0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Procedures in constructing a raft foundation?
Raft foundation is reinforced concrete slab that is supported on a compacted hardcore base that is bigger than the raft. The procedures in construction the foundation involves checking the soil properties, and making the edge of the raft stepped to make a toe so the outer leaf of the wall goes below ground. The slab is reinforced with steel, a radon barrier is added, and a damp proof course is put in.
How many hours to start concrete curing after casting of concrete?
It starts curing the second they put water in it.
What do you put between slabs after laying them?
in between existing concrete and the new concrete you need to place an expansion joint in between the two.
Can you put tongue and groove on to concrete floor?
It's always best to follow the manufacturer's recommendations but in general, solid tongue and groove hardwood flooring should not be installed on concrete. Many of the laminated tongue and groove pre-finished products can be glued down to a concrete slab. Actually (I am simply improving this question I didnt want to delete the first response) I manufacture hardwood floors, If you are installing floors in a basement the question should be if the floor is solid or engineered. Typically solid wood flooring should not be installed in a basement because the sub-terrain environment is more susceptible to humidity. The moisture then causes the floors to warp. Engineered wood, however is recommended for basements and they often come as tongue and groove. See : Related Links
You removed a load bearing wall they had reinforced the post and put in a beam 2 months later you are noticing cracks in the wall and a previous crack had lengthened what are my walls saying?
If I am reading the question correctly, a load bearing wall was removed and replaced with a beam? Clear span, no post in the middle? If cracks are appearing, the beam that was used was not big enough. For any space of 8 feet or more, 2x12 and plywood should be used for the beam or an engineered truss used.
What is the difference between inverted beam and drop beam?
An inverted beam is a beam whose bottom is the same as the slab. A drop beam is a beam that is put under the structural member it supports.
Can you put a floating concrete slab over floor boards?
yes
What is the minimum and maximum allowable percentage of reinforcement steel in concrete?
The amount of steel required in concrete as reinforcement is measured using a formula that calculates the amount of pressure that will be put on the concrete. There are different formulas to identify the minimum and the maximum amount of needed steel, depending on if you are making a beam, slab, or column.
Do all concrete slabs need rebars?
When the slab is loaded and force applied to it, the top of the slab directly under the load will be put in compression. However at the bottom of the slab. the concrete will pull itself in tension. Put the ends of your fingers together than flex your wrist up. You will feel the pressure at the top of your fingertips and you will see a gap open at the bottom. That is what is happening in a slab. Concrete is strong in compression, poor in tension. Rebar, or steel, is the opposite. By combining the two, you develop a product that is superior and complimentary to the strengths and weaknesses of the individual materials.
Why do all concrete slabs need rebar?
When the slab is loaded and force applied to it, the top of the slab directly under the load will be put in compression. However at the bottom of the slab. the concrete will pull itself in tension. Put the ends of your fingers together than flex your wrist up. You will feel the pressure at the top of your fingertips and you will see a gap open at the bottom. That is what is happening in a slab. Concrete is strong in compression, poor in tension. Rebar, or steel, is the opposite. By combining the two, you develop a product that is superior and complimentary to the strengths and weaknesses of the individual materials.
What is neck column in construction?
In construction a column neck is part of the slab foundation. It is put in place to help stabilize the concrete.
Can you setup a pool on a concrete slab?
me personaly no because i put mine on one and it riped on the bottom. so i always put mine on an even surface and on a tarp
Do you need put something for the base of your garden shed?
A cement or concrete slab is good. You could also use bricks or stepping stones.
Can we Put a 6 feet hole in a reinforced concrete slab of 8 inches?
That would depend on where the slab was and what it was doing. How close to a wall is it? What's under the slab? Rock, plumbing? Can you do it? Yes. Should you? Good question. What may happen varies with each slab and circumstance. You may bust it out and find a large rock under it and have to replace it.
Why does the side walk have a small space between each square of concrete?
Because the sidewalk expands when it is warmer out, which can lead to cracking. In order to avoid this, the concrete peeps put intentional cracks in between each slab.
Can you use hardwood or laminate on a concrete slab?
you should use laminate but make sure you also put down a vapor barrier first you could also use hardwood but it would have to be glued instead of nailed tooooo much trouble
How do you encase steel beams in concrete?
When designing composite members, one first needs to consider the properties necessary of the beam, in response to the expected loading. Basically, what will the beam experience? Is it flexural loads, or compressive/axial forces? The loading will greatly influence how the steel moves with the concrete as they are bonded together, and whether or not some bonding grout or other bonding agents are needed. There are many ways you can encase a steel beam in concrete, but let's assume one case: you have a beam that will take mainly flexural loads and that you want the steel beam to be fully encased by the concrete (no steel showing on the outside, in other words). What I would do is install formwork to encase the conecrete on a suitable, hard surface. Then, after having selected the right steel section for the beam, I would drill small holes in the beam flanges in order to attack galvanized anchors/wires. These can be placed anywhere you like, as long as there are not too many of them. These anchors, typically two on each side of the beam's total length, could be attached to cables or chains that are, in turn, attached to hoists or engine-mounts that can lower the beam carefully into the desired position inside the concrete formwork. Make measurements for how low the steel beam should sit in the concrete, and doublecheck your measurements: after this, there's no turning back. Add concrete to the mix and, if you have concrete vibrators, use them to allow for proper concrete mix settlement and extraction of air bubbles from the mix. This will also ensure a good bond between the concrete and the steel. Then, let the concrete set for 5-7 days and store it in a humid room or location (humid, not wet/rainy). Lastly, remove formwork and cut the wires/anchors that are sticking out of the concrete. I would put some appropriate sealant on these locations, as they can be sites for water infiltration in the concrete. Their inner portions cannot be removed at this point. So there you have it, my approach to encasing steel beams in concrete.
