III B.Tech I Semester(R05) Supplementary
Examinations, May/June 2010
CONCRETE TECHNOLOGY
1. (a) Explain process
of Hydration of cement?
(b) Explain in
detail the heat of hydration of Bougue's compounds. [6+10]
2. Explain the
classi¯cation of aggregates based on size and texture of the aggregates. . [16]
3. Explain under
water concreting and slip form concreting with neat diagrams. [16]
4. (a) Explain
the gel/space ratio law.
(b) Explain
graphically the relation between gel/space ratio and compressive strength.
(c) Explain the
relation between strength and gel/space raito. [4+4+8]
5. Explain
various steps involved in evaluation of compressive strength of concrete from
preparation of
sample to
testing. [16]
6. (a) Explain
phenomenon of creep in concrete.
(b) Explain
measurement of creep in creep with loading diagram.
(c) Explain time
dependent deformation in concrete subjected to sustained load.
[6+6+4]
7. (a) What is
the ¯led corrctions to be carried out for concrete mixes? explain?
(b) Explain
about e®ective water/cement ratio.
(c) Explain the
duriability considerations in the design of concrete mixes as per IS 456-2000.
[6+4+6]
8. (a) Explain
salient features of light weight concretes.
(b) Explain factors to
be considered in the ¯bre reinforced concrete.
No comments:
Post a Comment