The development of a grid/geotextile composite for bituminous pavement reinforcement

According to retaining walls of joint construction buildings and office building of the mine of three yuan weizi town, outdoor pavement reinforcement of engineering practice, introduced the design parameters and construction process of the high-pressure jet grouting pile, soil nail wall and drilling grouting, the results showed that reinforcement scheme is reasonable and feasible, there is reference to other similar projects.

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Fiber Optics for Evaluation of Pavement Reinforcement Materials in Resisting Reflection Cracking

Transportation Research Record Journal of the Transportation Research Board ◽

10.1177/0361198196153600121 ◽

1996 ◽

Vol 1536 (1) ◽

pp. 140-145 ◽

Cited By ~ 1

Author(s):

Mohamed Abdel-Mooty ◽

El-Hussein H. Mohamed ◽

Joseph Haddad

Keyword(s):

Fiber Optics ◽

Asphalt Concrete ◽

Fiber Optic ◽

National Research Council ◽

Fiber Optic Sensor ◽

Laboratory Evaluation ◽

Reflection Cracking ◽

Fiber Optic Strain Sensors ◽

Pavement Reinforcement ◽

Asphalt Concrete Pavement

A major maintenance problem of pavement is the reflection cracking of pavement overlays at the location of joints and cracks in the underlayers. Pavement reinforcement materials (PRM) are used to reinforce the asphalt concrete (AC) overlay to delay reflection cracking. Assessing the effectiveness of PRM in limiting reflection cracking can be achieved by direct measurement of strain distribution within the PRM and AC overlay. A fiber-optic sensor is the only alternative that is compatible with the fiberglass structure of the PRM used in this study and, therefore, is used to measure strain within the PRM. A program of investigation, developed at the Institute for Research in Construction of the National Research Council Canada, aims at studying the state of stress leading to joint opening in pavement layers and assessing the effectiveness of PRM in reducing such cracks through monitoring the performance of PRM using embedded fiber-optic strain sensors. The investigation involves both laboratory testing and long-term field monitoring of instrumented road section. The instrumentation aspect of the laboratory evaluation of PRM effectiveness using embedded fiber-optic sensors is described. An instrumentation procedure is developed that includes sensor mounting and embedding, mechanical protection, calibration, and data acquisition system. The performance of the developed monitoring system in asphalt concrete pavement specimens is assessed in controlled laboratory conditions.

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Laboratory characterisation of optimised geocomposites for asphalt pavement reinforcement

Geosynthetics International ◽

10.1680/gein.13.00032 ◽

2014 ◽

Vol 21 (1) ◽

pp. 24-36 ◽

Cited By ~ 15

Author(s):

E. Pasquini ◽

M. Bocci ◽

F. Canestrari

Keyword(s):

Asphalt Pavement ◽

Pavement Reinforcement

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Low-Temperature Stresses and Fracture Analysis of Asphalt Overlays

Transportation Research Record Journal of the Transportation Research Board ◽

10.1177/0361198196153900118 ◽

1996 ◽

Vol 1539 (1) ◽

pp. 132-139

Author(s):

A. Shalaby ◽

A. O. Abd El Halim ◽

S. M. Easa

Keyword(s):

Three Dimensional ◽

Thermal Cracking ◽

Multiple Cracks ◽

Element Analysis ◽

Thermal Cracks ◽

Balance Principle ◽

Thermoelastic Response ◽

Transient Thermal ◽

Asphalt Overlays ◽

Pavement Reinforcement

Thermal cracking of asphalt overlays is a leading cause of pavement deterioration. The thermoelastic response of a multilayered pavement structure is modeled using a transient thermal analysis followed by a quasi-static stress analysis at discrete time intervals using finite element analysis. Numerical analysis of two- and three-dimensional cracking problems is performed. Based on a fracture mechanics approach, the potential of thermal cracks to propagate through the overlay is examined using both a displacement formula and an energy-balance principle. The interaction between multiple cracks and the effect of bond between layers on crack propagation are examined. The proposed numerical methods for analysis of pavement thermal cracking provide a means to characterize and optimize different evolving materials and innovative pavement reinforcement techniques.

