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World Insights: Chinese company builds “green expressway” in Cambodia

Abstract : With shuffling sounds, a batch of freshly produced stone was dumped to the ground. Before flying dust made its way out of the window, a giant "vacuum cleaner" over the plant sucked the dust into a sewage sedimentation tank.

by Mao Pengfei, Nguon Sovan

KAMPONG SPEU, Cambodia, April 6 (Xinhua) — With shuffling sounds, a
batch of freshly produced stone was dumped to the ground. Before flying
dust made its way out of the window, a giant “vacuum cleaner” over the
plant sucked the dust into a sewage sedimentation tank.

This is a process in Shenghua Quarry in south Cambodia’s Kampong Speu
Province — the first quarry equipped with dust collectors to produce
crushed stone for the Phnom Penh-Sihanoukville Expressway (PPSHV

Apart from processing stone, China Road and Bridge Corporation, the
contractor of the project, has deployed multiple technologies and
equipment for the eco-friendly construction of the project.


At the quarry, the production line is enclosed, with dust collectors
installed over the plant to suck out the dust and discharge it to the
sewage sedimentation tank. The precipitated sludge can be used for the
reclamation of mines.

Meanwhile, the enclosed structure of the plant significantly reduces noise.

Zeng Feng, deputy chief engineer of the expressway project, said the
quarry is required to install dust collection equipment, which can
produce cleaner aggregates, ensure the quality of mixtures for asphalt
pavements, greatly reduce dust emission and protect the local

The Phnom Penh-Sihanoukville Expressway is built on a
build-operate-transfer basis. After completion, it will be the
first-ever expressway of Cambodia, linking the capital Phnom Penh to the
largest seaport province of Preah Sihanouk. The trip will just take two
hours, compared with five hours at present.

Environmentally-friendly technologies are applied to build a “green
expressway” and pursue sustainable development, Hu Zhaoguang, general
manager of the expressway project, said Saturday.

He added that the expressway will not only boost the Cambodian
economy, but also lead the “green trend” in the infrastructure industry
to protect Cambodia’s environment.


The Kirirom National Park is located 60 km southwest of Shenghua
Quarry, with green forests flourishing on both sides of a national road,
where the PPSHV Expressway Project Section 3 is being implemented.

Liu Jianjun, manager of Section 3, told Xinhua on Saturday that in
order to protect vegetation and wildlife habitats, the construction team
has carried out field investigations to avoid the potential
environmental destruction of protected areas.

The company is also making efforts to restore the environment and minimize the impacts of the construction, Liu added.

Generally, the expressway is enclosed with a wire mesh fence. If
animals run into the wire mesh, however, they will easily get injured.
As the PPSHV Expressway stretches across the natural reserve, home to
many wild animals, the constructors added shields along the wire mesh
fence of 21 km as a kind of protection, said Lin Ronggang, the designer

“In addition, a great investment was made to build special
passageways for animals to ensure their free migration. After
completion, small animals like squirrels and big ones like Asian
elephants all can pass through,” Lin said.

Furthermore, the project has also included building noise barriers
and noise reduction forests for all the 44 noise-sensitive areas along
the expressway such as temples and schools.


With its experience in environmental protection on Chinese
construction sites, the company is setting a new benchmark in the
Cambodian construction industry.

Li Gangliang, deputy head of the project’s Ecological Protection
Leading Group, said the Chinese and Cambodian employees have adopted a
set of environmental protection measures, involving the treatment of
waste water, dust control and noise prevention.

Kong Sareach, chairman of a commission under the Cambodian Senate,
spoke highly of the PPSHV Expressway Project in terms of its respect for
local culture and customs as well as its efforts regarding
environmental protection, stressing that many of its practices should be
promoted throughout the Cambodian infrastructure industry.

Hu, the leader of the project, hopes to make this expressway project
an example of green development, as well as an embodiment of the harmony
between man and nature. Enditem

About Xinhua Silk Road

Xinhua Silk Road ( is the Belt and Road Initiative (BRI) portal.China’s silk road economic belt and the 21st century maritime silk road website,includes BRI Policy,BRI Trade,BRI Investment,Belt and Road weekly,Know Belt and Road,and the integrated information services for the Belt and Road Initiative (BRI).

Source: World Insights: Chinese company builds “green expressway” in Cambodia

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