All PIARC Publications

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  • Review of Practices Using Marginal and Secondary Materials in Rural and Industrial Areas

    The use of existing materials in road embankments is an essential issue within the Sustainable Development policies, which have been promoted worldwide for many years. In the World Road Association (PIARC) this subject has been investigated by different Technical Committees over the last 20 years. [...]

    • Date : 2019
    • Pages : 90
    • PIARC Ref. : 2019R43EN
    • ISBN : 978-2-84060-595-9
  • Earthworks Manual

    The technical specificity of Earthworks corresponds to the management of many parameters and constraints that have an influence on the progress of the design and construction operations. In particular, the construction of earthworks is confronted with geotechnical and climatic hazards. General considerations [...]

    • Date : 2019
    • Pages : 67
    • PIARC Ref. : 2019R10EN
    • ISBN : 978-2-84060-520-1
  • Practices on involvement of local community in rural roads

    A rural road network is a basic community asset which has tremendous bearing on socio-economic development of rural communities, therefore; involvement of communities is critical in projects or works aimed at providing rural accessibility. The report discusses the roles that a community can play in [...]

    • Date : 2013
    • Pages : 77
    • PIARC Ref. : 2013R11EN
    • ISBN : 978-2-84060-329-0
  • Best practices for the sustainable maintenance of rural roads in developing countries

    Regular maintenance of roads is critical to the economic vitality of a country. In particular, a focus on rural road maintenance is needed when planning and operating a large transport network, as they are often deemed less important than paved roads and highways. When rural roads are neglected, it [...]

    • Date : 2013
    • Pages : 45
    • PIARC Ref. : 2013R01EN
    • ISBN : 978-284060-309-2
  • Innovative approaches towards the use of locally available natural marginal materials

    The utilization of materials locally available on the site of a road project is a major concern in the context of sustainable development and perfectly meets the socioeconomic and environmental criteria involved in it. The report is based on the answers received from twenty-two countries. Five different [...]

    • Date : 2013
    • Pages : 176
    • PIARC Ref. : 2012R37EN
    • ISBN : 978-2-84060-307-8
  • Anticipating the impact of climate change on road earthworks

    Climate change and its consequences are one of the main preoccupations of the beginning of the 21 st century. The first part of the report presents, as an example, regional scenarios of the climate evolution for Quebec and Switzerland. The second part focuses on water: lack or excess of water and its [...]

    • Date : 2008
    • Pages : 69
    • PIARC Ref. : 2008R12EN
    • ISBN : 2-84060-212-1
  • Indicators representative of the condition of geotechnical structures for road asset management

    The management of geotechnical assets of road infrastructure is a subject that is rarely investigated. The variability and the difficulty to predict long-term performances pose a challenge for planning maintenance. The report provides an overview of the state of practice. After a description of the [...]

    • Date : 2008
    • Pages : 173
    • PIARC Ref. : 2008R01EN
    • ISBN : 2-84060-201-6
  • Promoting optimal use of local materials

    This document aims to: • identify the progress made over the last decade with respect to soil and/or rock treatments in the area of road earthworks, and more specifically since the publication of PIARC's 1997 report: "Equipment and Methods Specific to Soil Treatment Work"; • look at developments [...]

    • Date : 2007
    • Pages : 83
    • PIARC Ref. : 2007R09EN
    • ISBN : 2-84060-196-6
  • Contribution to Risk Management of Existing Slopes

    C12 decided to extend those studies and adopted the topic risk management of existing slopes during the period 1995-1999 to focus on the utilization of monitoring techniques and database applications. The report summarizes the risk management on existing slopes in technical aspects through the collected [...]

    • Date : 2000
    • Pages : 100
    • PIARC Ref. : 12.11.BEN
    • ISBN : 2-84060-129-X
  • Equipment and Methods Specific to Soil Treatment Works

    To avoid the report on "Field treatment of soils with lime or hydraulic or pozzolanic binders" presented at the XIXth World Road Congress at Marrakech in 1991 (PIARC ref. 19.12.B), being too long, the Technical Committee on Earthworks, Drainage, Subgrade (C12) decided to limit the discussion of equipment [...]

