Code No: 09A50101 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY, HYDERABAD B. Tech III Year I Semester Examinations, May/June – 2013 Concrete Technology (Civil Engineering) Time: 3 hours Max. Marks: 75 Answer any five questions All questions carry equal marks - - - 1.a) Discuss briefly the major compounds of portland cement that contribute to the strength development during first few weeks of hydration. b) Discuss about the structure of hydrated cement. [15] 2.a) Briefly explain about the mineral and chemical admixtures that are being used in concrete. b) What type of admixtures are required for concreting in hot weather and cold weather? [15] 3.a) Discuss in detail about grading of aggregates? What do you understand by gap graded aggregate? b) What are the effects of shape and texture of aggregates on the strength and workability of concrete? [15] 4.a) What is ‘workability’ of concrete? Discuss about the effect of ‘Time’ and ‘Temperature’ on workability of concrete. b) Briefly explain any two methods of determining the workability of fresh concrete. [15] 5.a) Discuss the influence of the rate of load application on the strength of hardened concrete. b) Briefly discuss about the relation between ‘tensile’ and ‘compressive’ strength of concrete. [15] 6.a) Briefly explain the test procedure for ‘Flexural strength’ of concrete. b) Briefly explain the non-destructive testing of concrete. c) What are the factors that affect creep of concrete? [15] 7. Design M30 grade concrete mix as per IS 10262:2009 for the following data. Cement = OPC 53 grade; Specific gravity of cement = 3.01 Coarse aggregate = 20 mm crushed granite; Specific gravity of coarse aggregate = 2.78 Fine aggregate = River sand confirming to zone II; Specific gravity of fine aggregate = 2.77 Method of concreting = Pumping Quality control = Good; Slump required = 120 mm; Environmental exposure condition = Moderate exposure condition. Use of superplasticiser having specific gravity of 1.2 is allowed. Minimum cement content from durability consideration = 320 kg/m 3 . Maximum water- cement ratio = 0.45. Assume any other data suitably. [15] R09 e? bility’ of concrete? n workability of concr ny two methods of determ ce of the rate of ing of aggreg ate and texture of a Discuss te? bility’ of concrete? n workability of concr n eterm ce of the rate of ing of aggreg ate a a Discuss y’ of con orkability of c wo methods o he rat exture o ] con ct c rs th e th W onc eng lex dure tes expl B ] . co . co . h c lity he w erm ods w y tw w expl B w d ‘Tim effe bou Dis isc Dis onc o lity ‘w W D ] cret lity w ate? ed g d er a hot reti d fo e r mixt pe W n ing that dmi hem nera out expl B ] ydra eek cem rs f hy ent stru dev abo st D fi e m bri D e but tha d c of f omp ark y eq tion Al Ma s e qu er a : 3 h 5 chn eer ncr ivi RA Y, H e – IVE M CA mi HNO est RU ea LAL Tec WA I 1 N R 0 www.jntuworld.com || www.android.jntuworld.com || www.jwjobs.net || www.android.jwjobs.net www.jntuworld.com || www.jwjobs.net
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Code No: 09A50101
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY, HYDERABAD
B. Tech III Year I Semester Examinations, May/June – 2013
Concrete Technology
(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any five questions
All questions carry equal marks
- - -
1.a) Discuss briefly the major compounds of portland cement that contribute to the
strength development during first few weeks of hydration.
b) Discuss about the structure of hydrated cement. [15]
2.a) Briefly explain about the mineral and chemical admixtures that are being used in
concrete.
b) What type of admixtures are required for concreting in hot weather and cold
weather? [15]
3.a) Discuss in detail about grading of aggregates? What do you understand by
gap graded aggregate?
b) What are the effects of shape and texture of aggregates on the strength and
workability of concrete? [15]
4.a) What is ‘workability’ of concrete? Discuss about the effect of ‘Time’ and
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of determining the workability of fresh concrete.
