2024-06-16 15:34:44
In February 2023, SIA Vianova began the implementation of the analysis undertaking Growth of sustainable bio-asphalt concrete mixtures with renewable biopolymer lignins (Undertaking quantity: 2; Contract quantity: 5.1.1.2.i.0/1/22/A/CFLA/005).
The goal of the undertaking is to develop a sustainable bio-asphalt combination by partially changing the bitumen binder with the renewable biopolymer lignin, which is a pure by-product of wooden processing and has numerous functions. For instance, in veneer manufacturing as an alternative of glue, but it surely can be utilized in asphalt manufacturing. As the costs of asphalt uncooked supplies and environmental safety necessities enhance, there’s a want for an alternate asphalt binder and the reuse of recycled asphalt within the manufacturing of recent mixes, lowering the quantity of non-renewable useful resource use.
Rolands Īzaks, head of Vianova SIA’s Manufacturing Division: “Our purpose is to develop a sustainable asphalt combination, the operational properties of that are equal to conventional options, however with a considerably decrease influence on the atmosphere. The development of the experimental stage was carried out with a purpose to consider the asphalt mixtures developed inside the undertaking in actual, high-load working circumstances. Local weather change is now not the long run, it’s already the current, the accountability of each socially accountable firm is to scale back the influence on the atmosphere by lowering the ecological footprint of the business’s actions and manufactured merchandise, in addition to to advertise the inclusion of round economic system ideas in day by day processes. We’re grateful for the curiosity, participation and help of the concerned events for the profitable implementation of the undertaking. “
R. İzaks additionally states that the undertaking is a part of a broader firm technique, with which it desires not solely to supply modern options, but in addition to be an instance of modifications within the business. “SIA Vianova is proud to be the primary street development firm in Latvia to introduce bio-asphalt know-how within the street infrastructure,” he says.
Jānis Baumanis, undertaking supervisor of the Analysis Administration and Growth Division of the Freeway Competence Heart of VSIA Latvijas Valsts ceļi (LVC), states: “The usage of lignin for partial alternative of bitumen in asphalt mixtures is a brand new strategy to asphalt manufacturing not solely in Latvia, but in addition on this planet, this technique has solely just lately been studied in depth. Realization of the experimental levels in actual circumstances offers a chance to look at the efficiency of the proposed applied sciences each within the brief time period and in the long run, thus exploring not solely theoretical but in addition sensible points, selling extra sustainable street development options. We’re happy that representatives of the business present initiative within the introduction of recent applied sciences, particularly if they’re associated to environmentally and climate-friendly options.”
He additionally explains that with a purpose to embrace new supplies or applied sciences in freeway development specs, sure steps have to be taken. Their objective is to verify the suitability of the proposed applied sciences, to evaluate the restrictions and applicability, in addition to to outline clear technical parameters for inclusion within the specs. Such a scientific strategy is particularly vital for modern strategies or supplies, as on this case, as a result of it isn’t attainable to straight undertake overseas expertise and practices in LVC specs.
So as to give sensible significance to the research, the asphalt mixtures developed inside the undertaking have to be laid in an experimental stage with a purpose to carry out monitoring underneath actual operational circumstances, due to this fact VSIA Latvijas Valsts ceļi (LVC) chosen an acceptable street part.
The primary lane of the left carriageway of the Vidzeme freeway was chosen as a result of:
· the experimental stage have to be on a street with excessive visitors depth;
· with a comparatively good street base, in order that its defects don’t have an effect on the outcomes of the experiment;
· close to SIA Vianova asphalt manufacturing facility;
· development works don’t considerably disrupt visitors.
In the intervening time, the street floor is worn out, there are transverse cracks, longitudinal cracks, crack networks, and ruts are forming. Within the interval of 2023, the typical day by day visitors depth was 41,560 automobiles per day, of which 9% have been freight automobiles.
Within the 450-meter-long part, four-centimeter-thick asphalt was milled after which a brand new floor layer was laid. In complete, three various kinds of asphalt combination with totally different bitumen and lignin content material have been laid.
The builder will present the identical guarantee for this experimental work as for different resurfacing tasks – three years. The undertaking shouldn’t be financed from the state price range.
2024-06-16 15:34:44