CONTACT US

Our Address

Science Avenue, High-tech Zone, Zhengzhou City, Henan Province, China

  • CHOICE OF BITUMINOUS OTTA SEAL SURFACING AN

    2018-2-27  new practice. Nepal began using Otta Seal in 2002. Currently, the total length of roads in Nepal that have been sealed using Otta Seal is estimated to be above 1000 km. Some examples of locations where Otto seal is being used in current road construction include Surkhet-Jumla, Surkhet-Dailekh and Basantapur-Tehrathum road in Nepal.

  • Otta Seal Surfacing of Aggregate Roads

    文件大小: 537KB
  • (PDF) Otta Seal Construction for Asphalt Pavement

    Otta seal design and construction details are documented and discussed, and test sections using various aggregates were compared for performance. ... The upgrade from gravel road to Otta seal, or ...

  • Evaluation of Otta Seal Surfacing for Low-Volume Roads

    2018-7-5  Otta seal surface appearance: (a) one day and (b) six months after construction To evaluate Otta seal performance, the international roughness index (IRI) was measured using Roadroid, a mobile device-based app. IRI measurements were taken on the existing HMA pavement surface before construction and at different periods after Otta seal construction.

  • Design and construction procedure of otta seal

    OTTA SEAL CHOICES 8. LIMITATIONS Lack of information regarding the Otta Seal, properties, design, construction and performance Reluctance to adopt new technology Extra contractual Obligation 9. Otta seal Guiding Document 10. RECOMMENDED TYPE OF OTTA SEAL IN RELATION TO TRAFFIC 11. PREFERRED AGGREGATE GRADING 12.

  • The Otta Seal Surfacing - SSATP

    2019-11-26  the Otta seal surfacing as an economic and practical alternative to the more traditional bituminous surface treatments. The publication outlines the origin, properties, design and construction of the Otta seal and discusses its implementation impacts and the

  • Road Resurfacing with Otta Seal - K31 Road

    2020-6-17  This LST derives its name from the Otta Valley in Norway where it was first developed in 1963 (Thurmann-Moe and Ruistuen 1983). An Otta seal is an asphalt surface treatment constructed by placing a graded aggregate on an application of a relatively soft bituminous binding agent.. One benefit of using an Otta seal is that a relatively-inferior, locally-available aggregate (such as screened ...

  • Development of Design Standards for Low-Volume Roads

    2016-8-2  Mekaneselam road. This report deals with the construction of the section at Combel. 1.1 Project objectives The demonstration project had three objectives: 1. Demonstrate an Otta seal using aggregate that is within the prescribed grading and strength requirements 2.

  • Research 368 - Long-term dust suppression using the

    2009-12-3  The Otta seal technique for dust minimisation is more environmentally friendly and sustainable than waste oil. The binder applicator is the only additional machinery required, compared to normal gravel road maintenance equipment, for Otta seal construction.

  • CONSTRUCTION OF LOW VOLUME SEALED ROADS

    2015-5-12  who are involved in low-volume road works using Labour Based Methods (LBM). Established Contractors, Professional Engineers, Technologists, and Technicians, Programme Managers, and Planners may also use this book as a reference for some of their design work and Construction Supervision services.

  • Otta Seal Construction for Asphalt Pavement

    Otta seal resurfacing methods have been widely demonstrated for unpaved roads and road rehabilitation in a few states in the U.S. as well as in Scandinavia and Africa. Application of Otta seal over a deteriorated hot mix asphalt (HMA) surface has been considered as the feasible concept that has not been applied for real construction.

  • Road Resurfacing with Otta Seal - K31 Road

    2020-6-17  This LST derives its name from the Otta Valley in Norway where it was first developed in 1963 (Thurmann-Moe and Ruistuen 1983). An Otta seal is an asphalt surface treatment constructed by placing a graded aggregate on an application of a relatively soft bituminous binding agent.. One benefit of using an Otta seal is that a relatively-inferior, locally-available aggregate (such as screened ...

  • Development of Design Standards for Low-Volume Roads

    2016-8-2  Mekaneselam road. This report deals with the construction of the section at Combel. 1.1 Project objectives The demonstration project had three objectives: 1. Demonstrate an Otta seal using aggregate that is within the prescribed grading and strength requirements 2.

  • Otta Seals: The underutilised tool in pavement ...

    2020-6-12  Narrandera Shire Council completed about 65km of otta seal in last four years, 20km of new otta seal in 2017/2018 alone. Importantly, they have customised the process of otta seals to suit the Australian environment, including amending gradation of stone, percentage of cutter and rolling regime and signage after application.

  • INNOVATION IN SUSTAINABLE ROADS SERVICES IN

    2017-7-7  Otta Seal in Narrandera Region since 2013. Until 2016 June about 6 km of Otta Seal has been laid with very satisfactory result. In 2016-2018 Narrandera Shire Council is to widen about 17 km of roads with Otta Seal and about 10 km of new seal extension using Otta Seal. Otta Seal

  • Manual for the Labour based construction of

    Otta Seal Documents Manual for the Labour based construction of bituminious Manual for the Labour based construction of bituminious २०७३ भाद्र ...

