Energy Consumption and Noise Reduction Research of Fiber and Rubber Powder in Cement Concrete Pavement

2014 ◽  
Vol 953-954 ◽  
pp. 1609-1613
Author(s):  
Jun Yong He ◽  
Li Ning Yao ◽  
Cheng Yu Tian

An experimental study was performed on the energy consumption and noise reduction of cement concrete. The results showed that the modulus of flexure,natural frequencies and logarithmic attenuation rate of concrete decreased when fiber and rubber powder were added together, at the same time, the critical damping ratio of concrete increased. Therefore,it played a very important role in energy consumption and noise reduction of cement concrete pavement when fiber and rubber powder were rationally added.

2017 ◽  
Vol 100 ◽  
pp. 03029 ◽  
Author(s):  
Hongliang Tao ◽  
Chen Chen ◽  
Ping Jiang ◽  
Shuaihong Huang

2013 ◽  
Vol 368-370 ◽  
pp. 929-932
Author(s):  
Bin Yang ◽  
Jiang Wang ◽  
He Yuan Yang ◽  
Ling Nian Zeng ◽  
Chao Feng ◽  
...  

Small sized specimen of cement concrete pavement structure was prepared indoors. By utilizing the dynamic signal tester and obtaining the vibration frequency domain signals through the falling-ball vibration impact test method, the attenuation rules of the vibration response of the pavement structure were analyzed and the effects of the flexible functional layer on the vibration-reduction and energy-absorption were studied. The results showed that, after compared with the normal flexible functional layer, the flexible functional layer incorporated with rubber powder resulted in the pavement structure having the better capacities of vibration-reduction energy-absorption and impact resistance. Accordingly, the rupture failure of the cement concrete pavement induced by vehicle load can be reduced.


2012 ◽  
Vol 204-208 ◽  
pp. 1875-1879
Author(s):  
Chen Guang Fan ◽  
Bin Luo ◽  
Zhi Wei Xiong

Resonant pavement breaker is an excellent technique to reform worn cement concrete pavement (PCC). When the frequency of the machine adjusted to the resonant frequency of the worn cement concrete pavement, the pavement will be broken to discrete blocks. For the full use of this technique, this article studied the dynamic properties such as natural frequencies and modalities of worn cement concrete pavements of national secondary road. FEM was used to discretize models of different damaged degrees. The influence of different damaged degrees on natural frequencies and modes was studied. It was discovered that the new cement concrete pavement’s frequency was bigger than worn ones, and the modes were influenced by the damage locations and their degrees, the more worn, the more irregular.


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