Short notes on :
FIBER REINFORCED CONCRETE:- It is a composite material essentially consisting of conventional concrete reinforced by the random dispersal of short, discrete and discontinuous fine fibers.
Great advantage of using this type of concrete is that it restricts the development of cracks.
POLYMER CONCRETE:- In this type of concrete the polymer replaces the cement- water matrix and the polymer binds the aggregate to give a strong composite mix. Done by three process: thermal catalytic reaction, catalyst promoter reaction and radiation. Polymer concrete have good potential as repair material and for overlays.
Advantages:-
Disadvantages:-
Product hard to manipulate with conventional tools such as drills and presses due to its density.
Short notes on :
What is an air entraining agents? Give some examples. What is efflorescence in concrete structure?
How standard consistency test is done on cement? Explain the procedure briefly.
What are the initial and final setting times of cement ? How are they experimentally determined ?
How does a gravity dam work?
Write notes on Mixing and Mixer machines of concrete.
What is flange beam?
Describe different types of canal lining materials.
What is the minimum specing of strriup according IS456:2000?
Write a short note on Furrow Irrigation.
Explain the purpose of a weir in a diversion headwork.
