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Question
Explain the reason why is sulphate-resisting cement not used in marine concrete?
Answer Major components of Portland cement are tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. In sulphate-resisting cement, it contains a low quantity of tricalcium aluminate in order to keep away from sulphate attack.Or else, tricalcium aluminate would react with sulphates to form calcium sulphoaluminate and gypsum that source expansion and crack concrete structure. Still, for marine concrete sulphate-resisting cement must not be used since tricalcium aluminate has high affinity for chloride ions. This is base on possible reaction of chloride ions and tricalcium aluminate to form calcium chloroaluminate hydrate and reduction of that may increase rate of chloride attack to the concrete marine structure and result in earlier corrosion of steel reinforcement in marine arrangements.
Q. Design features of major bridge? Important design features of major bridge projects should be tested and finalised by hydraulic model studies. Bridge waterway, shape, length
what are defects in timber occur due to natural causes?
Explain the Dynamic or Vibration Tests Tests of this type, also known as sonic integrity test, involve sub- jecting the element to a single impulsive blow or cyclic load, and
Hello I have an assignment due feb 1st at 3 pm. I wanted to know if it was possible that it gets solved
Need this assignment due in 10 hours
Question What are the key disparities between epoxy grout cement grout and cement mortar ? Answer Epoxy grout contains of epoxy resin, epoxy hardener and sand or aggregates.
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maintenance of water bound macadum road
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