Table of Contents
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.
What are the advantages of pumping concrete?
10 benefits of concrete pumping: Concrete pumping is a faster and easier method to complete a project. Concrete pumping can reduce labour costs. It reduces site congestion as there are less construction workers. You can get concrete to high rising and far reaching places.
How much more does it cost to pump concrete?
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. Most rental companies will require a minimum rental time.
What is the main problem in concrete pumping?
The main problems associated with pumping are the effect of segregation and bleeding. To rectify these adverse effects, the proportion of cement is increased to enhance the cohesion in order to reduce segregation and bleeding.
How far can Ready Mix concrete be pumped?
How far can you pump concrete? A line pump can cover distances of around 150 metres while boom pumps can reach approximately half this distance.
When should you use a concrete pump?
Purpose & Types Of Projects Concrete Pumps Are Used For Small line pumps transport smaller volumes of concrete, so they are ideal for smaller concrete construction projects, such as pools, sidewalks, ground slabs, low-rise construction, and slabs for single-family homes.
Why is vibration important in fresh concrete?
Why is it Important? Vibrating concrete is critical because by removing air pockets & packing the aggregate particles together, it increases the density and strength of the concrete. Tightly packed particles will result in a stronger, more durable concrete structure.
Is it cheaper to pour your own concrete?
One of the least expensive ways to get concrete is to mix your own. You can buy bags of the mix from a home improvement store. Typically, you only have to add water for it to be ready to pour. Otherwise, you risk getting a weaker concrete once it cures, which could lead to cracks or crumbles within a couple of years.
Why is concrete so expensive right now?
As more areas become industrialized—and as there grows a greater need for durable building materials to withstand severe weather and long-term wear—the demand for concrete has significantly increased. This alone has affected the price of concrete over the years.
How much does a 40×60 concrete slab cost?
How much does a 40×60 concrete slab cost? It would be about $8,500 to $12,000 for a 40×60 foot concrete slab, 6 inches thick. That’s based on national averages of around $5 per square foot for a fully engineered, finished concrete slab, including labor and materials.
Who owns Brundage Bone concrete pumping?
Concrete Pumping Holdings.
What aggregate is light weight concrete?
Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density. Structural lightweight concrete has an in-place density of 90 to 115 lb/ft³, whereas the density of regular weight concrete ranges from 140 to 150 lb/ft³.
What is concrete line pump?
Concrete Line Pump The line pump, also known as a ‘trailer pump’ or a ‘stationary pump’ and is an incredibly versatile concreting method designed for flexible pouring. While line pumps are still particularly efficient, they feature a slower pump rate than boom pumps, making them more ideal for smaller applications.
Can you pump concrete through a house?
The concrete pump pipeline can easily be passed through the front door and the rest of the house, and out into the garden – with little mess and no fuss. This is the same for other hard-to-reach areas, such as basements and sites with narrow entrances and down alleyways.
How long is a concrete pump?
A ground line pump can reach over 150 meters, with possible extensions if required. A boom pump can extend up to 72 meters.
Do concrete trucks have pumps?
When concrete is required, a mixing truck first mixes concrete within its rotating drum. From there, the concrete pump sucks the liquid concrete out of the hopper, through a valve system, and into the area where it needs to be laid down, sometimes with the use of auxiliary hoses.
What type of pump is best for concrete?
A boom or truck mounted concrete pump is best suitable for the construction of huge road and highway projects. For concrete pouring at several altitudes, where there is a limited area for the concrete pouring, a boom concrete pump is the best choice.
Can a grout pump pump concrete?
Grout pumps can be used to fill small voids and door jams and they are available in either manual, electric, gas, hydraulic and air powered. Concrete pumps are strong enough to lift up many stories and even lift slabs of concrete. Browse our equipment and grout pumps for sale below, including popular Chemgrout pumps.
What happens if you don’t vibrate concrete?
What are the effects of poor vibration techniques? Poor vibrations will result in voids at the surface of the concrete – normally called honeycombing. This is caused because the entrapped air was not removed, the concrete did not settle, and the voids were not filled with the paste from the concrete mixture.
Should all concrete be vibrated?
Yes, all concrete should be consolidated. Contractors tend to use mechanical vibrators such as spud vibrators, vibratory screeds, and form vibrators. Contractors tend to use spud vibrators for formed structures such as foundation walls, footings, elevated slabs, etc.
Why is it advisable to pour concrete at night rather than day time?
In dry climates the summer air temperature usually drops at night, and as air temperature approaches the concrete temperature, the rate of evaporation actually increases. In many locations scheduling a night pour can take advantage of calm wind conditions, since lower wind speed usually means lower evaporation.
What is poor man’s concrete?
We have a few companies locally that offer “poor man’s concrete”. I’m not sure exactly what it is, but I’ve seen it in driveways and such. It’s a white powdery material they dump and flatten out and when it gets wet, it’s supposed to harden like cement.
Do you need gravel under concrete?
Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. Gravel is especially important in clay soil because it doesn’t drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains.
What is a cheaper alternative to concrete?
What is a cheaper alternative to concrete? For concrete floor alternatives, you will get a cheaper floor if you use brick, gravel, decomposed granite or asphalt, earthen floor, and even insulation foam.
