10.1051/jphys:0198800490107700
  13. Jos Stam, Multiple scattering as a diffusion process. Eurographics Rendering Workshop (1995).
  14. Morse P M and Feshbach H, Methods of theoretical physics. New-York: McGraw-Hill (1953).
(c) Ukrainian Journal of Physical Optics