Name: Institution: Course: Instructor: Date of Submission: Airport Pavement vs. Highway Pavement Introduction Airport and highway pavements should have sufficient quality and thickness to support airplane and highway loads respectively without failure (Mukabi & Ngaya 152). In addition, their surfaces should be firm and strong throughout the year and in any whether conditions. Both pavements must be stable enough to withstand adverse weather conditions as well as abrasion by traffic. To achieve these requirements, several factors of design and construction should be incorporated to guarantee a quality pavement. In this paper, the highway and airport pavement construction, their advantages, disadvantages, differences and their respective …show more content…
The subbase and base course constructions involves Placement and compaction similar to the one for subgrades. The materials from construction are brought from different locations to the construction site. They constitute course grain materials, providing more strength compared to the subgrade materials. Each construction layer added comes with additional strength hence, the subbase should be stronger than the subgrade and vice versa (kadza et al., …show more content…
Equally important, gradation of aggregate materials is carried out in order to achieve sufficient strength. The materials passing the No. 200 sieve is within acceptable limits to eliminate the effects of frost such as premature pavement failure (Mukabi & Ngaya 153). The strength and durability of the Subbase and base course materials are also enhanced through stabilization. This is achieved by applying either Asphalt or Portland cement to stabilize the subbase and base courses. Excessive compressive strength should be avoided as it may cause reflective pavement
Runway 13/31 is 4,401 feet long and 75 feet wide. The pavement material is Asphalt. The strength of the pavement is 12,500 pounds. Runway 13 has instrument approach aids that consist of RNAV GPS, and VOR. Runway 31 has an instrument approach aid that consist of RNAV GPS. Runway 2/20 is 6,501 feet long and 150 feet wide. The pavement material is made of grooved concrete. The pavement strength is 125,000 pounds. Runway 2 has an instrument approach aid that consist of ILS, LOC-DME, and RNAV. Runway 20 has an instrument approach aid that consist of LOC-BC, VOR/DME, and RNAV. (Columbia Regional Airport, 2009,
Alpha Paving Industries was founded to provide customers with the best in asphalt-related services. From the very beginning, our vision has been to provide customer-focused service and exceptional workmanship through meticulous, professional project management. Over the years, we have built a portfolio of loyal customers that include airports, major retailers, hotels, shopping centers, county and city governments, restaurants, industrial facilities, schools, office complexes, churches, homeowners' associations, apartment complexes and sports centers.
If an aging pavement has become unsightly, check to see if it can be salvaged with an overlay before committing to a total replacement. If the foundation is stable, it might be cost-effective to choose an overlay, which is a course of asphalt applied to existing pavement.
First-time visitors to Lakeway are sometimes surprised to find that many streets and residential driveways are paved with asphalt. Unlike many other towns in the area, Lakeway was not founded in the 19th century. By the time Lakeway was planned, road builders had already begun to embrace asphalt pavement as the preferred choice. Asphalt pavement is economical, durable and attractive, and installation and repairs are quick and easy. At Alpha Paving, we offer a full range of asphalt services to the Lakeway area, including asphalt paving and overlays, sealcoating, crack filling, pothole repairs, street maintenance, asphalt milling and reclamation, pavement markings, speed bumps and parking lot striping.
Asphalt pavement is installed over a compacted foundation that supports the weight of the pavement as well as the traffic load. Anything that weakens the foundation also weakens the pavement. By far, the most common cause of a weakened foundation is water infiltration. Breaks
The surprisingly reasonable installation cost of asphalt pavement as opposed to concrete puts property owners in a position to spread out maintenance cost over a twenty or thirty year time frame.
If the primary problems with the pavement are straight-line cracks and faded color, you can probably extend the life of your pavement through sealcoating. Sealants restore the dark color that asphalt have when it is new and helps prevent fading in the future. Cracks, potholes or other damaged areas will need to be repaired prior to sealcoating. Sealcoating
Paving projects are highly essential because these are techniques that are used to keep roads in excellent condition. Whether you’re a pedestrian or motorist, a roadway that is well paved is much safer and there will be less injuries and damages to your vehicle. A paved street will also make a parking lot look more attractive and organized. There are numerous benefits for hiring a professional for your city street paving. A hired contractor that is experienced and knowledgeable has the ability to give streets a lasting, appealing look. When roads are in good condition, there are fewer worries and less damages to deal with.
Asphalt is the most popular paving material in North America. Asphalt pavement is economical to install and maintain, durable and attractive, and it is also a very safe pavement in any weather. However, if you do not have cracks repaired soon after they appear, you could be putting your pavement at risk, which means that you could end up having to have your asphalt pavement replaced long before you should.
We are in the age of outdoor surface renaissance. Everyday new products, colors, patterns, and surfaces are being created to deliver beautiful results. You can trust Atlas Concrete & Pavement Inc to be up to date on any new market methods and products.
Aggregate is one of the basic constituents of concrete. Its quality is of considerable importance because about three-quarter of the volume of concrete is occupied by aggregates. One of the physical properties of aggregate that influence the property of concrete is the grading of aggregate. The grading of aggregate defines the proportions of particles of different size in the aggregate. The grading of fine (size < 5 mm) and coarse (size > 5 mm) aggregates are generally required to be within the limits specified in BS 882: 1992.
|Design is based on load distributing characteristics of the |Design is based on flexural strength or slab action |
Where sands of medium to low density are found, friction piles can be used to increase the density and therefore the strength.
Road roughness is the deviation of the pavement surface from a true planar surface with characteristic dimension that affect vehicle dynamics, ride quality, dynamic load and drainage , for example longitudinal profile, transverse profile, and cross slope(ASTM E867). By causing vehicle vibrations, roughness has a direct influence on vehicle wear, ride comfort, and safety. The relationship between vehicle operating cost and road roughness are well established through several studies conducted in India and abroad. Roughness measurements are an important factor in making decisions towards spending limited budgets for maintenance and improvements. Due to this, specifications for roughness have been adopted
There are three possible conditions associated thermal regimes impact on roads; they are (a)sustained winter thermal regime during winter months;(b) fluctuating thermal regimes during autumn and spring, and (c)sustained thermal regime starting off in spring. The potential impacts of this on flexible type pavement are as follows;