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CONCRETE CURE TIME: HOW LONG UNTIL CONCRETE IS FULLY DRY

When concrete contractors install a driveway, sidewalk, patio, or concrete slab floor, they will advise the client that the surface must cure before being walked or driven upon. Concrete cure time is the process of allowing the new surface to fully dry and develop its strength and water resistance in the process.

Proper concrete curing will also improve the mechanical properties of the new surface, such as delaying any shrinkage and resisting any cracking while the new floor is still drying. The slower the concrete cure time, the more moisture will remain in the material, which will allow for a stronger, more durable concrete floor.

Different concrete cure methods

The amount of time it will take for any concrete cure time depends upon many factors, such as how much moisture is in the air, sunlight, temperature, along with the composition of the cement. Also, there are 3 main concrete drying methods that may affect how long concrete contractors will advise customers to stay off the new concrete floor.

  • Water curing involves sprinkling, misting, or ponding of the surface with water.
  • Concrete coverage slows down curing with wet sand, wet burlap, or wet straw
  • Waterproof barriers such as plastic film or waterproof paper

The purpose of each curing method is to retain moisture in the concrete for as possible to as the new surface gains additional strength. This process of developing strength is actually the growth of a crystal matrix (or hard finger-like projections) within the concrete as the Portland cement reacts with water.

This intertwining of the cement, sand, and gravel is what makes concrete one of the most durable surfaces for supporting the weight of cars and SUVs, tractor trailers, and large machinery.

How long should concrete dry?

When it come to concrete cure time, always follow the suggestions of concrete contractors that have installed your new concrete surface. But, general concrete cure times are as follows:

  • 24 to 48 hours – after the initial concrete pour, the forms can be removed, and the new concrete surface can withstand foot traffic, so people can walk on the surface
  • 7 -10 days – which is just a partial concrete cure time, but the new surface can support vehicular traffic and the movement of equipment across the floor.
  • 28 days – in just under 30 days, the concrete should be fully cured and can handle the full weight or full pounds per square foot as determined by the concrete mix strength

These time considerations will also depend on the quality and strength of the concrete mixture, the thickness of the concrete slab, any adverse weather conditions, along with the professionalism of the installation.

Problems with concrete that is not cured correctly

When the full concrete cure time is not allowed before substantial weight is applied to the new surface, the surface’s durability, water-tightness, and strength will all be diminished. Also, improper curing can result in a concrete floor or surface that will tend to develop thermal cracks and plastic shrinkage cracks.

Once cracks start to develop throughout the concrete, you can expect water infiltration, weed growth, chipping, spalling, dips, and bulges that will make the surface unsightly, difficult to walk/drive on, and will greatly reduce the life span of the concrete surface.

To avoid these problems with concrete slab that is not installed or cured properly, always use professional concrete contractors for your projects.

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7 BENEFITS OF INSTALLING CONCRETE DRIVEWAYS

Many homeowners and business owners ask, “which driveway material is best”. The choices include brick, asphalt, pavers, gravel, or a concrete driveway. But, when you ask any driveway contractor, they will tell you that a concrete driveway is the best material, by far.

Pavers, gravel, and brick have the problem of sinking into the soil, causing an uneven and bumpy driveway. You can also weed growth in the joints along with trip and fall hazards. Asphalt driveways have a much shorter life span when compared to a concrete driveway. The problems with asphalt driveways include crumbling, dips and upheavals, along with a lot of cracking on the surface and edges.

A professional concrete contractor is expert at choosing the right concrete mix, will determine the appropriate driveway thickness, and install rebar if necessary to provide additional structural and weight capacity for your driveway.

7 Concrete Driveway Benefits

1. Long-lasting driveway surface

A concrete driveway installed by a concrete contractor can last 25 to 30 years. With little maintenance and in moderate climates, you can expect your concrete driveway to outlast all other materials that are available.

2. Easier to maintain

Concrete driveways are low maintenance surfaces. If the driveway is exposed to harsh weather or heavy traffic, then re-sealing the concrete surface more often to maintain its pristine condition.

3. Holds up better to heat and light

Asphalt driveways react badly to both heat and light. Yet, concrete is almost impervious to UV radiation or high summer temperatures. A concrete driveway is the preferred material for warmer climates because it can withstand exposure to direct sunlight and heat without deterioration.

4. Better load-bearing capacity

If you park multiple cars or heavy vehicles like SUVs or pickup trucks in your driveway, then concrete is the best material to bear up under heavy weight. This is because concrete is a non-flexible material that will not dip or buckle due to weight concerns.

