scholarly journals Experimental Study on Permanent Deformation of Base Course Surface in Concrete Pavement.

2002 ◽  
pp. 117-127
Author(s):  
Yasushi TAKEUCHI ◽  
Masashi KOYANAGAWA ◽  
Tatsuo NISHIZAWA ◽  
Etsuro NODA ◽  
Kazuyuki KUBO
Keyword(s):  
Experimental Study ◽  
Permanent Deformation ◽  
Concrete Pavement ◽  
Base Course

scholarly journals Influence of Hydrated Lime on the Properties and Permanent Deformation of the Asphalt Concrete Layers in Pavement

2015 ◽  
Vol 4 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Ahmed F. Al-Tameemi ◽  
Yu Wang ◽  
Amjad Albayati
Keyword(s):  
Asphalt Concrete ◽  
Raw Materials ◽  
Permanent Deformation ◽  
Fatigue Cracking ◽  
Hydrated Lime ◽  
Concrete Pavement ◽  
Partial Replacement ◽  
Repeated Loading ◽  
Concrete Mixtures ◽  
Asphalt Concrete Pavement

Abstract Flexible or asphalt concrete pavement is the paving system most widely adopted all over the world. It has been recognized that there are many different types of the factors affecting the performance and durability of asphalt concrete pavement, including the service conditions, such as: the variation of temperature from mild to extremes and the repeated excessive axle loading as well as the inadequate quality of the raw materials. All of these when combined together are going to accelerate the occurrence of distresses in flexible pavement such as permanent deformation and fatigue cracking. As the result, there has an urgent need to enhance the ability of asphalt concrete mixture to resist distresses happened in pavement. Use of additives is one of the techniques adopted to improve pavement properties. It has been found that hydrated lime might be one of the effective additives because it is widely available and relatively cheap compared to other modifiers like polymers. This paper presents an experimental study of the hydrated-lime modified asphalt concrete mixtures. Five different percentages of the hydrated lime additive were investigated, namely (1, 1.5, 2, 2.5 and 3 percent). The hydrated lime additive was used as partial replacement of limestone filler by total weight of the aggregate. The designed Hot Mix Asphalt (HMA) concretes are for the application of three pavement courses, i.e. Surface, Leveling and Base. These mixtures are designed and tested following Marshall procedure and uniaxial repeated loading to evaluate permanent deformation at different temperatures of 20°C, 40°C and 60°C. The experimental results show that the addition of hydrated lime as a partial replacement of ordinary limestone mineral filler results a significant improvement on mechanical properties and the resistant to permanent deformation of the designed asphalt concrete mixtures.

Study on the Technology of Exposed-Aggregate Roller Compacted Concrete Pavement Used in Tunnels

2011 ◽  
Vol 255-260 ◽  
pp. 3211-3216
Author(s):  
Ming Tang ◽  
Xiao Bo Mu ◽  
Yong Tian
Keyword(s):  
Experimental Study ◽  
High Performance ◽  
Concrete Pavement ◽  
Strength Grade ◽  
Roller Compacted Concrete ◽  
Strength Change ◽  
One Year ◽  
The Stability

According to preparation of noise-reducing concrete with the technology of exposed-aggregate, this paper exploits high performance roller compacted concrete used in tunnels. Based on optimizing proportion, exploiting special exposed-aggregate agent and corollary technology, it is necessary that the high strengthening and the stability in the Course of Using of the exposed-aggregate roller compacted concrete should be further studied. During the study on the properties of strength change of common strength grade exposed-aggregate roller compacted concrete pavement, it found that its strength varied from 38.6MPa to 19.2MPa when the depth of exposed-aggregate reached 3mm.This is the main reason that serious damage occurred in one tunnel pavement which is used less than one year. Consequently, this paper carried out experimental study of high strengthening. Furthermore, this paper have been optimized the parameters of exposed-aggregate roller compacted concrete. And the effect is relatively remarkable.

Experimental study on fatigue strength of airport concrete pavement slab

2020 ◽  
pp. 121493
Author(s):  
Cheng Hu ◽  
Xingzhong Weng ◽  
Jun Zhang ◽  
Wei Xu ◽  
Bo Qu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fatigue Strength ◽  
Concrete Pavement
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