An Experimental Study of the Complex Dynamic Modulus

2009 ◽  
pp. 58-58-17 ◽  
Author(s):  
GG Wren ◽  
VK Kinra
Keyword(s):  
Experimental Study ◽  
Dynamic Modulus ◽  
Complex Dynamic

Experimental Study of Performance of Asphalt Mixture under Freeze-Thaw Circle Test

2013 ◽  
Vol 723 ◽  
pp. 353-360
Author(s):  
Li Bo Gao ◽  
Xing Hua Fan ◽  
Ming Gao ◽  
Feng Cheng Wang
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Fatigue Life ◽  
Quantitative Analysis ◽  
Dynamic Modulus ◽  
Asphalt Mixture ◽  
Freeze Thaw ◽  
Splitting Strength ◽  
Dynamic Creep ◽  
Road Performance

This paper has studied the mechanical properties (freeze-thaw splitting strength, and dynamic modulus) and road performance (dynamic creep and fatigue life) of the asphalt mixture under the freeze-thaw circle test, and made the quantitative analysis of the influence on the material performance under freeze-thaw circle test.

Experimental Study of Dynamic Test Characteristics on Nanjiang Road Bridge

2014 ◽  
Vol 501-504 ◽  
pp. 1378-1381
Author(s):  
Jia Mei Zhao ◽  
Bo Liu ◽  
Yu Liang Zhang
Keyword(s):  
Experimental Study ◽  
Natural Frequency ◽  
Dynamic Modulus ◽  
Damping Ratio ◽  
Dynamic Test ◽  
Vibration Characteristics ◽  
Test Characteristics ◽  
Crack Condition

Dynamic test has been carried out to completed road bridge of Nanjiang Port inTianjin. When cars were passing through the bridge, the dynamic deflections, the maximum amplitudes, the relation between amplitude and velocity, the Natural frequency and the damping ratio were gained. Dynamic modulus, vibration characteristics and crack condition of the bridge were determined so as to ascertain the reliability of the bridge.

Experimental Study of Compression and Carbonation in Concrete Subjected to Freeze-Thaw Environment

2014 ◽  
Vol 887-888 ◽  
pp. 814-818
Author(s):  
Li Xue Wang ◽  
Xiao Ting Shan ◽  
Yu Qing Zhang ◽  
Chun Sheng Li ◽  
Zai Xing Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Modulus Of Elasticity ◽  
Dynamic Modulus ◽  
Test Method ◽  
Carbonation Depth ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Freeze Thaw ◽  
Concrete Properties

In order to research the changes of concrete properties in freeze-thaw environment, five concrete samples with water-cement ratio respectively equal to 0.60, 0.65, 0.70, 0.75 and 0.80 were tested in freeze-thaw environment according to GB/T50082-2009 concrete rapid freeze-thaw cycles test method. Five samples were carried out 0, 25, 50, 75, 100 times faster freeze-thaw cycles test. With the increasing number of freeze-thaw cycles, the concrete relative dynamic modulus of elasticity loss rises, the compressive strength drops, and the carbonation depth increases. The greater the water-cement ratio of concrete specimens with freeze-thaw cycles, the greater the degree of damage increases.

An Experimental Study on the Frost Resistance of High Performance Concrete Using Fly-Ash and Agent

2017 ◽  
Vol 904 ◽  
pp. 179-184
Author(s):  
Seung Jo Lee
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Fly Ash ◽  
Modulus Of Elasticity ◽  
Dynamic Modulus ◽  
Frost Resistance ◽  
High Performance ◽  
High Performance Concrete ◽  
Strength Increase ◽  
Freeze Thaw

The purpose of this study is to investigate the freeze-thaw resistance, one of the most important durability indicators, of high-performance concrete made of fibers (nylon and polypropylene), AE agent, viscosity agent, and fly ash, an industrial by-product. While FN-1 showed the best freeze-thaw resistance with an about 2.8% relative dynamic modulus of elasticity, PV-2 showed the worst results, with an about 7.4% modulus, in comparison tests with GC. Most of the test samples showed better compressive strength than GC. Especially, N-1 showed the greatest compressive strength increase of 8%. Also, the test samples mixed with FA and PP showed a 2-4% compressive strength increase effect.

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