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BRIDGE RE-DESIGN CLASS A COMPOSITE GIRDER (GIRDER BRIDGE CASE STUDY OF COMPOSITE CLASS C+) RANTAU BAKULA BANJAR DISTRICT

CERUCUK ◽

10.20527/crc.v3i1.1105 ◽

2019 ◽

Vol 3 (1) ◽

pp. 73

Author(s):

Riyan Noor Cahyo ◽

Syahril Taufik

Keyword(s):

Structural Design ◽

Steel Structures ◽

Composite Girder ◽

Composite Bridges ◽

Earthquake Load ◽

Brake Force ◽

Bridge Girder ◽

X 32 ◽

Girder Bridge ◽

Pavement Reinforcement

In Rantau Bakula village are its main bridge girder composite construction. Due to the condition of the existing bridge is felt not designed for vehicles with a large payload then re-design bridge girder composite with spans of 25 m and 9 m wide bridge.In this planning will be carried out load analyzes include: self weight, additional dead load (weight of asphalt and rainwater), load lane "D", pedestrian live load, brake force, load the truck "T", the wind load and earthquake load. Loading method refers to the imposition Standards For RSNI Bridge T-02-2005 whereas the method of structural design of composite bridges refers RSNI T-03-2005 Steel Structural Design For Bridge and SNI 03-1729-2002 on Procedures Design Steel Structures. From the planning to the pavement reinforcement obtained using principal reinforcement D 13-150 mm with shear D 13-90 mm. The main girder profiles used WF 900 x 300 x 16 x 32 and diaphragm WF 400 x 200 x 8 x 13 shear connector used stud with a size of 12 x 190 mm. The connection between girders using screws with a diameter of 20 mm. Abutment has a height of 2.75 m and a length of 10 m. Used caisson foundation amounted to 2 pieces with a length of 2 meters and a diameter of 3.5 m. Keywords: Rantau Bakula, bridge, girders, composite abutments, caisson.

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Effect of the Retarder for Grouting Materials in Pavement Reinforcement

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/631/2/022049 ◽

2019 ◽

Vol 631 ◽

pp. 022049

Author(s):

Chen Nan

Keyword(s):

Grouting Materials ◽

Pavement Reinforcement

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Study of Divergences between Modelling and Site Works Applied to Geosynthetics Road Uses

Proceedings ◽

10.3390/proceedings2019038007 ◽

2019 ◽

Vol 38 (1) ◽

pp. 7

Author(s):

Candel ◽

Roldán-Oliden ◽

Calvo-Jurado

Keyword(s):

Mathematical Models ◽

Field Works ◽

Pavement Reinforcement

Geosynthetics are commonly used in pavement reinforcement works. There are many references that show and quantify the benefits of their use, but not many of them discuss about their implementation on site. The aim of this paper is to identify the deviation between the empirical statements and the reality, that can be observed in field works. For that purpose, the different stages of several reinforcement operations have been monitored. The results show common execution mistakes that could make differ the properties measured on field from those obtained in the laboratory or mathematical models.

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Sensitivity Analysis of Determining the Material Parameters of an Asphalt Pavement to Measurement Errors in Backcalculations

Materials ◽

10.3390/ma14040873 ◽

2021 ◽

Vol 14 (4) ◽

pp. 873

Author(s):

Paweł Tutka ◽

Roman Nagórski ◽

Magdalena Złotowska ◽

Marek Rudnicki

Keyword(s):

Fatigue Life ◽

Measurement Errors ◽

Pavement Condition ◽

Material Parameters ◽

The Road ◽

Nondestructive Tests ◽

Road Pavement ◽

Falling Weight ◽

Pavement Reinforcement ◽

The Impact

Nondestructive tests of road pavements are among the most widely used methods of pavement condition diagnostics. Deflections of road pavement under a known load are most commonly measured in such tests, e.g., with the use of falling weight deflectometer (FWD). Measured values allow to determine the material parameters of the road structure, corresponding to the obtained results, by means of backcalculations. Among the factors that impact on the quality of results is the accuracy of deflection measurement. Deflection basins with small differences of displacement values may correspond to significantly different combinations of material parameters. Taking advantage of them for mechanistic calculations of road pavement may eventually lead to incorrect estimation of the remaining fatigue life and then inadequate selection of pavement reinforcement. This study investigated the impact of measurement errors on the change of the obtained values of stiffness moduli of flexible road pavement layers. Additionally, the influence of obtained material parameters on the values of key pavement strain, and consequently on its design fatigue life was presented.

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