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Temperatures below boiling point - commonly about 700C, are used to quicken the curing of mass-produced items such as concrete blocks and pipes. This can shorten the curing from a few days to a few hours.
However, in large concrete pours, such as would be found in a mass concrete dam, the heat generated by the self curing process could induce thermal expansion stresses, and this is countered by having cooling pipes installed in the dam body.
Temperatures much elevated, could boil away the water of crystallization from the various crystal processes upon which the concrete depends for its strength. Effectively, you would be 'calcining' the crystals once again!
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What is DELTA T?
delta T or ▲T is the change of temperature. ▲T= (Final Temperature-Initial Temperature)
According to the Gibbs free energy equation G H - T S when could a high temperature make a reaction that was nonspontaneous at low temperature spontaneous?
when h and s are both positive
What is ultra high temperature?
it is the process where milk is heat at the very high temperature
Why should an ideal fuel should have moderate ignition temperature?
Because if the ignition temperature is high then the calorific value declines and if the temperature is very low than the fuel burns very slowly releasing insufficient amount of t=heat and light for any purpose
A gas that burns at a very high temperature?
which gas burns at a very high temperature
High temperature concrete?
80
What temperature does concrete melt at?
Depending on the composite of the concrete material, it can melt at different temperatures. When concrete reaches a high enough temperature such as more than 1000 degrees Celsius, it can crumble like sugar.
Is concrete combustible?
Concrete is not combustible, although different types will be damamged by varying amounts of heat. If the temperature is high enough.
What has the author L T Phan written?
L. T. Phan has written: 'Fire performance of high strength concrete'
What has the author Long T Phan written?
Long T. Phan has written: 'Experimental plan for testing the mechanical properties of high-strength concrete at elevated temperatures' -- subject(s): High strength concrete, Mechanical properties, Testing, Heating
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 has the author T D Robson written?
T. D Robson has written: 'High-alumina cements and concretes' -- subject(s): Concrete, Cement
Can you use high temp concrete in place of a gasket on a wood burning stove t?
Usually, no. Gaskets have some "give" as temperatures change. While concrete is strong, it is brittle.
Applications where tensile strength is the primary factor in material selection?
-Re-inforced cement concrete -High temperature services
If the temperature is high is the pressure high?
The original answer stated "No, if the temperature is high the pressure is low. And visa-versa." This is flat wrong. The pressure-temperature law states that the pressure of a gas of fixed mass and fixed volume is directly proportional to the gasses absolute temperature. This can be stated as P/T=k where: P = pressure T = Temperature k = a constant. High Temperature Protection Sleeve - Protects hydraulic hoses, cables and wires. Yancheng Hengsheng Insulation Co.,Ltd
What is DELTA T?
delta T or ▲T is the change of temperature. ▲T= (Final Temperature-Initial Temperature)
What is reinforce concrete t-beam?
It is a monolythic concrete beam consisting of a web and a flange to form the shape of a"T" .
