Understanding the tensile properties of concrete by Jaap Weerheijm

By Jaap Weerheijm

This publication appears extensive on the homes and behaviour of concrete lower than rigidity, a phenomenon which may reason catastrophic failure of concrete buildings whether it is now not appropriately factored into the layout degree.  

After an creation to concrete, the booklet is split into elements: half one on static reaction and half on dynamic reaction. half one starts off with a precis bankruptcy at the most crucial parameters that impact the tensile reaction of concrete. bankruptcy 3 exhibits how multi-scale modeling is used to narrate concrete composition to tensile houses. half starts off via explaining the several regimes of dynamic loading, starting from the low frequency loading by way of wind or earthquakes as much as the extraordinary dynamic stipulations because of explosions and ballistic affects. Chapters evaluation dynamic trying out recommendations and units that care for many of the regimes of dynamic loading and spotlight the dynamic habit of concrete from assorted viewpoints. the realization includes functional examples of ways distinct wisdom on tensile homes is utilized by engineers in structural functions.

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3] with T = temperature in °C. By evaluating the formulas it appears that, at a temperature of 0°, the strength increases by 6–16% while higher temperature lead to substantial decrease of the strength values. The basis of the formulas was a thorough literature review. Temperatures of 80°C can occur in storage tanks of warm water, in chimneys, and in cooling towers. In case of fire, concrete is exposed to much higher temperatures, up to 1000 °C and, in a hydrocarbon fire, even up to 1300°C. 6 Normalized tensile strength as function of temperature (Bažant and Kaplan, 1996).

And Odler, I. ), Proc. Materials Science of Concrete © Woodhead Publishing Limited, 2013 Introduction to concrete: a resilient material system 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 15 Special Volume: Calcium Hydroxide in Concrete, The American Ceramic Society. November 1–3, 2000, Anna Maria Island, Florida, 59–72. Mindess, S. F. (1981), Concrete, Prentice Hall, Englewood Cliffs, NJ Breugel, K. van (1997), Simulation of hydration and formation of structure in hardening cement-based materials, Delft University Press.

Bisschop, J. (2002), Drying shrinkage microcracking in cement-based materials. PhD thesis Delft University of Technology, Delft University Press, the Netherlands, ISBN 90–407–2341–9 (2002) 208 p. , Weerheijm, J. G. and Breugel, K. (2013), Investigating porous concrete with improved strength: testing at different scales. Constr Build Mater, 41: 480–490. © Woodhead Publishing Limited, 2013 2 Factors affecting the tensile properties of concrete H. W. 19 Abstract: This chapter reviews various influences that affect the tensile strength of concrete.

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