  • 5 YEARS EXPERIENCE IN USING OTTA SEAL AND SOFT

    2018-1-26  CONCLUSIONS The construction of soft asphalt instead of construction of typical asphalt concrete pavement results in saving 5.36 mln. EUR/year, while double Otta Seal saves 7.77 mln. EUR/year. The pavement condition of rehabilitated low-volume gravel roads after five years exploitation confirmed the suitability of soft asphalt and double Otta Seal technologies for the improvement of

  • Performance of Soft Asphalt and Double Otta Seal

    The highest value (255.63 MPa) was on road number 4516 (1); the lowest (132.58 MPa) was on road number 2735. However, in three roads sections, that were covered with double Otta Seal (road number 1716, road number 3208, and road number 2642), some individual values were less than 120 MPa. The lowest value was 77.94 MPa on road number 1716.

  • Seal Thin Bituminous Surfacing Option for

    2012-4-24  material and construction specifications are not as strict. Local aggregates that would not meet the requirements for high quality paving aggregate are often used in Otta seals. Traffic: Very Low to High (AADT < 2000) for a double Otta seal. Because Otta seals can provide a high-quality road surfacing, there is a tendency for higher road usage

  • CONSTRUCTION OF LOW VOLUME SEALED ROADS

    2015-5-12  who are involved in low-volume road works using Labour Based Methods (LBM). Established Contractors, Professional Engineers, Technologists, and Technicians, Programme Managers, and Planners may also use this book as a reference for some of their design work and Construction Supervision services.

  • INNOVATION IN SUSTAINABLE ROADS SERVICES IN

    2017-7-7  Otta Seal in Narrandera Region since 2013. Until 2016 June about 6 km of Otta Seal has been laid with very satisfactory result. In 2016-2018 Narrandera Shire Council is to widen about 17 km of roads with Otta Seal and about 10 km of new seal extension using Otta Seal. Otta Seal

  • Economics of upgrading gravel roads to Otta seal

    2019-6-24  ABSTRACTMaintenance of low volume roads especially gravel roads is costly, and millions of funding annually are spent for aggregate replacement alone. Otta seal, compared to other bituminous surface treatments (BSTs) for low volume roads that require high-quality materials and specialized expertise, can be constructed using cheaper local aggregates and accessible equipment.

  • Development of Design Standards for Low-Volume Roads

    2016-8-2  Mekaneselam road. This report deals with the construction of the section at Combel. 1.1 Project objectives The demonstration project had three objectives: 1. Demonstrate an Otta seal using aggregate that is within the prescribed grading and strength requirements 2.

  • (PDF) The Otta Seal Surfacing: A practical and

    2020-5-19  Otta seal can be described as "a 16 to 32 mm thick bituminous surfacing constituted of an admixture of graded aggregates, ranging from natural gravel to crushed rock, in combination with ...

  • Manual for the Labour based construction of

    Otta Seal Documents Manual for the Labour based construction of bituminious Manual for the Labour based construction of bituminious २०७३ भाद्र ...

  • Design, Construction, and Preliminary Investigations

    2019-12-16  The total construction cost for Otta seal application in Cherokee County was almost US$2.5 per m 2 for 6.4 km (4 mi) of road. The initial construction costs of Otta seal and chip seal were obtained from Minnesota and Iowa bid records that are publicly available .

  • The Design, Construction Seals - vegvesen.no

    2014-3-5  of a good result for Otta Seals. Ranges between a very appealing and a poor appearance depending on quality of construction workmanship. Skid resistance in wet weather Poorer than a Chip Seal that is well designed and constructed using large chipping. However better than Slurry Seals and Asphalt Concrete. Ranges between the extremes of excellent

  • Otta Seal Surfacing Workshop Iowa Local Technical ...

    Presentation: Otta Seal Design, Construction, and Performance in Iowa (Halil Ceylan) 11:30 a.m. Lunch – Served at the Workshop: 12:30 p.m. Presentation: Quality Assurance during Construction of Otta Seal (Charles Overby) 1:30 p.m. Break: 1:45 p.m. Presentation: Otta Seal Experience in Minnesota (Charles Jahren) 2:30 p.m.

  • Suitability of Natural Gravels in Ghana for Otta Seal ...

    2016-5-18  Suitability of Natural Gravels in Ghana for Otta Seal Construction Y. A. Tuffour1, A. Braimah2 1 Civil Engineering Department, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana 2Department of Feeder Roads, Kumasi, Ghana Abstract: - Otta seals are bituminous chip seals constructed to upgrade low-volume gravel roads to surfaced

  • Seal Thin Bituminous Surfacing Option for

    2012-4-24  material and construction specifications are not as strict. Local aggregates that would not meet the requirements for high quality paving aggregate are often used in Otta seals. Traffic: Very Low to High (AADT < 2000) for a double Otta seal. Because Otta seals can provide a high-quality road surfacing, there is a tendency for higher road usage