Proposals from the concrete industry for carbon-free construction

The concrete sector is in favor of RE2020 and is working on an ambitious strategy to reduce emissions in line with the National Low Carbon Strategy (SNBC). Decarbonization of this sector is an ongoing process as carbon emissions from cement declined 39% between 1990 and 2018 and orbital sets are expected to decline another 24% by 2030. ..

Significant investment is underway and the entire profession is working on tomorrow’s innovation. This will allow us to go even further and reach -80% in 2050. It is important to emphasize that today’s or tomorrow’s efforts are conditional on a certain number. Of parameters to help the industry stay competitive.

Therefore, the sector hopes that its decarbonization trajectory will be recognized and that the construction materials it provides will not be discriminated against.

Within the framework of the presidential election, the proposals made by the Concrete Department revolve around five axes: housing, city planning, circular economy, networks and water management.

Accommodation: cBuild more, better, and at a controlled cost:

French people already spend 30% of their budget on housing, so let’s build more. The main challenge for the next few years will also be to continue construction to meet the demand for quality homes at controlled costs that are still available to first-time buyers. The specific sector is calling on public agencies to take strong incentives for housing in excess of € 650 million planned to fund the recycling of urban and industrial wastelands. site.

Better Buildings: Development of new tools that can begin to reflect on the safety of people and property in all construction sectors, simulate fire protection in the best possible way and, as a result, improve the safety of residents. Aimed at.

Building at managed cost: RE2020 should reflect the useful life of the building. Criteria for integration into the circular economy, as well as criteria for the durability and longevity of structures, must be taken into account.

Construction Summit: Brings together an actual construction summit that allows all stakeholders to be associated with the revival of construction beyond the sole areas of social housing and remodeling. Continued investment in social housing and recovery of investment in other market segments must go through appropriate and long-term tax policies that are incentives for new construction. This is outside the scope of IFI, especially as private rental investment, as is done abroad, assumes that its purpose is more related to productive assets than to personal fulfillment. ..

City planning: Eco-design of urban structure

Envisioning the city of the future means freeing up space while limiting urban sprawl, addressing climate hazards, growing urban demographics, and reducing the need to return to the city’s nature. To do. Concrete materials with controlled carbon effects provide many solutions to address these issues. The sector proposes to support concrete solutions that meet all other requirements for elastic and sustainable urban design, while preventing the formation of the heat island, thanks to:

  • A solution for storing water on surfaces (basins, weirs, etc.) or roofs. This will allow the outdoor waters to be reintroduced into the city.
  • Drainage solutions and porous structures that prevent rainwater runoff by dehydrating the surface of the city.
  • A green solution that enables surface regeneration (roads, sidewalks, façade, city roofs).

Circular economy

  • Leverage orders for territorial development

Better construction involves public procurement, which must be exemplary in the content of the Special Technical Provisions (CCTP), through an innovative approach and by integrating equal treatment between materials or solutions. Specific sectors provide:

Try the public offering of the Circular Economy Clause bid. This includes standards for the use of local materials, as well as standards for the recyclability of materials, especially by extending the concept of integration clauses to local work.

  • Expansion of territory through new forms of contract with cities

The concrete industry offers a new form of contract with cities to develop local value chains. Recall that this sector contributes to building a regional value chain, especially from an industrial ecology perspective, due to its excellent territorial network and short transport distances between mining activities, processing and implementation. To do.

  • Sustainable supply: territorial fixation as close to the market as possible

Quarry and processing facilities are mainly located in rural areas. Production units and distribution platforms are located in the area around the city as close as possible to the construction site. This proximity limits transport and therefore associated CO2 emissions. The specific sector suggests that: Introduce indicators into the standards of public procurement that promote the regionality of products and jobs.

  • Functional economy: Building work adapted to the daily life of a city that exerts strategic functions

The circular economy goes through a functional economy. The concrete sector offers a new vision of construction with structures that can be adjusted over time and the materials are recyclable. Concrete can be recycled by the company used at the time of dismantling. Ownership of the material may remain with the prime contractor or its successors.

  • Promote the use of BIM by creating ID cards for buildings, civil engineering and infrastructure during construction
  • Sustainably prioritize accessibility between extraction and production sites

To do this, experts believe it is necessary: ​​by defining directions and objectives, ensuring the implementation of national strategies for the sustainable management of aggregates in planning documents, local It makes it possible to ensure sustainable access to resources by maintaining the fabric; the period of quarrying permits is optimized by adapting to the predictable exploitation period of reserves.

network

The refurbishment and development of new transportation axes (roads, highways, railroads) essential to ensure territorial safety, economics, commerce and tourism development, respects the environment, landscapes, biodiversity, and natural or man-made obstacles. It is supposed to cross objects. With the advent of new softform mobility and key technological developments underway, the concrete industry is revolutionizing and providing more efficient construction solutions than ever before.

  • Rethink urban transportation plans

Agglomeration is developing a network to facilitate the development of soft transportation. It is a pedestrian road, a bicycle road, a public transportation system on its own site, and we would like to devote a space that can coexist with automobile traffic to them.

-For added security, the urban space needs to be clearly configured, dedicated lanes distinct, and the different travel modes balanced to make the urban space easier to read. Concrete, colors and textures make urban spaces more readable. You can distinguish between lanes reserved for different traffic modes.

-Beyond the realization of epic works that model landscapes and enable essential connections to bring territories closer, we need to meet the expectations of planners who want to develop new mobility.

  • Integrate underground network

Faced with the saturation of mobility spaces and the vulnerability of cities in the face of climate change, new construction methods are needed in basements to make people’s mobility more fluid and to protect their heritage. Subsoil is a complementary resource for urban space. Indeed, it provides a great deal of space to meet the urban challenges of densification, compactness, strength, short circuits, and urban quality. More effective use of subsoil will partially address the challenge of reducing land acquisition.

  • Creating a multi-network gallery

Multi-network galleries can be highly relevant, especially in building urban development projects that require the redevelopment of underground networks and participating in the strengthening of underground space in the overall development of sustainable cities. Proven. Specific sectors are proposing to create new networks such as pneumatic waste collection networks, logistics networks, etc. to secure the “last one mile” …

  • Development of new alternative mobility

New potential areas are emerging, such as urban cable cars and post-TGV (hyperloop train) transportation projects, to ease congestion on land transportation routes, but river transportation has been relocated and its equipment refurbished. Must be done. There is an urgent need to renovate the infrastructure within the framework of modernization of the connecting axis. The concrete industry needs:

-To renovate the bridge within 10 years, as recommended by the Senate, create a fund to support local governments at € 130 million annually.

-Allocate more resources to local governments for the construction of cycling infrastructure, especially through local investment support grants (DSIL) and bicycle funds.

-If you can reduce operating costs with increasing attendance, you need to consider the relevance of your investment in these infrastructures.

Water management

As urbanization progresses, the infiltration of nature decreases and the outflow increases. These phenomena are exacerbated by rain and more often cause floods and pollution of the host environment due to leaching. Finally, the protection of springs and groundwater, and the treatment of wastewater are major issues for future generations. This sector provides the implementation of sustainable solutions over time, which contributes to the resilience of our space.

-To protect urbanized areas from flood risk: embankments, high performance concrete lip wraps, drainage concrete, road reservoir pavement.

-Supply and reprocess water for citizens: water supply, treatment plants, storage basins, pipelines, and treatment plants.

The first outcome of this reflection, carried out by the concrete sector from which these proposals were based, was recently communicated to candidates and their teams within the framework of a collaborative process.