About Crack Sealing
How to Evaluate the Effectiveness of Asphalt Crack Sealing
The process of asphalt crack sealing is a great way to improve the appearance of your driveway or parking lot. There are several factors to consider before choosing the right type of sealant: cost, environmental impact, and quality. Listed below are some of the main factors to consider. Once you've decided which method to use, you can move forward to the next step: evaluating the quality of sealants and the effectiveness of your crack sealing project.
Cost-effectiveness
To determine the effectiveness of different methods of crack sealing, researchers have analyzed the performance of unsealed and sealed pavement. Most studies have focused on unsealed pavement and found that sealing improves pavement performance. However, not many studies have compared the cost-benefit of different techniques. This research aims to address this gap. In this article, we will discuss the differences and similarities between these two methods.
Although it is an important preventive maintenance strategy, pavement experts differ on which method is more cost-effective. Using literature review, a survey, and field performance data, researchers have developed a cost-effectiveness guideline for pavement crack sealing. The results from this study provide a basis for comparing the various methods. Crack sealing is also more expensive than crack filling. Despite its initial high cost, crack sealing may offer longer service. More research is needed to determine whether higher performance materials are truly beneficial.
Environmental impact
While asphalt crack sealing may not have a negative environmental impact, it can have a detrimental impact on pavements. When applied improperly, crack sealing can cause damage to asphalt pavements due to moisture entrapment. Unlike other types of surface treatments, crack sealing prevents water from escaping upwards. In fact, crack sealing can reduce the lifespan of pavements by 1.1 to 2 years. This can lead to an increase in maintenance and rehabilitation costs.
This study shows that a crack seal technique can reduce emissions of nitrogen oxide and sulphur dioxide by 50 percent. However, the crack seal method has the lowest overall emission reduction. The researchers suggest that all methods of preventive maintenance reduce carbon dioxide emissions. They recommend that new pavement studies incorporate sustainable pavement management components and consider the environmental impact of asphalt crack sealing. The study concludes that future pavements must incorporate a comprehensive life-cycle assessment to evaluate their overall environmental impact.
Quality of sealant
When determining the quality of asphalt crack sealant, consider the following factors: Size, shape, moisture content, and repair method. Crack sealant's success depends on several factors. Generally, a crack less than 20% in crack density requires a more flexible product. In contrast, a larger crack density requires a stiffer sealant. In addition, sealant's tackiness decreases after it has been cured.
When choosing an asphalt crack filler, make sure to choose one with the right adhesive properties. Asphalt filler is not rubberized, and it might dislodge if the pavement moves. Sealant, on the other hand, expands and contracts with the pavement. If the crack filler doesn't expand and contract with the pavement, it is not the right choice. For this reason, choosing a high-quality asphalt crack filler is imperative.
About Oakville, Missouri
Oakville is a census-designated place (CDP) in south St. Louis County, Missouri, United States. The population was 36,301 at the 2020 census. Oakville is 18 miles south of the city of St. Louis and borders the Mississippi and Meramec rivers; the area is part of "South County" (south St. Louis County).
According to the United States Census Bureau, the CDP has a total area of 30.93 square miles (80.11 km), of which 15.93 square miles (41.26 km2) is land and 1.80 square miles (4.66 km) is water.
As of the census of 2010, there were 36,143 people, 13,788 households, and 10,511 families living in the CDP. The population density was 2,268.9 inhabitants per square mile (876.0/km2). There were 14,314 housing units at an average density of 898.6 per square mile (347.0/km). The racial makeup of the CDP was 96.0% White, 0.8% African American, 0.1% Native American, 1.8% Asian, 0.3% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.4% of the population.
There were 13,788 households, of which 32.4% had children under the age of 18 living with them, 65.4% were married couples living together, 7.7% had a female householder with no husband present, 3.2% had a male householder with no wife present, and 23.8% were non-families. 19.9% of all households were made up of individuals, and 8% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.02.
The median age in the CDP was 43.7 years. 22.8% of residents were under the age of 18; 8% were between the ages of 18 and 24; 21.1% were from 25 to 44; 33.9% were from 45 to 64; and 14.3% were 65 years of age or older. The gender makeup of the CDP was 49.0% male and 51.0% female.
As of the census of 2000, there were 35,309 people, 12,530 households, and 9,923 families living in the CDP. The population density was 2,196.4 inhabitants per square mile (848.0/km2). There were 12,791 housing units at an average density of 795.7 per square mile (307.2/km). The racial makeup of the CDP was 98.19% White, 0.07% African American, 0.01% Native American, 0.92% Asian, 0.02% Pacific Islander, 0.20% from other races, and 0.60% from two or more races. Hispanic or Latino of any race were 1.03% of the population.
There were 12,530 households, out of which 39.1% had children under the age of 18 living with them, 69.6% were married couples living together, 7.0% had a female householder with no husband present, and 20.8% were non-families. 17.3% of all households were made up of individuals, and 5.8% had someone living alone who was 65 years of age or older. The average household size was 2.81 and the average family size was 3.20.
In the CDP, the population was spread out, with 27.0% under the age of 18, 8.9% from 18 to 24, 26.8% from 25 to 44, 27.6% from 45 to 64, and 9.6% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 97.2 males. For every 100 females age 18 and over, there were 94.0 males.
The median income for a household in the CDP was $68,248, and the median income for a family was $76,223 (these figures had risen to $73,027 and $87,568 respectively as of a 2007 estimate). Males had a median income of $52,123 versus $33,604 for females. The per capita income for the CDP was $26,750. About 2.0% of families and 2.8% of the population were below the poverty line, including 3.3% of those under age 18 and 4.0% of those age 65 or over.
Oakville belongs entirely to the Mehlville School District (R-9) and the St. Louis County Special School District. Oakville High School and Mehlville High School are the two high schools in the Mehlville School District, but only Oakville High School is located in the Oakville area. Oakville Middle School is also located within the Mehlville School district. There are three Catholic grade schools in Oakville: St. Francis of Assisi, Queen of All Saints, and St. Margaret Mary Alacoque.
St. Louis Community College's South County Education and University Center is located off Meramec Bottom Road at Lemay Ferry Road.
The St. Louis County Library Cliff Cave Branch is in Oakville CDP.