Which of the following cements is suitable for use in urgent repairs of existing massive concrete structures such as large dams?
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Low Heat Cement is used.
Low heat cement is prepared by maintaining the percentage of tricalcium aluminate below 6% by increasing the proportion of C2S. This makes the concrete to produce low heat of hydration and thus is used in mass concrete construction like gravity dams.
As the low heat of hydration prevents the cracking of concrete due to heat. This cement has increased power against sulfates and is less reactive and initial setting time is greater than OPC.
Hope this will help you.
Low heat cement is prepared by maintaining the percentage of tricalcium aluminate below 6% by increasing the proportion of C2S. This makes the concrete to produce low heat of hydration and thus is used in mass concrete construction like gravity dams.
As the low heat of hydration prevents the cracking of concrete due to heat. This cement has increased power against sulfates and is less reactive and initial setting time is greater than OPC.
Hope this will help you.
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1
"Low heat" cement is one of the hydraulic binding materials and would always be preferred for massive structures such as dams.
It has excellent performances such as high final strength, sulfate corrosion resistance, long lasting properties, good resistance to rupture etc.
Because of its excellent performances for example low hydration heat and anti-seepage, low heat cement is widely applied in building dams, bank of rivers, wall of sea and other hydraulic engineering concrete and marine concrete.
It has excellent performances such as high final strength, sulfate corrosion resistance, long lasting properties, good resistance to rupture etc.
Because of its excellent performances for example low hydration heat and anti-seepage, low heat cement is widely applied in building dams, bank of rivers, wall of sea and other hydraulic engineering concrete and marine concrete.
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