Pumpable concrete is the concrete which can easily pass through a pipeline without causing segregation and bleeding is called pumped concrete. They are mostly used in concrete pumps for high rise building.

What makes a concrete mix pumpable?

Factors that Impact Pumpability

“The two main ingredients that make concrete pump are water and cement,” Brown says, and while admixtures can increase pumpability, that will only happen if the supplier doesn't take out too much water and cement.

How do you make concrete pumpable?

Design a mix for pumpable concrete from the following data:

1. The max. size of coarse aggregate = 20 mm.
2. The fine aggregate passes through the 300 micron or 0.3 mm = 19%
3. Slump of concrete = 75 to 100 mm.

What is Slump value for pumpable concrete?

The workability of pumped concrete, in general, has an average slump of between 50 mm and 100 mm. A concrete of less than 50 mm slump is impractical for pumping, and slump above 125 mm should be avoided. In mixtures with a high slump, the aggregate will segregate from the mortar and paste and cause choking.

What is pumped concrete used for?

Purpose & Types Of Projects Concrete Pumps Are Used For

Instead of hauling concrete to the desired location, a pump allows you to place concrete precisely where you need it, no matter the obstacles that are in the way of reaching the area with a truck.

Pumpable Concrete by Mr Ravi Goutam

18 related questions found

How far can you pump ready mix concrete?

A ground line pump can reach over 150 meters, with possible extensions if required. A boom pump can extend up to 72 meters.

How long can you pump concrete?

How far can you pump concrete? Concrete pumps can pump over 300m in horizontal distance. If you are using a ground line pump, the pipes come in 3m sections so pumping that distance would require 100 pipes.

Is a 456 a slump test?

Explanation: According to IS 456-2000, the slump value (in mm) of the concrete used in ordinary RCC work for beams and slabs, etc. is 50 to 100 mm. For concrete work, low workable concrete is preferred.

What is Plum concrete?

Plum concrete is a type of concrete in which medium to large sized stones are used as a filler material. By using large sized filler stones, the cost of concrete is reduced without affecting strength or performance of the structure.

Is code 10262 new?

IS 10262-2019 is a comprehensive code for standard and high-performance concrete mix designs. Guidelines for proportioning raw materials for concrete to achieve the desired strength are provided in this IS Code.

What does pumpable mean?

: capable of being pumped a heavy but still pumpable mud fluid— F. J. Williams.

What is the concrete which has no coarse aggregate?

No fines concrete is a lightweight concrete i.e. density is about 25 to 30% less than the normal concrete due to no fine aggregates, thus self-weight of structure is less. It has better thermal insulating characteristic than normal concrete and thus it is useful for construction of external wall.

What PSI should I use for concrete?

Concrete footings and slabs on grade typically require a concrete of 3,500 to 4,000 psi. Suspended slabs, beams, and girders (as often found in bridges) require 3,500 to 5,000 psi. Traditional concrete walls and columns tend to range from 3,000 to 5,000 psi, while 4,000 to 5,000 psi is needed for pavement.

How much do concrete pumps charge?

Concrete pumps are rented by the hour. Generally speaking, hourly rates will range somewhere between $150 and $200. Prices will vary based on region and the amount of competition in the area.

What is the difference between normal mix and pump mix concrete?

Higher cement content mixes are generally easier to pump. The difference between a typical 3000 PSI mix and a typical 4000 PSI mix is that there is approximately 100 pounds more of cementious material and approximately 85 pounds less sand in the 4000 pound mix.

What is the difference between Plum concrete and PCC?

Plain cement concrete or PCC is the most straightforward form of Concrete. ... While in plum concrete, instead of aggregates, medium and large stones are used as filler material instead of coarse aggregates. So the main difference between PCC and plum Concrete is the boulders insertion in the concrete mix.

Where is Plum concrete used?

Uses of plum concrete:

Plum concrete is used at the water channel beds. It is used mostly in mass concrete works like concrete gravity dams or bridge piers In such cases pieces of rock about 150 mm in size are used as coarse aggregates to mix a plum concrete.

What is M10 concrete?

M10 concrete ratio is 1: 3: 6 in which one part is cement, 3 part is sand and 6 part is aggregate mix with water to gain compressive strength of 10N/mm2 after pouring in desire shape of 28days curing.

Is 456 a note?

Answer: As per IS 456: 2000 [Clause – 23], Effective depth of a beam is the distance between the centroid of the area of tension reinforcement and the maximum compression fiber, excluding the thickness of finishing material not placed monolithically with the member and the thickness of any concrete provided to allow ...

IS 456 is used for?

IS 456-2000 Plain and Reinforced Concrete - Code of Practice is an Indian Standard code of practice for general structural use of plain and reinforced concrete. ... It gives extensive information on the various aspects of concrete.

Is pumped concrete weaker?

It was believed for many years that a pump mix was weaker because it had to be batched with less large aggregate and more sand. ... We have learned over the years that a pump mix will be a better product because it will have a better gradation and maybe even a little more cement and the mixing will be better.

How high can a concrete pump pump concrete?

Just how high can you pump? High rise concrete pumping can probably go further than you imagined. Interestingly, the highest anyone has ever pumped concrete stands at a whopping 606 vertical metres.