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

  • Ammann opens factory in Zhangjiagang, China
    August 22, 2023
    The 50,000m² plant, which includes 5,000m² dedicated to administration, has the capacity to produce 80-100 asphalt-mixing plants annually.
    Read More
  • Beton bets on Amman’s CBS 120 SL Elba Concrete Mixing Plant
    May 15, 2019
    Ammann has assembled a plant that it says is highly competitive on price and performance for its customer Thomas Beton, a concrete supplier near Hamburg. Thomas Beton is among the leading producers of high-quality ready-mix concrete in northern Germany with daily deliveries to infrastructure sites as well as residential, commercial, industrial and agricultural projects. The new Ammann plant – the ninth Ammann-Elba solution for Beton – means that Beton is strengthening its local physical proximity to cu
    Read More
  • Evonik’s VESTENAMER, part of the rubber road revolution
    February 21, 2019
    Rubber modified bitumen is gaining ground, according to speciality chemicals business Evonik The intensified search for better road durability and lower traffic noise - both environmental concerns - has meant an increasing market for rubber-modified bitumen. At the same time, raw material costs for asphalt and specifically for asphalt modification compounds have increased considerably, creating another obstacle to cost-effective road construction. The stakes are high for getting roads more durable
    Read More
  • Marini mobility option
    June 4, 2019
    Marini is offering new versions of its Xpress plant. The first version was the Xpress 2500, but the range is now being widened with the addition of the Xpress 1500, 1500P, 2000 and 2000P models. Andrea Zanoletti is in charge of this range and explained that the plants are designed for maximum mobility. He said, “With only two trailers, you have a complete asphalt plant.” The existing Xpress 2500 model offers an output of up to 250tonnes/hour. However, the new Xpress 1500 and 1500P offer outputs of 150
    Read More

Highlighted Content