With the use of pozzolana, (a) Tensile strength of concrete increases (b) Heat of hydration of concrete is reduced (c) Permeability of concrete increase (d) Leaching of concrete is reduced Answer:ย (c)
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(a) Hydraulic lime (b) Hydrated lime (c) Fat lime (d) Quick lime Answer:ย (a)
When water is added to fat lime (a) Volume of lime increases (b) Hissing sound is created (c) Lime turns into powder (d) Lime become hydraulic Answer:ย (d)
(a) Lime becomes suitable for white washing (b) Lime becomes in soluble in water (c) Purity of lime increases (d) Lime cannot set under water Answer:ย (b)
(a) Improves workability and reduces permeability (b) Reduces both workability and permeability (c) Improves both workability and permeability (d) Reduces workability and improves permeability Answer: (a)
(a) Natural pozzolana. (b) Articifial pozzolana. Answer:ย (b)
(a) Natural pozzolana. (b) Articifial pozzolana. Answer:ย (a)