Application of Ash-Polymer Mixtures in the Construction of Forest Roads
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2020, Vol 11, Issue 3
Abstract
The construction of forest roads is one of the priority issues of the forest industry. The underdeveloped forest road network does not allow the use of forest resources, which are situated too far from the civil roads because of lower profitability. Expanding the forest road infrastructure will allow to increase mobility as well as profitability of resource extraction. Forest roads are expensive. This is due to the high cost of road construction materials and long distance of their delivery. One of the latest ways of cost reduction of road construction materials is the use of industrial wastes. A study was carried out in order to obtain a pavement layer with high physical and mechanical properties and a relatively low cost from industrial wastes for the problem solving. Household high-pressure polyethylene is used as a binder in the mixture, and ash from incineration of sewage sludge is used as filler. A coagulation-condensation structure is formed due to the use of plastic in the mixture; herewith the material is characterized by high strength and frost resistance. The study has a scientific novelty as the issues of polyethylene adhesion with various fillers are poorly known. Recycled polymers (crushed polyethylene, fraction 1.5–2.5 mm) were used as a structure-forming component. Ash from the sewage sludge incineration obtained at the SUE «Vodokanal of St. Petersburg» was used as the filler material. According to the test results, a material with the following parameters was obtained: the compression resistance of 170.63–552.08 MPa, the elastic modulus of 322–1022 MPa, water absorption within 1 %; that allows using the material in the forest road construction. This material can be used as an application for reinforcing the pavement layer in the forest road construction on weak soils. The use of the obtained material in forest road construction will expand the forest road infrastructure by cost reduction. The studies of the Department of Industrial Transport of the Saint-Petersburg State Forest Technical University show that the high physical and mechanical parameters will increase the service life of forest roads and hence the time between overhauls. These aspects have a positive effect on the profitability of the forest road construction.
Authors and Affiliations
А. N. Minaev, O. V. Zubova, D. M. Kulik, V. V. Siletskiy, V. I. Lugovov
Keywords
Related Articles
- EP ID EP683380
- DOI 10.37482/0536-1036-2020-3-106-116
- Views 242
- Downloads 0
Effective Positioning in Cutting Area of a Harvester Using Computer Modelling
An improvement of methods and models for preliminary estimation of the performance of harvesters in timber production intends to support better justification of the use of certain harvester types and technologies for spe...
Studying the Rheological Properties of a Polylactide Melt Mixed with Wood Filler
Composite materials based on wood filler are promising materials that are actively conquering the market. This is due to the advantages of using these materials in various fields: weather resistance and environmental com...
Improving Chemical Maintenance Techniques in Forest Plantations
This article covers concerns about the elimination of low-value deciduous trees by chemical treatment in favour of conifers. Various methods for removing undesirable vegetation are discussed with an indication of their a...
Morphological Variability of the Assimilation Apparatus of Pinus sylvestris L. within the Teberda National Biosphere Reserve
Pine forests are widespread in the Karachay-Cherkess Republic, in particular, in the Teberdinsky National Biosphere Reserve, mainly in its northern part. The variability 0 of pine morphological parameters is associated w...
Oak Stands Affected by Polyporaceae and Their Viability in the South-West of the Central Russian Upland
One of the reasons for the weakened state of English oak Quercus robur L. in coppice oak forests of the southern forest-steppe of European Russia is trunk and butt rots, the causative agents of which are the representati...