by Hu Zujie: Prefabricated public housing construction reduces the construction period [Friday, May 21, 2021 – Macao news] the SAR government requires the public housing in zone a of the new city to adopt the environmental construction mode of prefabricated prefabricated parts and metal formwork construction.
Hu Zujie, President of the society of engineers, said that the use of prefabricated buildings can effectively reduce the waste of materials, shorten the construction period and reduce the number of engineering vehicles going to and from zone a of the new city, It can also improve the working ability and environmental safety of construction workers through training, which plays a positive role in the development of the construction industry in Australia.
Hu Zujie said that at present, the construction industry in the mainland and Macao has been committed to promoting environmentally friendly buildings, and the construction waste management system, which came into force in January by the Environmental Protection Bureau, also encourages the industry to make more use of recycled and reusable materials to reduce waste.
He pointed out: environmentally friendly buildings are not new technologies in Macao.
In the past, prefabricated parts were also used in some large resort buildings.
At present, the proportion of prefabricated parts is increasing, up to 50% or higher.
With regard to the introduction of environmental protection construction mode into public housing in zone a of Xincheng, he said that the transformation of the construction industry with environmental protection is the general trend, so it has a low impact on the industry and will be accepted by the industry.
He pointed out that the prefabricated parts are embedded in the building in the form of “building blocks”, which can effectively improve the construction efficiency and shorten the construction period.
“In the process of construction, the factory has produced prefabricated parts, greatly reducing the construction time and ensuring the completion time.” It is believed that the prefabricated parts can enable the authorities to implement the economic housing policy in area a of the new city as soon as possible, so that people in need of economic housing can go upstairs as soon as possible.
In terms of setting area a for the ready mixed concrete plant to reduce the impact on traffic costs, Hu Zujie frankly said that there is little difference from the traditional construction industry, and the number of buildings should be considered; “The molds, production lines and inherent costs required for production must be included.
If calculated according to one building, the cost will be high, but if a large number of prefabricated parts are built, the cost can be reduced.” In terms of concrete treatment, he said that in construction projects in other places, ready mixed concrete plants will basically be set up to facilitate construction, but Macao is small, so it is lack of conditions to set up.
However, from time to time, large-scale snail cars in Macao spent a lot of time transporting concrete because of narrow roads, traffic congestion or accidents.
This time, the SAR Government concentrated the existing concrete companies in area a of the new city and set up the ready mixed concrete plant in this area, hoping to reduce the impact of concrete vehicles on traffic on the streets and effectively control the construction progress.
Can the development of construction talents in Macao meet the needs of the general direction of environmental protection buildings? Hu Zujie said that at present, the industry has training courses for prefabricated parts construction.
For example, prefabricated parts need to be hoisted by crane, which need to be handled by a large number of technicians.
Prefabricated parts construction can make the working environment safer and workers’ income is higher than that of traditional buildings.
He mentioned that there are fewer and fewer local construction workers and lack of new blood to enter the industry.
The existing local construction workers are relatively old and the work of manual labor is hard.
Therefore, he suggested that these workers can consider switching to operational work and using cranes.
In the long run, it will have a positive impact on the development of Macao’s construction industry.
The demonstration units in area a have specific display quality requirements.
The SAR government disclosed that it will display the demonstration units in area a of the new city to all sectors of society and contractors interested in bidding.
Hu Zujie believes that this is also welcomed by the construction industry.
“Because under the current mode, the materials used, elevators, concrete and even prefabricated parts to be installed in the future can have clear information for your reference.
You can also bid according to your own management ability, operation mode and technical requirements.” He admitted that in the past, there were quality problems in economic housing in Macao, leading to leakage and aging.
However, with the implementation of the new economic housing law, the ownership of economic housing belongs to the SAR government.
Therefore, I believe that the SAR government is willing to take responsibility in case of problems in construction in the future.
At the same time, in response to the problems of wall tile peeling and pipe leakage in the past, the SAR government also regulates the construction materials used and puts forward relevant requirements in terms of supervision.
He expects the supervision process to truly implement the construction procedures and believes that there will be no major problem with the quality of public housing in New Area a.
In addition, in terms of elevator equipment, Hu Zujie pointed out that the public housing in zone a of the new city will provide more than 5000 units in the future, which is a very huge work for elevator management in the future.
If different suppliers are used, it will be difficult to manage in disguise.
Therefore, it is a relatively emerging idea in the industry for the SAR government to conduct preliminary screening and appoint a management company to be responsible…
