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 Lemay, Missouri
Lemay is a census-designated place (CDP) in south St. Louis County, Missouri, United States. The population was 16,645 at the 2010 census.
Lemay was named after Francois Lemai, who operated a ferry boat across the Meramec River in the early nineteenth century.
According to the United States Census Bureau, the CDP has a total area of 4.5 square miles (12 km), of which 4.3 square miles (11 km2) is land and 0.2 square miles (0.52 km), or 4.19%, is water.
At the 2000 census there were 17,215 people, 7,186 households, and 4,390 families living in the CDP. The population density was 3,959.0 inhabitants per square mile (1,528.6/km). There were 7,580 housing units at an average density of 1,743.2 per square mile (673.1/km2). The racial makeup of the CDP was 98.51% White, 0.02% African American, 0.007% Native American, 0.53% Asian, 0.01% Pacific Islander, 0.66% from other races, and 0.96% from two or more races. Hispanic or Latino of any race were 1.03%.
Of the 7,186 households 26.5% had children under the age of 18 living with them, 43.6% were married couples living together, 12.6% had a female householder with no husband present, and 38.9% were non-families. 34.3% of households were one person and 16.8% were one person aged 65 or older. The average household size is 2.33 and the average family size was 2.99.
The age distribution was 22.8% under the age of 18, 7.7% from 18 to 24, 27.9% from 25 to 44, 21.4% from 45 to 64, and 20.1% 65 or older. The median age was 39 years. For every 100 females, there were 89.8 males. For every 100 females age 18 and over, there were 84.0 males.
The median household income was $34,559 and the median family income was $41,128. Males had a median income of $31,886 versus $25,388 for females. The per capita income for the CDP was $18,730. About 7.1% of families and 10.4% of the population were below the poverty line, including 13.2% of those under the age of 18 and 11.3% of those ages 65 and older.
The River City Casino is located in Lemay.
Hancock is the primary school district in Lemay. Hancock enrolls approximately 1600 students. Hancock High School is located at 229 West Ripa Ave. Hancock Middle School is located at 243 West Ripa Ave. Hancock Elementary School is located at 9101 South Broadway Ave. Hancock Early Childhood Center is located at 9417 South Broadway Ave.