VIETNAM, January 6 –
A building under construction with environmentally friendly materials in HCM City. – Photo: Sài Gòn Giải Phóng
HCM CITY – The number of construction works constructed with environmentally friendly materials is steadily increasing in HCM City due to the convenience and economy they provide and therefore a competitive advantage for builders.
The Đông Châu production, trade and service company in Bình Thạnh district has barely been affected by the COVID-19 pandemic, unlike most construction companies.
Lê Tiến Linh, its director, explained that many factories urgently need to build housing for their workers during the pandemic.
“We have received many construction contracts from them because we use pre-fabricated construction materials,” he said.
The materials he uses meet needs such as speedy construction and reasonable prices, he added.
A spokesperson for Tecco Real Estate Services Company’s West Saigon office said his company always advises clients to choose new and environmentally friendly bricks, aluminum frames, glass and decorative wall tiles.
“This has created a competitive advantage for the company in the market.”
Nguyễn Thanh Nhân of HCM City University of Technology said that new building materials and assembly building technologies have become popular due to the huge advantages they offer over traditional materials.
By using styrofoam panels, businesses can cut costs by at least 30 percent compared to traditional homes.
With prefabricated houses, the workload is greatly reduced, breakdown costs are saved, construction is quick, and insulation costs and energy consumption are lower.
“In addition, these materials are easy to construct with precise dimensions which reduce material loss during construction,” said Nhân.
The construction of prefabricated houses takes only half the time required for traditional houses and does not depend much on weather and climate factors as the modules are processed and manufactured in the factory, he said.
“Designs using new building materials are more and more diverse and aesthetic, and therefore more and more popular. “
Hoàng Văn Tín of the City Architects Association said that by using prefabricated lightweight building materials such as EPS panels, the foundation could be built on any land, even on water.
“Not to mention that future expansion is fairly straightforward and the cost is not as high as for traditional homes.
The manufactured homes can be easily taken apart and moved to another location, he said.
There are no official statistics on the use of new building materials, but market data shows that they are gradually gaining popularity.
Many members of the association have said that they are increasingly being commissioned to design works using new building materials.
Promote the production and use of environmentally friendly building materials
The use of traditional building materials affects the environment and has consequences such as loss of land and increased emissions of greenhouse gases and other harmful gases.
To make a billion clay bricks, you have to extract 1.5 million cubic meters of clay up to two meters deep, or the equivalent of 75 hectares of farmland.
More than 10 years ago, the government made a decision on the development of environmentally friendly unburned building materials for environmental protection.
There are now over 1,600 factories producing concrete bricks (aggregate cement bricks), autoclaved / non-autoclaved aerated concrete bricks, aerated concrete blocks, hollow core concrete panels (acotec) and panels. autoclaved cellular concrete walls.
The total design capacity of these facilities is approximately 10.2 billion standard blocks per year, or nearly 30% of the total production capacity of building materials.
The country annually saves 7.5 million cubic meters of clay, or 375 ha of land mined to a depth of two meters, reduces coal consumption by 750,000 tonnes and carbon dioxide emissions by 2.85 million tons.
But the figure remains modest compared to the total demand for construction in the country.
According to experts, the biggest obstacle to using “green” building materials is the long-standing habit of using iron and reinforced concrete in building houses.
Many companies producing building materials have limitations in technology, funds and experience that hamper their efforts to make new, environmentally friendly products, they said.
Clear preferential policies are needed to encourage the production of environmentally friendly building materials, they added. – VNS