Why I section of beam are generally used?

vijay Kumar

• Jan 31st, 2014

It provides large stiffness in lateral direction and more MOI with same section.

panneerlakshmanan

 Profile Answers by panneerlakshmanan Questions by panneerlakshmanan

• May 9th, 2010

I section has lowest shape factor

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What is the composition of flyash bricks, by weight, by volume?

shahanth

 Profile Answers by shahanth Questions by shahanth

• Feb 27th, 2013

Fly ash (70%) Lime (10%) Gypsum (5%) and Sand (15%) For fly ash brick.

Fly ash 50%-60%, sand/stone dust/quarry dust 30%-40%, O.P.C 8%-10%

ADITYA BHAT

• Nov 29th, 2012

3%-4% can beused

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What is the difference between Hume pipes, spun pipes, NP 2, NP3, NP4, pipes?Test requirements of above pipes.

Aamir Patni

• May 25th, 2016

Basic Difference between NP2, NP3 & NP 4 is due to quality of product. The thickness is not main difference. Generally thickness of pipes: NP4 > NP3 > NP2 NP 2 is used for normal flow and condit...

Kamlesh

• Mar 29th, 2016

Np3 150mm weight

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If the concrete cube was casted on 20/11/10, then the 7th day test will be carried out on either on 26/11/10 or 27/11/10

wkordy

 Profile Answers by wkordy Questions by wkordy

• Dec 18th, 2010

7 Days crushing test shall be on 27-11-2010

maharaj singh

 Profile Answers by maharaj singh Questions by maharaj singh

• Nov 28th, 2010

After 168 hours of which time the sample taken

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What is the reason of cracks developing between the joints of concrete beams and block walls

Vikas Bamal

• Aug 31st, 2011

Cracks appear in the wall due to one or more of the following reasons:

No good material used in beam construction.
Vibrator not used in concreting.
Blocks are not laid in Header Strecher method.
Vertical joints in blocks are in one layer.
Joints are not used in blocks wall.

ashokkumar

• Aug 6th, 2011

Due to the different cooefficiency of thermal expansion of concrete & Block/Brick, Upon the completion of every building there will be a settlement in foundation which also may cause cracks in joints.

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shahanth

 Profile Answers by shahanth Questions by shahanth

• Mar 11th, 2013

Open graded aggregate contains only a small percentage of aggregate particles in the small range. This results in more air voids because there are not enough small particles to fill in the voids betwe...

suji

 Profile Answers by suji Questions by suji

• Mar 7th, 2012

Open graded aggregate is the base of single-sized, angular pieces it is washed to remove fines, stone size can vary between 3 in to ? in. It has Low-settling compaction, void spaces may constitute up...

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What is the full meaning of 1 in 40, concerning slope of a rc roof

biswajit das

• Mar 6th, 2013

Slope 1 in 40 is the gradient of slope given, if the length is 40 meter then the vertical length will be 1metre. for ex. for 200 meter slope will be 200/40.

Ganesh k verma

• Sep 15th, 2011

Reinforcement /cement concrete roof means Roof casting after complete the reinforcement on shutring, in this mixture Called R C C roof Casting. Reinforcement work is so important for preparing the casting.

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what is the minimum size of DMC piles?

nantha

• Oct 20th, 2011

DMC-Direct mud circulation Method

S N L Reddy

• Sep 20th, 2011

Minimum size of DMC piles is 50 cm

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prakash

• Mar 14th, 2012

Mark on column from benchmark to known level , then minus the depth of beam thickness of suttering, to clear total height of slab

Rohit

• Feb 27th, 2012

Mark a level on a column from benchmark then find out the depth of beam @ column then minus the slab thickness from it then add a clear floor height minus the level u marked on the column

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what is the min and max strength of M30(target strength is 38N/sq.mm)

Krishna Bahadur Kunwar

• Dec 7th, 2012

7 day strength will be 65% and 28 day strength will be 85-90%

shafi Uzzama

• Dec 31st, 2011

7 days strength will be 62% i.e. this should be more than 450 KN
& 28 days strength will be 100% i.e. it should be more than 700 KN

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What is the effect of doing RCC raft foundation without PCC(If provide some protection like polythene sheets tp prevent direct contact of RCC with soil?