    • Pages : 64
    • PIARC Ref. : 12.05.BEN
    • ISBN : 2-84060-051-X
  • In Situ Assessment of Subgrade Materials

    It is important to be able to forecast the performance of the subgrade, especially its acceptable limits of deformation derived for both the construction stage and during the working life of the pavement. Ten types of in situ test apparatus are described briefly and comparisons made between them, setting [...]

    • Date : 1995
    • Pages : 120
    • PIARC Ref. : 12.01.BEN
    • ISBN : 2-84060-030-7
  • International Symposium on Subdrainage in Roadway Pavements and Subgrades

    Out of print As is common knowledge in the transportation community, proper functioning of roadways is largely dependent on adequate drainage, both at the surface and in the subsurface. The accumulation of excessive water under pavements typically results in a reduced bearing capacity, leading to [...]

    • Date : 2000
    • PIARC Ref. : 12.08.BEN
  • Landslides - Techniques of Evaluating Hazard

    This report discusses current techniques used to evaluate landslide hazard in three stages. Firstly, the landslide hazard of an area is evaluated by collecting existing data, field reconnaissance, etc. At several specified sites along a route, more detailed investigations are then conducted, such [...]

    • Date : 1997
    • Pages : 120
    • PIARC Ref. : 12.04.BEN
    • ISBN : 2-84060-044-7
  • Leightweight Filling Materials

    This document presents various lightweight filling materials for different applications in road construction. Details are given regarding material properties, design considerations, specifications related to the construction, pavement structure, environmental considerations if any, availability and [...]

    • Date : 1997
    • Pages : 288
    • PIARC Ref. : 12.02.BEN
    • ISBN : 2-84060-045-5
  • Limits of use of natural soils, specifications and controls in earthworks

    During 2000-2003 C12 activity, it was decided to be interested in the limits of use of the soils in the earthworks through the various Member States of the committee and simultaneously to analyse the control methods developed to guarantee the good completion of the work. C12 has considered interesting [...]

    • Date : 2003
    • Pages : 172
    • PIARC Ref. : 12.12.BEN
    • ISBN : 2-84060-141-9
  • Marginal Materials - State of the art

    Three PIARC Technical Committees have devoted part of their preliminary work to the XVIIIth Congress (Brussels, 1987) to the use of marginal materials in road technology: Technical Committee on Testing of Road Materials, Technical Committee on Flexible Roads, Technical Committee on Earthworks, Drainage, [...]

    • Date : 1989
    • Pages : 112
    • PIARC Ref. : 02.04.BEN
  • Practical Guidelines for the Design and Construction of Road Embankments

    The practical guidelines contained in this report have been developed from the results of a survey on the state of the art in the design and construction of road embankments. In March 1993 a questionnaire was circulated to collect information about the "rules of the art in the design and construction [...]

    • Date : 1999
    • Pages : 36
    • PIARC Ref. : 12.03.BEN
    • ISBN : 2-84060-057-9
  • Road in Desert Areas

    Drafted by the PIARC Technical Committee on Roads in Developing Regions, this report provides information on the construction and maintenance of roads in desert areas.

    • Date : 1991
    • Pages : 88
    • PIARC Ref. : 03.03.BEN
  • Slope Risk Guidance for Roads

    Slopes are, in general, associated with a greater frequency of failure than other geotechnical assets and a greater threat economically and socially. This report makes a synthesis of risk analysis methods and of vulnerability issues. It presents, in a series of appendices, mitigation measures with their [...]

    • Date : 2004
    • Pages : 112
    • PIARC Ref. : 12.13.BEN
    • ISBN : 2-84060-166-4
  • Testing Aggreates

    Particle-size Analysis by Sieving, Los Angeles Test, Sand Equivalent, Accelerated Polishing Test, Determination of the Amount of Fines Passing 0.075 mm Mesh, Gravimetric Measurement: Absolute Density, Real Density, Bulk Density (with and without compacting), Aggregate Shape Measurement: [...]

    • Date : 1987
    • Pages : 66
    • PIARC Ref. : 02.02.BEN
  • Testing Geotextiles

    • Date : 1987
    • Pages : 30
    • PIARC Ref. : 02.01.BEN

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