Question 1

What is the lifespan of asphalt pavement?

Accepted Answer

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You can expect your asphalt pavement to last anywhere from 20 to 30 years, or 25 years on average. The life expectancy of your asphalt driveway depends on the climate, the amount of traffic, and how well you maintain it. While you can’t necessarily control some of these factors, you can control the amount of maintenance effort you put into your driveway.

To prevent your asphalt from deteriorating prematurely, you should follow a good maintenance routine involving regular cleaning, reparation work, and resealing.

Question 2

Is permeable paving expensive?

Accepted Answer

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Yes, permeable paving is expensive. For driveways, expect to pay up to $70 per square foot; for patios, permeable paving can cost up to $30 per square foot. Costs will depend on the type of material you choose, plus the standard labor rate in your area.

Question 3

How do you adhere pavers to concrete?

Accepted Answer

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To adhere pavers to concrete, you can use either mortar or a concrete-specific adhesive. For border pavers, a polyurethane-based adhesive is a good choice as it expands and contracts with temperature changes, keeping them firmly in place. For the non-border pavers, polymeric sand is used between the joints to prevent shifting. In most cases, it is also recommended to lay a permeable sand layer below the pavers to ensure proper stability and drainage. Before starting, always take the proper preparatory steps for a professional result.

Question 4

What is the difference between travertine tiles and travertine pavers?

Accepted Answer

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Generally speaking, tiles are for indoor use, while pavers are for outdoor use. The main difference between travertine tiles and pavers is their thickness. Tiles are around 1/2 inch thick, and pavers are 1 1/4 inches to 2 inches thick.

Pavers are more rugged and can handle different weather. The extra thickness on pavers also makes them ideal for high-traffic areas.

Question 5

What’s the difference between asphalt and blacktop?

Accepted Answer

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While blacktop is a type of asphalt, the terms should not be used interchangeably, as not all asphalt qualifies as blacktop. The primary differences are in their composition, production process, and ideal applications. Blacktop contains more stone than other types of asphalt and is heated to a higher temperature during production—300°F or more—while hot-mix asphalt is heated to between 275°F and 300°F. The ratio of bitumen (a tar-like crude oil) is a key differentiator, though sources vary: some state blacktop has less bitumen, making it less durable, while others claim it has a higher ratio. Due to these differences, asphalt is generally more durable and better for high-traffic areas like highways and streets, while blacktop is more suitable for playgrounds and residential driveways. For a driveway project, it is best to consult a professional to determine the most appropriate material.