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The Ratio between Static and Dynamic Modulusof Elasticity in Normal and High Strength Concrete | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 10, Issue 2, 2006, Pages 163-174 | ||
| Authors | ||
| Ali H. Al-Amawee; Mohammed M. Salman | ||
| Abstract | ||
| There is a simple linear relationship between the static and dynamic elastic module, this lead to hope that using dynamic elastic modulus may remove the problems in measuring the static elastic modulus of concrete. Normal strength concrete (mix (1)) exhibited lower dynamic modulus of elasticity than that of high strength concrete (mix (2)). The reason for that was the difference in the quality of past, due to the difference in the water content of these mixes. Type (HB) the quartz is higher in static modulus of elasticity of concrete for cylinder specimens than types HA (dolomite), HD (dolomite content organic), HF (round gravel), HE (rough gravel) and HC (calcite) by (9%), (19%), (20%), (21%) and (25%) respectively in 91 days. Type (HB) the quartz is higher in dynamic modulus of elasticity of concrete for cylinder specimens than types HA (dolomite), HC (calcite), HD (dolomite content organic), HF (round gravel), and HE (rough gravel) by (4%), (22%), (23%), (23%) and (25%) respectively in 91 days. The ratio of static modulus of elasticity of concrete to the dynamic modulus of elasticity of concrete (Ec/Ed) for the normal strength concrete (mix (1)) is between (36 to 55%). While for high strength concrete (mix (2)) the ratio is between (15 to 27%). | ||
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