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What else can I help you with?
State the anti-variation materials are sometimes placed between connecting parts in order to reduce vibration?
paita fhud ansere nani oe...
What is the difference between shear stress and bearing stress?
Sear stress are forces applied in opposition, producing a shearing or tearing force. Bearing stress is a load placed in one direction, such as the weight of a building bearing on the foundation.
How ESV in turbine works?
The Emergency Stop Valve (ESV) in a turbine is placed between the steam engine and the turbine structure. It is designed to rapidly close and prevent steam from reaching the turbine in case of emergency.
How is radiation used to check welds?
A source of gamma radiation is placed on one side of the weld, and a photographic film is placed on the other. Bubbles and weak points will appear on the film.
The body trek begins as the micro-robot is placed on the nail plate of the thumbnail a?
Cuticle
Metal joints are placed between concrete sections of long?
beam
What are Metal joints are placed between concrete sections?
Metal joints, such as expansion joints or control joints, are often placed between concrete sections to allow for movement and prevent cracking. These joints help to accommodate the expansion and contraction of the concrete due to temperature changes, thereby reducing the likelihood of cracking and maintaining the structural integrity of the concrete pavement or structure.
What type of movement joints are required in concrete masonry walls?
Isolation joints are required in concrete masonry walls to allow for independent movement between sections of the wall. These joints accommodate changes due to temperature, moisture, or structural settlement, preventing cracking and other damage. Properly placed isolation joints help maintain the structural integrity and longevity of the wall.
Why are pieces of rubber placed between slabs of concrete?
Concrete expands and contracts depending on the temperature. The strips are called expansion joints.
Why do you sometime find rubber strips between the section of a concrete bridge?
Rubber strips, often referred to as expansion joints, are placed between sections of a concrete bridge to accommodate movement caused by temperature changes, settling, and vibrations. These joints allow for the expansion and contraction of the concrete without causing stress or cracking in the structure. They also help prevent water and debris from entering the bridge's underlying components, which can lead to deterioration over time. Overall, they play a crucial role in maintaining the integrity and longevity of the bridge.
Can concrete shrink after it is cured?
Once the moisture is out of the concrete and it is cured it should not shrink - it is however in a state of stress so make sure control joints are added to any large concrete areas that are poured and placed.
Why is important to place gaps at regular intervals in sidewalks?
To prevent sidewalks from cracking in random spots and breaking apart, builders make lines in sidewalks. The technical term for sidewalk lines is contraction joints. Contraction joints are placed in fresh concrete before the concrete dries and has a chance to create its own joints, which we call cracks.
When a concrete road is put down black asphalt stripes are placed between sections of the concrete to?
Prevent or reduce cracking of the concrete due to thermal expansion. Most materials expand when heated and contract when cooled. The strips are usually a fibrous material that allows the concrete expand and contract without breaking. Without those strips, random and irregular cracks would occur.
Why gaps are left in concrete slaps?
Gaps in concrete slabs, also known as control joints, are intentionally placed to control cracking caused by shrinkage as the concrete cures. These joints help to direct where cracks may occur, allowing them to happen in a controlled manner along the joint lines rather than randomly across the slab. Without control joints, cracks may still form but they would be more unsightly and difficult to predict.
Is black asphalt strips placed between section of concrete to allow for the expansion and contraction of the concrete?
Partially. The asphalt strips are placed between sections of concrete to make up for the expansion and contraction of the earth around the concrete. Because with the changing seasons (mostly summer and winter because their temperatures vary so much from other seasons) the earth "dirt" expands and contracts; such is the same as when you put a glass of water into the freezer, it will look like there is less ice afterward than the amount of water that you put into it because the atoms contract together to make a solid. Also the same as when it is cold out, you can move your body less than you can when it's warmer out.
How honeycombing in concrete is formed?
Honeycombing in concrete can be formed due to the improper consolidation of concrete. If Concrete is not consolidate when it is placed inside of form work air voids could remain between the forms and the concrete creating honeycombing. Proper consolidation can be achieved by the use of vibrators.
Is cracking at joints acceptable after new pour of concrete?
Cracking at expansion joints is always acceptable and is the reason for the joint itself. There are two kinds of cracks, pretty ones and ugly ones! Ugly ones are random cracks where the concrete relieves itself from drying shrinkage in a random location within the slab of concrete which is normally not appealing to the eye. Expansion joints are placed at predetermined intervals within the slab where random cracks are weakened planes in locations where cracking is predicted prior to fresh concrete placement. All concrete shrinks when it dries, the larger the slab, the greater the overall shrinkage. When the tensile strength of drying shrinkage exceeds the tensile strength of the concrete, cracking will occur. Lets just hopes it cracks in a spot where we planned it instead of a location where didn't. By the way, joints should be cut at least 25% of the depth of the slab.