[15]
5.a) Discuss the influence of the rate of load application on the strength of hardened
concrete.
b) Briefly discuss about the relation between ‘tensile’ and ‘compressive’ strength of
concrete. [15]
6.a) Briefly explain the test procedure for ‘Flexural strength’ of concrete.
b) Briefly explain the non-destructive testing of concrete.
c) What are the factors that affect creep of concrete? [15]
7. Design M30 grade concrete mix as per IS 10262:2009 for the following data.
Cement = OPC 53 grade; Specific gravity of cement = 3.01
Coarse aggregate = 20 mm crushed granite;
Specific gravity of coarse aggregate = 2.78
Fine aggregate = River sand confirming to zone II;
Specific gravity of fine aggregate = 2.77
Method of concreting = Pumping
Quality control = Good; Slump required = 120 mm;
Environmental exposure condition = Moderate exposure condition.
Use of superplasticiser having specific gravity of 1.2 is allowed. Minimum
cement content from durability consideration = 320 kg/m3. Maximum water-
cement ratio = 0.45. Assume any other data suitably. [15]
R09
workability of concrete? [15]
4.a) What is ‘workability’ of concrete? Discuss
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of determining the workability of fresh concrete.
[15]
5.a) Discuss the influence of the rate of load applicati
weather? [15]
3.a) Discuss in detail about grading of aggregates? What do you understand by
b) What are the effects of shape and texture of aggregates on the strength and
workability of concrete? [15]
4.a) What is ‘workability’ of concrete? Discuss
workability of concrete? [15]
4.a) What is ‘workability’ of concrete? Discuss
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of determining the workability of fresh concrete.
[15]
5.a) Discuss the influence of the rate of load applicati
weather? [15]
3.a) Discuss in detail about grading of aggregates? What do you understand by
b) What are the effects of shape and texture of aggregates on the strength and
workability of concrete? [15]
4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of
[15]
5.a) Discuss the influence of the rate of load applicati
texture of aggregates on the strength and
workability of concrete? [15]
creep of concrete? [15] creep of concrete? [15] creep of concrete? [15] creep of concrete? [15] creep of concrete? [15] c) What are the factors that affect creep of concrete? [15] c) What are the factors that affect c) What are the factors that affect c) What are the factors that affect c) What are the factors that affect
for ‘Flexural strength’ of concrete. for ‘Flexural strength’ of concrete. for ‘Flexural strength’ of concrete. 6.a) Briefly explain the test procedure 6.a) Briefly explain the test procedure 6.a) Briefly explain the test procedure 6.a) Briefly explain the test procedure
concrete. [15] concrete. [15] concrete. [15] concrete. [15] concrete. [15] concrete. [15] concrete. [15] concrete. [15] concrete. [15]
concrete.concrete.
determining the workability of fresh concrete. determining the workability of fresh concrete. determining the workability of fresh concrete. determining the workability of fresh concrete.
‘Temperature’ on workability of concrete.
determining the workability of fresh concrete.
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of
‘Temperature’ on workability of concrete.
b) Briefly explain any two methods of b) Briefly explain any two methods of
about the effect of ‘Time’ and about the effect of ‘Time’ and about the effect of ‘Time’ and about the effect of ‘Time’ and 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss 4.a) What is ‘workability’ of concrete? Discuss
workability of concrete? [15]
texture of aggregates on the strength and
workability of concrete? [15]
texture of aggregates on the strength and
workability of concrete? [15]
texture of aggregates on the strength and
workability of concrete? [15] workability of concrete? [15]
texture of aggregates on the strength and
workability of concrete? [15]
texture of aggregates on the strength and
workability of concrete? [15] workability of concrete? [15] workability of concrete? [15]
b) What are the effects of shape and
workability of concrete? [15]
b) What are the effects of shape and
workability of concrete? [15]
b) What are the effects of shape and
workability of concrete? [15]
b) What are the effects of shape and
workability of concrete? [15]
ates? What do you understand by ates? What do you understand by ates? What do you understand by ates? What do you understand by 3.a) Discuss in detail about grading of aggreg3.a) Discuss in detail about grading of aggreg3.a) Discuss in detail about grading of aggreg3.a) Discuss in detail about grading of aggreg
gap graded aggregate?
3.a) Discuss in detail about grading of aggreg
gap graded aggregate?
