We have had both. Concrete tends to look better and hold up longer, but the surface stones can pop out and the concrete can crack. It is more expensive to install than concrete. We paid additional for a formula that would have fewer surface pops.
New asphalt driveways look nice, too. There are pros and cons to sealing them every year. Sealants give the driveway a new look but don't necessarily prolong the life of the driveway. The surface of an asphalt driveway can become uneven and will crack. Tire pivot points will wear and tire depressions will form where vehicles are regularly parked. The dark color can be a heat sink due to sun exposure and can actually soften with the heat That can be a negative during a hot summer, but our south-facing asphalt driveway seemed to finish snow removal jobs by melting whatever remained. Asphalt is less expensive, but generally needs to be replaced more often than concrete.
Some folks have gone to using paving bricks in driveways. That looks nice, but you have to fight weeks growing in the cracks and it makes for a noisy and bumpy ride for anything wheeled across it. (think wheeled garbage bins or luggage).
Whichever driveway you choose, you need to do your homework on the proper installation and watch that your contractor adheres to those parameters. Also check the contractor's guarantees and reputation. We had to take one contractor to court because an asphalt driveway was installed cold and didn't last a year.
Temprature of concrete while pouring at site should be in the range 23 to 28 degree C.
The 's' stands for 'slump'. How wet the concrete is. S1 is prity dry (for laying kerb stones). S2 is wet (for foundations). S3 is very wet (pump mixes). Regards Colin, a Tarmac concrete batcher. 2nd Answer: It should be noted that the concrete should be as dry as practical to enable it to attain the highest potential strength. Concrete should never be so wet that it flows into the forms like tomato soup. In foundations in particular, you want the best strength you can get, as the entire structure will apply force to them. It should take some handwork with shovels to "ker-chunk" the concrete into the nooks and crannies of the forms. For vertical forms, using a 'stinger' or vibratory device is preferred to settle the concrete into all the nooks and crannies. A 4" slump is about as wet as you want the concrete mix to be. If you pick up a handful (with gloves) of fresh concrete and mold it into a fat cigar shape, it should hold that shape when you open your fingers. When the concrete mix comes down the chute of the delivery truck, it should stand up on the ground in a little hill, but with some spreading out, too. For all but the dry structural concretes, you can increase the fresh concrete's slump (wetter) by adding 1 gallon of water for each cubic yard of concrete for each additional inch of slump desired.
25 mm cover should be given
The proportion of the bed mortar should be 4:1 for the sand : cement.
Fair faced concrete is one which after removal of form work is not required to have any further finishes on it like plastering, etc. Since concrete surface is intended to remain visible all relevant specifications of the concrete surface need to be given in the Tender. Broadly speaking these specification besides giving compressive strength, etc. of the concrete should also be dealing with desired appearance of the concrete. As in all works, they should also specify tolerance limits of defects or blemishes for fair faced concrete. Generally blemishes associated with Fair faced concrete are Blowholes, Steps, Fins, Colour variation, etc. For details and better understanding you may refer to 'Guide to Off form concrete finishes' published by Cement Concrete and Aggregates Australia' Though in India we do not follow it I found it interesting and quite in detail.
Asphalt moves so much with shrinking and swelling it's rediculous to try. If you really want tile in your carport I suggest you lay a sheet of plastic over the asphalt and apply a layer of concrete on the plastic making sure you frame out the sides to make a solid pad. A self leveling cement like "ardex" on top of the concrete should make a nice surface for tiling. Tile over the cement and you should be fine.
Aggregates must be well graded in order not to have a gap that may cause a weak point and that is necessary for : 1-Asphalt mixes 2-concrete mixes 3-Road material.
The term 'asphalt jungle' is a term for the part of a city that should be avoided at night. It compares the dangers of the jungle in a place paved in asphalt.
The best concrete for making a concrete bench is Bench concrete.
edges low side center
There are many kinds saw blade, diamond saw blade and carbide saw blade. You should choose the saw blade according to the application, like wood, metal, stone, concrete, wall and so on.
which concrete resist frost action
For what thickness and width? Typical finished and compacted asphalt concrete weighs 140 to 150 lbs per cubic foot. The density depends on how compact it is and what type, size, and percentage of aggregates are used. So a one yard by one yard cut of a typical local road (4" thickness) should weigh close to 450lbs
concrete strength requirements
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you should choose class a
4WD shouldn't be operated while on dry concrete or asphalt. Not only does it affect steering, it also wears tires and can stress the drive train. While you should be able to turn the steering, the vehicle will tend to drag when you try to take a turn if it's in 4WD.