5. Environmentally-friendly material

Concrete is made of cement, sand, and gravel, while asphalt is a mixture of high-VOC (volatile organic compound), petroleum-based materials that will constantly release harmful fumes into the atmosphere and the soil. Concrete is considered a sustainable building material because almost 100% of it can be recycled.

6. Sell your property faster

A concrete driveway can increase the value of your home by up to 10% when you decide to sell. Also, home buyers look for a driveway that has been installed by a concrete contractorbecause they know it will last longer, with little or no maintenance.

7. Easier to remove ice and snow

Because concrete driveways will not dip or bulge when installed and maintained properly, it will be easier to shovel or run a snow blower across. Also, there are good ice melt options available that will not corrode or deteriorate your concrete driveway surface.

If you want a driveway that features a bright, professional appearance without messy surface issues, then concrete is the better choice when compared to asphalt, brick, pavers, gravel, or other materials. Also, today’s concrete contractor can create a unique, custom driveway for your home.

Stamped concrete, border details, and a wider variety of concrete stains can add personality and pizzazz to your home.

To learn more about how a modern concrete driveway can increase the value of your home and reduce your outdoor maintenance, talk with a concrete contractor, today!

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Commercial Water Drainage Tips for Concrete

If you have a concrete outdoor area such as a parking lot or patio that is having issues with drainage, there are things that can be done to help. Start by implementing these three improvements:

1. A Porous Top Paving Layer – Adding a coating such as asphalt will help the area to absorb some water. While asphalt will not absorb all of the water from a large rain storm, it will typically absorb between five to ten percent of the water, helping to eliminate deep puddles. Asphalt drainage is typically not thought of when other drainage solutions are being considered, but it can be an extremely cost effective way to improve the appearance and reduce the maintenance on a property.

2. Surface and Subsurface Drainage – Have a professional asphalt paving company review your surface and subsurface drainage systems. Often, regular maintenance will help to eliminate blockages such as debris and weeds clogging inlets. In some cases it may be a good idea to construct a new drain inlet or even add additional water storage under the concrete.

3. Local Conditions – People often wonder why their concrete pad has suddenly stopped draining water after a storm, especially if it has “worked” for years”. If nothing is wrong with the coating and drain maintenance is up to date, it might just be that local conditions have changed. This may mean that there are more storms, or improvements in the nearby area may be forcing water onto your property. Fortunately, asphalt companies are often able to devise a solution to help. Here are four of the most common solutions that are implemented by our team of professionals.

4 Ways Concrete and Asphalt Can Aid Commercial Drainage

1. Pervious Concrete – Pervious concrete has been around for a few decades, but the recent change in weather patterns and a focus on eliminating standing water has caused a renewed surge in interest. Pervious concrete can be poured into just about any shape or pattern you can imagine, and it will topically absorb three to four times more water than “standard” concrete.

2. Concrete Drainage Additions Can Assist Standard Blends – If you’re looking at improving the drainage in an already existing concrete structure, then you’ll likely want to construct additional drains. This may mean adding more inlets, and/or improving the drainage system so that more water can be stored by adding additional piping or gravel drainage under or around the area.

3. Concrete and Asphalt Can Be Sloped – Adding a slight slope to a concrete or asphalt area will help water to drain to an empty field. These slopes are very mild (typically less than 2%), and most people don’t notice that a parking lot or patio is sloped when they’re using it. In fact, most paved areas are designed to have a slight slope, but over time it’s possible for asphalt, concrete, and the gravel underneath them to shift slightly, essentially “flattening out” these areas.

4. Asphalt Can Also Be Extra-Porous. Apshalt, like concrete, can be mixed and poured to be more or less porous. Consider using a type of asphalt that is more porous. This will allow an area to absorb more water, increasing the overall absorption in some cases by up to ten percent or more.

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6 COMMON CAUSES BEHIND PARKING LOT BREAKDOWN

If you’re the owner or manager of a building with a parking lot, you may have noticed that it’s starting to show signs of wear. An asphalt parking lot is exposed to several elements that can cause severe damage over time.

1. Harsh Weather Conditions

Freezing temperatures can cause water from rain and snow to freeze, causing micro cracks in the asphalt to expand. Over time, this will cause the surface of the parking lot to crumble.

2. Dirt, Debris, or Engine Oil Spills

Just about any type of dirt or debris can trap moisture, preventing it from evaporating or draining properly. Even oil and other non water substances can be absorbed by the asphalt coating on a parking lot. Over time, this moisture seeps into the asphalt, causing fissures as the temperature drops and the moisture freezes.

