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Road Construction Materials Used By Top Contractors for Cost Saving
Road construction involves installing soil stabilizers, asphalt, concrete, and other materials on a defined path to create a smoothed or paved surface where vehicles can move on between two destinations.
This complex process involves paving, rehabilitation, and reclamation of degraded pavements to create a motorable roadway that is safe for public use. Planning of road construction can take months or years of planning before the actual work can begin depending upon the size and nature of the road.
A wide variety of materials are used in the process of constructing roads. These are soils, either natural or processed, aggregates (fine aggregates or coarse aggregates obtained from rocks), different binders such as lime, bituminous materials, and cement, and other materials used as admixtures for improved performance of roads under heavy loads and traffic.
Road Construction Materials For Cost-Saving
With the evolution of the construction industry and growing traffic on roads, road construction materials have also evolved, and more sustainable and cost-effective materials are now being used in the construction of roads.
Plastic waste nowadays is used in the construction of roads. Plastic wastes can be used as a stabilizing agent in soil. Plastic wastes, when used in road construction, improve stripping resistance.
Demolition wastes are obtained from the destruction and removal operations of buildings. Large quantities of broken bricks, plaster, stucco, concrete, and natural building stones are available in large metropolitan areas where slum or building demolition programs take place.
Additional materials such as brick and stone can be made from abandoned or old broken roads, usually found in rural areas. These materials, depending on their quality, make an excellent base and subbase aggregate.
Structural waste materials from demolition and abandoned roads or buildings can be used as an aggregate material and as a very cost-effective material in road construction.
Recycled Asphalt Shingles
Recycled shingles are most often used in many construction projects, such as for paving projects, including public roads, driveways, and parking lots. Asphalt shingles are categorized into two groups first is fiberglass and the second one is organic shingles.
Both these types of recycled asphalt shingles are composed of varying rates of mineral fibers, mineral fillers, and hard rock granules in addition to asphalt cement, with an average percentage of 30% of the total mass.
Crumb Rubber or”Scrap tires”
Crumbed rubber is used in many road construction processes. Crumb rubber, when used in road construction, has numerous advantages, such as it provides improved resistance on roads to avoid skidding.
Crumb rubber also provides asphalt mixtures with high shear strength, which enables the road to bear the traffic load and prevents the occurrence of rutting in the underneath pavement layers of the road.
The use of sustainable materials is significant from both environmental and economic perspectives. An increase in profit margins is possible through using new, non-standard materials and technologies in building and maintaining roads.
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