Cement Concrete Pavement Cracks and Prevention

2011 ◽  
Vol 71-78 ◽  
pp. 3706-3711
Author(s):  
Yu Qiang Wang ◽  
Jian Qiu ◽  
Cun Guo Deng
Keyword(s):  
Structural Integrity ◽  
Concrete Pavement ◽  
Road Surface ◽  
Lower Body ◽  
Prevention Measures ◽  
Cement Concrete ◽  
Pavement Surface ◽  
Cement Concrete Pavement ◽  
Current Board ◽  
Surface Plate

The cement concrete pavement surface are high, and its rigid structural integrity depends on the integrity of institutions and the plate itself, the overall rigidity of the lower body performance. However, the current board of cement concrete pavement breaking, cracking of roads has become an important common quality problems. For cement concrete road surface plate, the type of cracking, resulting in destruction of the reasons, etc., proposed prevention measures and precautions for disposal for the relevant officers.

Skid-Resistance and Noise-Reducing Characteristics of Exposed-Aggregate Cement Concrete Pavement

2014 ◽  
Vol 1052 ◽  
pp. 352-357 ◽  
Author(s):  
Jiu Peng Zhang ◽  
Guo Qiang Liu ◽  
Peng Zhi Wang
Keyword(s):  
Traffic Noise ◽  
Concrete Pavement ◽  
Skid Resistance ◽  
Cement Concrete ◽  
Pavement Surface ◽  
Index Variation ◽  
Cement Concrete Pavement ◽  
New Type ◽  
The Relationship ◽  
Resistance Value

EACCP is a new-type cement concrete pavement with better skid-resistance and less traffic noise. In this paper, skid-resistance and noise-reducing performance of EACCP are tested and analyzed by laboratory and outdoor tests. The results indicate that the relationship between BPN and EAD is followed the parabola variation laws. With the increase of EAD, TD decreases. And skid-resistance value exists the extremum. If BPN is targeted as skid-resistance optimization goal for pavement surface features, the optimized EAD is existed and approximately to 40~60. The relationship between BPN and TD is also followed the parabola variation laws which also suggests the existence of the optimized TD scope approximately to 0.8~1.0mm.The relationship between TD and EAD can be simulated by index variation laws. With the increase of EAD, TD decreases, which proves the evident noise-reducing performance of EACCP. And the reduction amplitude of noise increases with vehicular acceleration.

Evaluation and Measurement Method for Texture Depth of Exposed-Aggregate Cement Concrete Pavement Surface Based on Digital Imaging Technique

2011 ◽  
Vol 460-461 ◽  
pp. 66-70
Author(s):  
Chen Ning
Keyword(s):  
Digital Image ◽  
Surface Texture ◽  
Measurement Method ◽  
Dimensional Space ◽  
Concrete Pavement ◽  
Least Square ◽  
Cement Concrete ◽  
Pavement Surface ◽  
Cement Concrete Pavement ◽  
Image Technique

In order to study the surface characteristics of exposed-aggregate cement concrete pavement, the measurement mechanism of surface texture depth was analyzed by using digital image technique. Based on the principle of least square and Table curve 3D software, two-dimensional digital image of road surface was reconstructed into three-dimensional space surface and a method of evaluating and measuring pavement surface texture depth was put forward. With this method， digital image samples were calculated and the results were compared with the results of conventional measurement method. The results indicate that exposed-aggregate cement concrete pavement has excellent road characteristics; there is a good correlation between the digital image technique and the traditional sand patch method and the relative error is less than 7 percent. Thus, the digital image technique is feasible in evaluating and measuring pavement surface texture depth.

Comparison of Skid Resistance and Noise between Transverse and Longitudinal Grooving Pavements in Newly Constructed Concrete Pavement

2012 ◽  
Vol 446-449 ◽  
pp. 2637-2640 ◽  
Author(s):  
Bo Li ◽  
Hong Wei Kang ◽  
Zheng Wei Zhang
Keyword(s):  
Surface Water ◽  
Portland Cement ◽  
Test Section ◽  
Concrete Pavement ◽  
Skid Resistance ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Pavement Surface ◽  
Cement Concrete Pavement ◽  
Portland Cement Concrete Pavement

Pavement grooving is generally used to reduce hydroplaning and accidents by providing escaping channels for surface water. But the direction of grooving has influence on its performance. The purpose of this study is to provide a comparison of longitudinal and transverse diamond grooving pavement surface for newly constructed Portland Cement Concrete Pavement (PCCP) in terms of skid-resistance and noise feature. The test-section is located in LI Jia-he Tunnel of Lantian-Shangluo expressway. The results show that the transverse grooving has a better performance to ensure the longitudinal skid resistance than that of longitudinal grooving pavement. However, the longitudinal grooving has a good performance of preventing vehicle side slipping and reducing the noise than that of the transverse grooving pavement.

