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How does the foam reduce heat loss?
Foam contains pockets of trapped air which prevents conduction.
Does high temperature affect air entrainment on concrete?
Of course it does. One thing can be said about air entrainment everything affects it in concrete. High temperature can lower the effectiveness of air entrainment products. Typically requiring a higher dosage of air entrainment to get the desired air content.
What st4 and pav2 concrete made of?
st4 is just a standard type concrete probably comparable to c40 structural concrete, pav 2 is the equivalent to c35 concrete with air bubbles, mostly used in paving works
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.
What is the purpose of hvac system evacuation?
evacuation removes and non condensables from your hvac system such as air or moisture
Why vibrate concrete?
It removes air pockets naturally created in a poor which keeps out moister and improves the strength.
What consolidating concrete?
Newly placed concrete will often have air pockets in it. Rodding it or vibrating it will cause the concrete to settle, or consolidate, better.
Why soil deforms under stresses?
Soil is not a solid like concrete, it has air pockets and some soils have more. By stressing or compressing the soil, you are removing the air and are bringing the particles closer together.
What do you mean by honeycomb in concrete?
Honeycomb is a defect in the hardened cement concrete consisting of many air pockets or voids due to which concrete deteriorates by entrapment of moisture that causes corrosion of reinforcement bars resulting in failure of structural members over a period of time if not rectified at the earliest.
Do woodpeckers have air pockets in their brains?
No woodpeckers have air pockets in there noses/snouts.... hope this helped! -Max
How does an egg decompose?
eggs have little air pockets that make it stay good when the air pockets loose air it starts to rot
Can you get air pockets in swimming pool water?
yes because when the water goes into your pockets it fills up with water so yes you can get air pockets in swimming pool water...
Why is snow a better insulator than ice?
Snow has many tiny air pockets, and air pockets are great insulators.
How do you know if an egg has air in it?
All eggs have air pockets in them.
Can a fresh poured concrete retaining wall with air pockets 3 inches deep 5 feet long be salvaged?
Consult a structural engineer. The height, width, depth, and load of the wall, along with the location of the pockets, will need to be provided to determine its suitability in providing the intended utility.
Does air conditioning add humidity to the air?
No it removes it.
Why is styrofoam an insulator?
Styrofoam has pockets of air. These pockets make it harder for heat to travel through.