3. Poor Drainage System

A faulty or clogged drainage system will prevent water from draining properly. Water that ponds on top of the asphalt can cause a number of problems. In addition to the aforementioned freezing and cracking, the debris, oil, and acids that are trapped by puddles of water can wear away at the asphalt covering of a parking lot. Be aware that in addition to fixing the damage that has been done by the standing water, a property owner will also need to fix the drainage system. This may be as simple as removing debris from drain inlets, but it may also require reconstruction of pipes, outlets, and/or drain fields.

4. Low-Quality Sealants

If a parking lot was never sealed properly by the original asphalt contractors it will likely start to deteriorate much faster than one that was properly sealed. An improperly sealed parking lot will have a lot of cracks as the underlying gravel layers will be exposed to the elements. This means that over time the asphalt coating will wear away and the gravel underneath will be exposed. If the parking lot is in regular use, this will mean that the rocks in this layer will become scattered and uneven. Eventually, parking lots in this state may need to be completely rebuilt, not just resealed.

5. Heavy Vehicles or Machinery

Heavy machinery and other equipment puts a large weight load on the asphalt and gravel layers of a parking lot. Depending on the type of soil the parking lot has been built on, heavy equipment will compact the gravel layers under the asphalt and cause cracking in the top layer of asphalt. In fact, it’s not uncommon for layers under the asphalt to deform without there being any immediate indication of damage. This is because the top layer of asphalt has a small amount of flexibility, allowing heavy equipment to rest on its surface without showing cracks. Under the surface, however, the newly compacted gravel layers will form gaps between the asphalt and the gravel. Over time, this will lead to deformation of the entire parking lot.

6. General Neglect

When a parking lot has been neglected for a long time, it’s likely that it will have all of these problems. Lack of maintenance will cause clogged drainage systems, which will result in an increase in debris and other build up on the surface of the parking lot. Over time, this will result in large parts of the parking lot crumbling and cracking.

By admin Asphalt Paving • • • 0 Comments

Common Asphalt Paving Errors [How to Avoid Them]

When you have quality asphalt paving in your driveway, it makes a massive difference in the way your house looks. Asphalt is a durable material, and it can improve your curb appeal. However, when you or your contractor do not install it correctly, you will have problems later on down the road. Please continue reading to find out more about the common paving errors and how to avoid them.

1. Poor Project Planning

Proper planning is essential for the installation and maintenance of asphalt paving. Ensuring that you have all of the appropriate equipment and material is part of the planning process. You also want to have the best weather conditions possible and should consider that when planning. You want to spend the appropriate amount of time on the project. You do not want to rush through it. If you are not experienced with installing asphalt, you want to find a qualified asphalt contractor.

2. Paying Less for Poor Quality Work

Price is essential when searching for asphalt companies, but it should not be the only factor. While you may find a contractor that is affordable, it does not mean they will provide quality work. Therefore, you want to be cautious about selecting the asphalt contractor that offers the lowest price.

3. Choosing Low-Quality Materials

You may not realize it, but there are various types of asphalt paving materials available. They are not the same as they have varying quality. While we all want to save money where we can, you may not want to purchase more affordable material to decrease the price. When poor-quality asphalt is used, the results are often poor and less than expected. Instead, you want to purchase high-quality asphalt to ensure you have a smooth surface without any imperfections. Higher-quality asphalt holds up better to wear and tear and severe weather.

4. Rushing the Process

You want to take your time with your asphalt paving project. When you rush the project, there is a chance you will not follow the proper procedure. You also want to install the asphalt at the same speed the entire time. You do not want to speed up or slow down in different areas because it impacts how uniform the paving looks. Any asphalt contractor you select should use speed limiters to ensure you have a consistent and clean application of your asphalt.

5. Choosing the Wrong Asphalt Contractor

You want to select a highly qualified and reputable asphalt contractor. There are a number of asphalt companies available, but they are not all the same. You want one that is experienced and pays attention to the details because they matter, especially in paving. The contractor you select should plan well for the project, have the right equipment, and pay attention to the weather. You do not have to select the most expensive contractor, but you do not want to pick the cheapest. Adhering to your budget is essential, but you should not make your decision solely on cost. You also want to select a contractor that uses high-quality equipment and knows how to operate it.

If you keep these tips in mind when you are planning your asphalt paving job, you will have smooth, quality asphalt when you are finished.