What does PCF stand for in concrete?
To compute the full fluid pressure, multiply the concrete height by the unit weight of the fresh concrete [150 pounds per cubic foot (pcf) for standard weight concrete] as shown in Example 1. For a concrete height of 10 feet, the full fluid pressure is equal to 1,500 pounds per square foot (psf).
What is the unit weight of concrete in PCF?
The unit weight of precast concrete girders is generally taken as 10 pcf greater than the unit weight of plain concrete due to the weight of reinforcement and strands….
|Member Types||Concrete Unit Weights (pcf)|
|Precast pretensioned or post-tensioned spliced girders||155||165|
|All other concretes||150||155|
What is the concrete density?
around 2,400 kilograms per cubic metre
The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). Reinforced concrete is the most common form of concrete.
What is the density of concrete in G cm3?
of concrete is to a large extent dependent on its density which in the case of ordinary concrete generally ranges between 2.2 and 2.4 g/cm3. Heavy or high-density aggregates are used to increase the density of concrete.
What is PCF construction?
PCF Construction Abbreviation. 3. pcf. Pounds Per Cubic Foot + 1 variant. Architectural, Architecture, Technology.
How many cement bags do I need for 1m3?
Thus, the quantity of cement required for 1 cubic meter of concrete = 0.98/0.1345 = 7.29 bags of cement. The quantities of materials for 1 m3 of concrete production can be calculated as follows: The weight of cement required = 7.29 x 50 = 364.5 kg. Weight of fine aggregate (sand) = 1.5 x 364.5 = 546.75 kg.
How heavy is 1m3 of concrete?
Standard concrete weighs typically between 2.3 and 2.4t per M3. If you are looking for lightweight or heavy dense concretes please speak to the customer service team.
What are the 4 main properties of concrete?
The properties of hardened concrete
- Mechanical strength, in particular compressive strength. The strength of normal concrete varies between 25 and 40 MPa.
- Porosity and density.
- Fire resistance.
- Thermal and acoustic insulation properties.
- Impact resistance.
Why is bulk density important in concrete?
During the concrete mix design, when the aggregate is to be batched by volume or by weight, then it becomes necessary to know the mass of the aggregates that will fill the container of unit volume. Bulk density also indicates the compactive effort required to compact the concrete.
What are the strengths of a fill concrete?
They are capable of developing compressive strengths in excess of 2,500 psi and the majority can achieve strengths of 6,000 psi or more. Between these two extremes, with strengths ranging from 1,000 to 2,000 psi, and unit weights from 50 to 85 pcf, are the fill concretes.
How is cellular concrete used in concrete construction?
Cellular concrete is created by introducing foam into the concrete mix to result in a matrix of air bubbles. Cellular concrete can be produced at unit weights from 110 pcf to as low as 15 pcf. The newest innovation in cellular is pervious cellular concrete that allows the mix to retain water and to drain.
What is the weight of structural lightweight concrete?
Download the PDF version of this article. Structural lightweight concrete is defined as having a 28 day compressive strength in excess of 2,500 psi and a unit weight ranging from 85 or 90 pcf to 115 pcf. Generally speaking, concrete in this range of strength and weight is produced with expanded shales, clays, slates, and slags.
How much does a cubic foot of concrete weigh?
A fairly satisfactory means of cataloging the weight and strength range of these concretes is by a concrete “spectrum” which spreads the weight range of concretes from a low of 15 pounds per cubic foot to a high of 120 pounds per cubic foot.