Deepak SUTHAR

• Sep 11th, 2013

Formula of pile foundation in cu mts.

Somashekhar Morabad (Structural Engineer)

• May 5th, 2012

It provides a solid base for the raft foundation n protect steel and concrete from corrosion. More over it help to maintain w/c ratio of raft concrete while it is casted green.

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what is the Difference between DEFLECTION AND DEFORMATION ? Explain

mohammed najeeb ansari

• Jun 6th, 2013

Deflection is temporary displacement due to moment action and deformation is a permanent displacement due to load action.

dipak

• Jun 5th, 2013

Deflection is a temporary phenomenon of displacement and deformation is a permanent displacement or physically irreversible phenomenon.

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Please give me expectable interview questions on build construction.[only questions]

DEEPAK PRAKASH

• Jul 30th, 2015

1. Percentage of steel can be taken as 1% but it can vary upto 4% for different items 2. 1 Way slab requires support at the two opposite sides, but in case of 2 Way slab it requires on all the 4 sid...

farman ali

 Profile Answers by farman ali Questions by farman ali

• Oct 22nd, 2013

1. What percentage of steel taken in residencial building.
2. How many no of  minimum wall required for one way sab and two way slab.
3. What do you mean by workability .how to increase the workability.

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Generally rate excavation with blasting is more than that with chiseling...say yes or no and give reason

Prakash

• Jun 16th, 2014

Yes. but generally in city area or near habitate places blasting prohibited.

There are many restriction on store & procurement of gelatine.

That's why people consider chisling method

raghavendra

• Apr 5th, 2014

No

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Why for design of foundations only service load combinations are used? Why not design?

naresh sonwane

• Mar 27th, 2016

Actually we use the safe bearing capacity which is found by dividing the ultimate bearing capacity by FOS while calculating the area therefore we do not factor the load.

bilal chughtai

• Nov 13th, 2014

During the design of foundations, we include service loads, because foundations are major part of structure load bearing element, so the magnitude of service load keep on changing with time, so that's why we include service load.

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What kind of pump is commonly used in concrete pumping?

vijay kumar

• Feb 13th, 2018

Concrete Boom Pump

vipin os

• Dec 29th, 2014

Piston pump

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Dear Sir/Mrs ,

I want to Know the Concrete Grades and their ratios. Please send to me in detail .


With Thanks

srinivasareddy

• Sep 17th, 2016

M5 = 1 :5 :10
M7.5 = 1 :4 :8
M10 =1 :3 :6
M15 =1 :2 :4
M20 =1 :1.5 :3
M25 =1 :1 :2

ankit

• Mar 16th, 2015

GRADE = CEMENT : SAND : AGGREGATE
M5 = 1 :5 :10
M7.5 = 1 :4 :8
M10 =1 :3 :6
M15 =1 :2 :4
M20 =1 :1.5 :3
M25 =1 :1 :2

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NASEEM ALAM

• Oct 13th, 2016

When staff is of 4m then max. visiblity of autolevel is 4m.
If staff is of 3m then max. visiblity of autolevel is 3m.
But least visiblity of autolevel or other levelling inst. is 5mm for any staff.

Rakesh

• Feb 28th, 2016

4 M

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Force acts in any direction but weight acts only in downward direction

Sudharsan Reddy

• Apr 27th, 2016

Action of body or object is called force,
Gravity of object is called weight

chaitanya

• Jun 12th, 2015

Weight depends upon gravity. But force does not. You can have you have hit the wall with "full force" but not "full weight". So force can be in any direction. But another point is, force will increa...

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Which is the best dia of binding wire to be used?
and how would we define?

Pritpal Singh

• Jun 7th, 2015

18 gauge

arshad

• Jun 3rd, 2015

Binding wire about 8 to 11 kgs per tonne
diameter 2 mm

in UAE 2% of total reinforcement work is used

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