3.a) Discuss in detail about grading of aggreg
gap graded aggregate?
weather? [15] weather? [15] weather? [15] weather? [15] weather? [15] weather? [15] weather? [15] weather? [15] weather? [15]
es are required for concreting in hot weather and cold es are required for concreting in hot weather and cold es are required for concreting in hot weather and cold es are required for concreting in hot weather and cold es are required for concreting in hot weather and cold es are required for concreting in hot weather and cold b) What type of admixturb) What type of admixturb) What type of admixtur
ical admixtures that are being used in ical admixtures that are being used in ical admixtures that are being used in ical admixtures that are being used in 2.a) Briefly explain about the mineral and chem2.a) Briefly explain about the mineral and chem2.a) Briefly explain about the mineral and chem2.a) Briefly explain about the mineral and chem2.a) Briefly explain about the mineral and chem
) Discuss about the structure of hydrated cement. [15] ) Discuss about the structure of hydrated cement. [15] ) Discuss about the structure of hydrated cement. [15]
of hydration.
) Discuss about the structure of hydrated cement. [15]
rst few weeks
) Discuss about the structure of hydrated cement. [15]
rst few weeks
) Discuss about the structure of hydrated cement. [15]
strength development during fi
) Discuss about the structure of hydrated cement. [15]
strength development during fi
) Discuss about the structure of hydrated cement. [15]
strength development during fi
b) Discuss about the structure of hydrated cement. [15]
strength development during fi
1.a) Discuss briefly the major compounds of1.a) Discuss briefly the major compounds of1.a) Discuss briefly the major compounds of portland cement that contribute to the portland cement that contribute to the portland cement that contribute to the portland cement that contribute to the 1.a) Discuss briefly the major compounds of portland cement that contribute to the 1.a) Discuss briefly the major compounds of1.a) Discuss briefly the major compounds of
All questions carry equal marks All questions carry equal marks All questions carry equal marks All questions carry equal marks
Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75
Answer any five questions
Time: 3 hours Max. Marks: 75
Answer any five questions
Time: 3 hours Max. Marks: 75
Answer any five questions
Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75
Concrete Technology
(Civil Engineering)
Concrete Technology
(Civil Engineering)
CAL UNIVERSITY, HYDERABAD CAL UNIVERSITY, HYDERABAD
B. Tech III Year I Semester Examinations, May/June – 2013
CAL UNIVERSITY, HYDERABAD
B. Tech III Year I Semester Examinations, May/June – 2013
CAL UNIVERSITY, HYDERABAD
B. Tech III Year I Semester Examinations, May/June – 2013
JAWAHARLAL NEHRU TECHNOLOGI
B. Tech III Year I Semester Examinations, May/June – 2013
JAWAHARLAL NEHRU TECHNOLOGI
B. Tech III Year I Semester Examinations, May/June – 2013
JAWAHARLAL NEHRU TECHNOLOGI
B. Tech III Year I Semester Examinations, May/June – 2013
JAWAHARLAL NEHRU TECHNOLOGIJAWAHARLAL NEHRU TECHNOLOGI
No: 09A50101 Code No: 09A50101 R09
texture of aggregates on the strength and
3.a) Discuss in detail about grading of aggreg
weather? [15]
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8.a) What is meant by ‘self-compacting concrete’? Briefly discuss the various tests to
be conducted for the self-compacting concrete.
b) What are the advantages of using fibre-reinforced concrete? Briefly explain how
the concrete attains this property. [15]
********
rty. [15] rty. [15] rty. [15] rty. [15] rty. [15] the concrete attains this propethe concrete attains this propethe concrete attains this property. [15]
e-reinforced concrete? Briefly explain how e-reinforced concrete? Briefly explain how e-reinforced concrete? Briefly explain how e-reinforced concrete? Briefly explain how
be conducted for the self-compacting concrete.
e-reinforced concrete? Briefly explain how
be conducted for the self-compacting concrete.
b) What are the advantages of using fibr
be conducted for the self-compacting concrete.
b) What are the advantages of using fibr
be conducted for the self-compacting concrete.
b) What are the advantages of using fibr
be conducted for the self-compacting concrete.
b) What are the advantages of using fibr
8.a) What is meant by ‘self-compacting concre8.a) What is meant by ‘self-compacting concre8.a) What is meant by ‘self-compacting concre the various tests to te’? Briefly discuss te’? Briefly discuss 8.a) What is meant by ‘self-compacting concre8.a) What is meant by ‘self-compacting concre
the concrete attains this prope
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