New concrete will need to cure for several days. Depending on how much weight it is going to hold, this should be postponed as many extra days as possible.
Yes, you can put pavers over concrete for a new patio design.
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weight of hardened concrete + 100 kgf/m3
in between existing concrete and the new concrete you need to place an expansion joint in between the two.
Yes, you can put an above ground pool on concrete. Some considerations to keep in mind include ensuring the concrete is level and smooth, providing proper drainage to prevent water accumulation, and using a protective barrier to prevent damage to the pool liner. Additionally, consider the weight capacity of the concrete and the pool to ensure it can support the pool's weight when filled with water.
the lightweight concrete weights are depends upon their aggregates.... basically the weight of lightweight concrete is 50lb/cubic feet
Concrete is used in building a skyscraper to help make it wind proof and able to support its own weight. The building can also be earthquake safe when rods are put through the concrete to make it stable.
Weight of concrete is 155 lbs/cft or 70.308 kg/cum
The weight of a concrete 80 lb bag is 80 pounds.
unit weight= weight/volume.unit weight of normal concrete = 24 MPaIt is also known as density of concrete
Yes, if the base is stable the new layer will bond and create a new, fresh surface.An unstable base will give bad results. You should pressure wash the old concrete to get rid of loose and spalling concrete and you should use a bonding agent to serve as a primer to get the new layer to bond well to the old.Obviously, if the new concrete is laid over concrete that is subsiding because of a sinking foundation, the new concrete will crack. You need to stabilize the old concrete before pouring new over it.If you put new over old, it needs to be at least a couple inches thick else it will not cure properly. If you simply want to improve the surface, there are special self-levelling concrete mixes that can be poured thinner and still be strong. Take a look at the link below for a good how-to.
The weight of a concrete mixer truck can vary depending on the size of the truck and if the truck is weighted with concrete it may be carrying. A concrete mixer truck is about 20,000 to 30,000 pounds without concrete.