NATURAL STONE DESIGN
Q1: Our water shut-off cap (on the driveway) is loose/detached/missing. What should we do ?
Don’t be concerned and thank you for informing us. With your permission,we will notify the municipality’s Department of Public Works. They will do a service call to correct the problem. This will ensure that the issue has been corrected, prior to applying asphalt to the driveway. This will not delay the repaving process. The municipality will correct the issues within a maximum of 2-4 weeks.
A2: On average we will remove the existing pavement, within 2 weeks. Following removal, CENTURY PAVING & CONSTRUCTION utilizes several important steps to ensure a good and long-lasting installation. 3/4″ crusher run is applied over the surface of the entire driveway. The entire surface area is then compacted, using a heavy paving roller. In areas where a paving roller cannot be used, a mechanical tamper and a hand tamper will be utilized. At which point the driveway is leveled and graded. After compaction, leveling and grading, the 3/4″ crusher run is allowed to settle for approximately 3 weeks. Regular use of the driveway is strongly encouraged. Heavy vehicles, rain (and even watering the driveway) are beneficial for promoting settling during this time period. Every driveway has several “soft spots” , usually due to subgrade (soil) sinkage. It is imperative that these areas be allowed to settle, prior to the next step. Prior to a new asphalt application, 3/4″ crusher run, is once again applied to the driveway. The driveway is then compacted, again. 3/4″ crusher run is reapplied until no sunken areas exist. The driveway is then compacted, leveled and graded, again. A final compaction, of 3/4″ crusher run, follows. This entire process, described above; is the most important factor, in ensuring pavement durability and it’s ability to support the weight of vehicles on the driveway’s surface. Pavement failure will not occur, following proper compaction.
A3: The driveway will last 20-35 years.
A4: CENTURY PAVING & CONSTRUCTION, will ONLY apply asphalt using a spreader machine. This machine is instrumental in laying,an even and uniform coat of asphalt. It is designed to lay the asphalt, perfectly. The dispersed hot asphalt-mix thickness will be a MINIMUM of 3″ inches thick. The compacted thickness, will be 2.25-2.75 “. Thus, the spreader compensate for any slight aggregate base variation, during the asphalt-application process.
A5: A building permit is not required for the replacement of an asphalt driveway in Vaughan. However; if, the project involves excavation, we will contact “Locate” to ensure that we do not damage underground cables (cable/telephone) or utilities (gas/electrical), during the excavation.
A6: The paving season, typically begins in mid-April and ends in November. Paving can be done at any time, weather permitting.
A7: For residential properties, 2.25″-2.75″ of compacted asphalt is optimal. For commercial properties, it is usually around 4″ of compacted asphalt . Remember, the most important factor is the sloping, grading and compaction of the base material (3/4″ crusher run). The base must be prepared properly. This is the main factor for a durable and long-lasting driveway.
A8: Absolutely. Asphalt and any other new installation, is GUARANTEED IN WRITING.
A9: We DO NOT recommend that you seal your driveway, prior to one year following paving. Sealing your asphalt too soon will cause the asphalt to soften. There are several types of sealant available. We highly recommend a petroleum-asphalt sealant. This type of sealant will actually penetrate and bond to your asphalt. Avoid acrylic and coal-tar emulsion sealants.
A:10 Usually, 5 days are required.
A11: We suggest that you exercise special caution for the first 1-2 years, following paving .It will take asphalt 1-2 years to fully cure and harden. However; asphalt will soften during hot weather. Please, try to avoid the following : * Never turn the wheel of your vehicle, when it is stopped or parked. This action will leave marks on the asphalt. * Avoid placing heavy objects on your driveway, such as motorcycle kickstands, heavy flowerpots and ladders. *Avoid parking in the exact same spot, every time. * If, you are away for an extended period of time (vacation); Please, try not leave vehicles on the driveway. * Park 1ft. away from the edges of the driveway. * Always avoid any contact between petroleum products and asphalt. This includes : Gasoline, motor oil, transmission fluid, break fluid and radiator anti-freeze. These products will act as solvents and will damage the asphalt.
A12: This is not advisable, for many reasons. First, the new asphalt would be of a different height, then that of the interlocking stone. This would create a safety concern. A trip-hazard is created and water/ice would gather in the sunken area, between the two surfaces. Aside from additional safety concerns, water and ice will compromise the structure of asphalt by penetrating beneath it. Furthermore; attempting to remove interlocking stone , which is attached asphalt is difficult. The interlocking stone, would need to have the asphalt removed from it….and the asphalt would need to be cut, creating a gap between the two surfaces. It would be much wiser, to level the interlocking surface to the proper height, followed by the installation of asphalt. This would make the overall task more practical. Furthermore a good seal and retainer would be created, between the two surfaces.
Q1: Will some sinkage occur with interlocking stone ?
Q1: Can temperatures affect the installation of concrete ?
A1: Temperature extremes make it difficult for concrete to cure properly. On very hot days too much water can be lost rapidly by newly formed concrete. Similarly, if temperatures drop too low, hydration will slow down drastically. In both cases, concrete can become more brittle. If the temperature falls below 7 degrees, finishing concrete is not advisable. Through the use of 4mm plastic sheeting and by spraying with water, concrete can be made to cure properly.
A2: Concrete for these surfaces will be 4″-6″ thick. A driveway will be 7″-8″ thick. However, the most important factor for structure duirability is the presence of a good and well compacted aggregate (gravel) base. This is what will evenly support the immense weight of the above concrete structure. For a walkway/landing/patio, the thickness of gravel should be 4″-6″. A driveway will require 9″-12″ of gravel. Furthermore; it is very important to check what the subgrade is made of and adjust the project accordingly. A firm subgrade is just as important as a good gravel base.
A3: Absolutely. 6″ 9size of grid opening) steel reinforcing mesh must be layed, before pouring concrete
A4: 3500 PSI concrete can handle pressures as high as 3500 pound per square inch, without failing. However: an important part of structural strength depends on the support provided to the structure by a good base. The thicker the sub-base and base, the more load the slab will be able to support.
A6: It is very important to mark buried cables and utilities to avoid damaging them. Excavation without “locates” can have very costly results. We will contact the appropriate agency to receive all clearances, prior to excavation.
A7: We recommend that 72 hours be allowed to pass, before attempting to drive a vehicle onto a driveway.
A8: Control joints need to be 8′-12′ apart.