Design of Concrete Pavement in the Považský Chlmec Tunnel

2018 ◽  
Vol 272 ◽  
pp. 305-312
Author(s):  
Libor Mařík ◽  
Matěj Bůžek
Keyword(s):  
Optimal Solution ◽  
Concrete Pavement ◽  
Tunnel Lining ◽  
Road Surface ◽  
Cement Concrete ◽  
The Road ◽  
Road Surfaces ◽  
Cement Concrete Pavement ◽  
Tunnel Lining Design ◽  
The Individual

Construction of the Považský Chlmec Tunnel on the D3 Highway in the stretch Žilina (Strážov) – Žilina (Brodno) is being finished and the last structure before installation of the technological equipment has been a concrete pavement and construction works related to design and construction of the pavement. The paper describes not only the issue of road structural layers according to the regulation TP098 Design of Cement Concrete Pavements on Roads, but especially on a specific example of a tunnel already built we demonstrate general particularities of road surfaces in road and highway tunnels. These are, in particular, engineering requirements on the subgrade and possibilities of its drainage, design of joints of the cement concrete pavement in relation to the tunnel lining design, ensuring the necessary long-term roughness of the road surface, design of entries of utility lines (cables, drains) below the road surface, structural details connected with placement of kerbs and channel drains, lay-bys, impacts of use of self-extinguishing road drainage components in the load bearing system of the tunnel lining and other seemingly independent structures, which, however, in the confined tunnel space influence each other substantially. The paper focuses also on construction of the individual road courses with a recommendation for measures to adopt in order to eliminate damage to the tunnel structures completed (in particular, pavements, channel drains and kerbs), coordination of the other works in the tunnel ensuring safety of all workers, logistics (transport of pavers and cement concrete mix) and other apparently tiny details, which result in safe and fast work when placing the road courses in a restricted tunnel space. In the paper, the authors have taken into account requirements of the road engineering segment and also geotechnical requirements and particularities of the tunnel construction and point out the necessity of a multi-professional approach to the design to achieve an optimal solution. Based on their own experience, at the end of the paper, the authors give recommendations on amending the standards and regulations, which in some cases do not allow for construction of road surfaces in tunnels (i.e. deep under the ground).

Application of MHB Technique in Superhighway Cement Concrete Pavement Resurfacing Projects

2014 ◽  
Vol 587-589 ◽  
pp. 1043-1046
Author(s):  
Yu Ting Hu ◽  
Lan Mu ◽  
Zhan Liang Liu ◽  
Yu Lin Du
Keyword(s):  
Quality Control ◽  
Environmentally Friendly ◽  
Concrete Pavement ◽  
Control Measures ◽  
Cement Concrete ◽  
Construction Quality ◽  
Machinery Construction ◽  
Construction Machinery ◽  
Pavement Surface ◽  
Cement Concrete Pavement

MHB technique is applied, in superhighway cement concrete pavement resurfacing project (“white to black” project in short), to break the pavement surface and build the new pavement taking the broken one as the base or subbase, which makes good use of the remains in a very economical and environmentally friendly way, and solves the problem of reflective cracks appearing on the pavement surface after reconstruction as well. This thesis confirms the relevant parameters of MHB construction machinery, construction quality and intensity testing, etc by making researches in test sections, discusses the key process in construction with MHB technique and the relevant quality control measures during construction, and puts forward the ideas of reconstructing the pavement with MHB technique while making no influence on the superhighway traffic, even when the traffic if heavy.

Stress Analysis of Cement Concrete Pavement under Overweight Loads

2012 ◽  
Vol 446-449 ◽  
pp. 949-953
Author(s):  
Ya Ni Lu ◽  
Tao Li Xiao
Keyword(s):  
Finite Element ◽  
Regression Analysis ◽  
Finite Element Model ◽  
Element Model ◽  
Concrete Pavement ◽  
The Other ◽  
Tension Stress ◽  
Statistical Regression ◽  
Cement Concrete ◽  
Cement Concrete Pavement

Special load has produced serious damage to the concrete pavement because of the great gross weight and heavy axle load, but the present specification has not mentioned this kind of load. On this occasion, Several conditions of critical load are identified through ANSYS finite element model analysis and the formula through statistical regression analysis to the bottom maximum tension stress is drawn up. Which can not only guide the concrete pavement design under the special load but also the result may be referred by the other kinds of engineering.

Sign in / Sign up

Export Citation Format

Share Document