Road recycling with Ammann in China

A Chinese road builder is planning to add recycling capabilities to its existing asphalt-mixing plants to meet new environmental guidelines. Another benefit of this approach is that the firm will also be able to substantially reduce its costs CSCEC Road & Bridge is a highly successful business in China and utilises Ammann Uniglobe Asphalt-Mixing Plants for its operations. The firm says that the results have been impressive and during one key road expansion project, one of its Uniglobe plants produced 700
February 27, 2019 Read time: 3 mins
Ammann plants have been upgraded with the addition of RAP circuits for a client in China
A Chinese road builder is planning to add recycling capabilities to its existing asphalt-mixing plants to meet new environmental guidelines. Another benefit of this approach is that the firm will also be able to substantially reduce its costs


CSCEC Road & Bridge is a highly successful business in China and utilises 6791 Ammann Uniglobe Asphalt-Mixing Plants for its operations. The firm says that the results have been impressive and during one key road expansion project, one of its Uniglobe plants produced 7000tonnes in a single day. The plant also managed to deliver an average of 5000tonnes/day for the duration of the project. Both numbers are thought to be all-time production highs for China.

However, production output is not the only key factor for asphalt plants in China. New regulations are requiring an increasing use of ARP in asphalt mixes, so as to improve the environmental profile of construction operations.

“In recent years, as more and more public-private partnerships are coming out, we also are paying more attention to recycling technology,” said Zhou Shixin, chairman of a CSCEC Road & Bridge branch in Shijiazhuang City.

The company has owned four productive Ammann Uniglobe plants for some time but these machines are still well within their effective operating life and have many years of productive use ahead of them before requiring replacement. As a result CSCEC Road & Bridge opted to add recycling capabilities to its existing Ammann plants

Ammann has considerable expertise in upgrading its plants. The upgrade for the four plants has included the addition of an RAH drum that heats the RAP before depositing it in the mixer. When using RAP in a mix it is necessary to have the separate RAH drum because the material has to be gently preheated.. This is because the valuable bitumen in the RAP can be damaged when overheated. After preheating, the RAP is deposited in the mixer, where it is then blended with the hot virgin aggregate. The result is a quality mix with a high percentage of recyclables.

Ammann has a great deal of experience in making the plant upgrades, and was able to complete the work in the off-season, so as not to affect the firm’s production during its busy period.

Adding the RAP capability has proven effective for the customer as this method is considerably less expensive than purchasing a new plant with recycling ability. According to Zhou, this has provided a highly cost-effective solution.

The company appreciates the green approach and the costs savings. “We can mill our own material for public-private partnerships and reduce costs by 20-30%,” Zhou said.

Materials

For more information on companies in this article

Related Content

  • Innovative asphalt plant from Benninghoven
    February 28, 2018
    Benninghoven claims that its innovative asphalt transfer system boosts the capabilities of the firm’s ECO mixing plant range. The newly developed alternating chute unit is fitted to the firm’s ECO asphalt plant and is said to be a key development for the sector, with a patent pending. The ECO asphalt plant is offered with output ranging from 100-320tonnes/hour and is said to combine the latest Benninghoven technology and quality. Designed for mobility, the plants fit inside standard shipping containers
    Read More
  • Carry on Movin’ On - Michelin’s mobility event
    October 15, 2018
    Many of the great and the good in the global mobility sector gathered at this year’s Movin’ On event in Montreal. Measured regulation of technologies and safety issues were major themes, reports David Arminas Autonomous vehicles, platooning, smart intersections and safety – these were the talking points over two and half days of the Movin’ On event in Montreal. Everyone in the mobility sector is at the same point, trying to see what mobility will look like in the future. Apparent at the event was just
    Read More
  • Lintec developing novel asphalt plant solutions
    March 16, 2016
    Highly innovative, LINTEC’s new LEP 95 system is a new, patented warm mix asphalt solution. This can be configured to produce both hot and warm mix asphalt depending on demand at the job site. A major reduction in energy consumption and emissions can be achieved by the LINTEC system working in a temperature range of 95°C-100°C. This unitcan be fitted to new or existing plants and is said to produce a smooth and stable foam for an optimum mixing result at low temperatures, while it is reliable and has low ma
    Read More
  • 2020 vision for waste recycling
    February 22, 2013
    Brussels calls for 70% recycling of construction waste by 2020 but *Peter Craven asks if there is a greater target to be achieved in the UK. In the UK, over 90 million tonnes of construction, demolition and ground excavation (CD&E) waste is generated each year from construction, demolition and civil engineering projects. Across Europe this figure is well in excess of 1000 million tonnes and represents a valuable and sustainable asset to the construction sector, as well as protecting natural resources. The r
    Read More

Highlighted Content