Build your professional network on facebook via our app Go to app
 
<< Prev  8 of 10 in Topic  Next >>
 
Created by : Yogendra Singh Chauhan, Civil Engineer-Highway Roadway, AECOM  | 06 25 2009 07:42:49 +0000
Industry : ConstructionFunctional Area : India(Markets)
Activity:  38623 views;  last activity : 08 17 2013 21:52:10 +0000

I have observed that use of concrete hollow blocks is very less for construction in INDIA.........brick or stone masonry is very popular.........In my opinion hollow blocks are superior to traditional masonry in many aspects i.e. economy/quick construction/heat insulation/very easy to produce and many more........what are the reasons behind the less popularity of hollow blocks in comparison to traditional masonry.........

 
 Refer 124
Share
 
 
  Rate : 
 
 
Brick/stone masonry is better Vs Concrete hollow blocks masonry is superior
15
 
 
 
 
25
8
28
Support   Support
Top Argument
7
5

According to me if  you are thinking about  safety and life of the wall, then the brick wall is the better choice  than hollow block wall, because the hollow block wall is not strong as a brick wall, others may not agree with me on this but i am telling from my experience...If it is a temporary or to save the expenditure,  we can  go with hollow block but still it is not advisable if it is a  permanent wall or  building  because  the hollow block is not so strong as a brick wall..    May be the brick wall and stone costs much high and consumes less time in building,  but one should think of the safety  and  the life  of the wall and the building as a whole first!!


By Anjali Sinha, Construction-Heavy, Sobha Developers  06 26 2009 06:29:01 +0000
 
Top Argument
4
1

Although I have not dealt much with Hollow concrete blocks but my understanding, developed by reading and interactions, is biased towards hollow blocks.

But after reading Anjali Sinha's comments I realised that for structures like parapet walls of bridges and culverts, retaining walls, water tanks generally bricks are specified and not hollow blocks.

It may be so that the hollow blocks are good enough for common dwelling structures, partition walls etc but not for relatively heavier (I mean heavy duty) structures.


By Vivek Singh, Project Manager, L&T  06 26 2009 09:10:03 +0000
0
0

Brick/stone masonry is superior in quality point of view where it satisfies quality standards as per IS and it is applicable for load bearing structures,residential building,acoustic buildings and so on. For economical use in framed structures with multi storeyed buildings we prefer concrete solid blocks but not hollow blocks which we use for boundary wall construction


By VIMALAN , DIRECTOR, VIRGIN ENGINEERS  | 04 10 2011 14:02:22 +0000
0
0
Brick is better cos when u use hollow block u will face to lot of diffulties to work with services. if it is factory or warehouse ,block ok.
By Monika Princy Gamage, Senior Estimator,Project Manager, ,Sisira Builders Pvt ltd,Engineering Quest Pvt ltd,City Services Associate  | 02 21 2011 17:52:36 +0000
0
0
according to me brick wall is 100% better than hollow block. There is problem of Seepage of water through hollow blocks, Crack development in plaster is more in hollow blocks masonry, Strength wise Brick walls are stronger than hollow blocks
By jeetendra g. shinde, Civil Engineer -, jeetendra constructions  | 02 21 2011 13:38:47 +0000
0
0
I totally agree with Anjali, for the safety purpose & life of the building. Both are crucial and important, though one has to pay more, but then its worth going for
By KIRIT PATEL, V.P - Projects, Yellowstone Landmark Infocity  | 02 10 2011 13:27:45 +0000
0
0
Brick wall is much safer than hollow block wall. Hollow block is always weaker. It may not carry resale value for a building.
By Amirtharaj K, Manager, EGS Computers India PVT Ltd  | 01 18 2011 04:39:46 +0000
3
0

I agree with Anjali that brick/stone masonry is better. Hollow blocks are economical, faster and good heat insulator but can only be used in temporary structures.


By Dilip Singh Rathore, Construction-General Building, Deep Associates  | 06 26 2009 13:05:52 +0000
0
0

According to me concrete hollow blocks masonary is superior but after thinking to the comments by Anjali sinha i am changing my views.


By Sibasis Dash, Civil Engineering Expert, STUP consultants Pvt. Ltd.  | 06 26 2009 12:23:49 +0000
0
0
I notice in India people see hollow blocks as being cheap. well in Nigeria it far more expensive compare to brick in which is make from laterite with 5% cement that is abundant. hollow brick is 100% pure sharp sand and cement.
By Iyakise Udofia, CHAIRMAN, Abstract Works Ltd.  | 08 17 2013 21:52:09 +0000
0
0

I agree with Ashok and Thanks for rightly highlighting that our Engineering Curriculum is lacking way behind and outdated in totality compared to overseas institutions.


By syed hussainy, Freelancer, Communications and Networking  | 08 15 2013 04:07:06 +0000
0
0
Let us all remember the first sentence we read when we started studying SCIENCE. MATTER CAN NOT BE CREATED OR DESTROYED. We can only change the form to suit our needs and demands. The topic is about the popularity. The answers are more like comparing a pencil with a pen. Each one does its own duty and good in its own domain. Coming to popularity, many of the products and technologies initiated in several parts of the country have stopped at their first level of introduction. All of us know Engineering is about application or innovation and not merely invention. Services can be worked out, if we have time and zeal. Are these blocks weaker than a concrete jali we use for ventilators and windows in some places? Where shall we keep the destroyer? away from the building or away from entering the room after entering the campus? If the hollow block is considered weak and limited to use only for compound wall what about the safety of the campus? This is not intended to embarrass any participant in this discussion, but only to realize the context. What we shall understand is, Hollow block is not understood correctly by most of us, the primary reason for it being not so popular. The hollow block masonry wall is the best, only when the hollow volume is ventilated or the hot air trapped is exhausted, because it is made of concrete surfaces of lesser thickness and gets heated quicker. Let us take a look at the hollow clay bricks (extruded) from Weinberger and others, who have developed interesting details for accommodating the service lines. Today, we are in the age of research for developing concrete that shall pump up water from below the earths’ surface through its surface or its volume.
By PRB RAO, Architect  | 05 20 2013 18:31:21 +0000
0
0
Let us all remember the first sentence we read when we started studying SCIENCE. MATTER CAN NOT BE CREATED OR DESTROYED. We can only change the form to suit our needs and demands. The topic is about the popularity. The answers are more like comparing a pencil with a pen. Each one does its own duty and good in its own domain. Coming to popularity, many of the products and technologies initiated in several parts of the country have stopped at their first level of introduction. All of us know Engineering is about application or innovation and not merely invention. Services can be worked out, if we have time and zeal. Are these blocks weaker than a concrete jali we use for ventilators and windows in some places? Where shall we keep the destroyer? away from the building or away from entering the room after entering the campus? If the hollow block is considered weak and limited to use only for compound wall what about the safety of the campus? This is not intended to embarrass any participant in this discussion, but only to realize the context. What we shall understand is, Hollow block is not understood correctly by most of us, the primary reason for it being not so popular. The hollow block masonry wall is the best, only when the hollow volume is ventilated or the hot air trapped is exhausted, because it is made of concrete surfaces of lesser thickness and gets heated quicker. Let us take a look at the hollow clay bricks (extruded) from Weinberger and others, who have developed interesting details for accommodating the service lines. Today, we are in the age of research for developing concrete that shall pump up water from below the earths’ surface through its surface or its volume.
By PRB RAO, Architect  | 05 20 2013 18:30:48 +0000
0
0

As per the techincal person , i have study throw whole case the normal Caly brick is not having sufficient strength than the concerte Brick what is their compressive strength. while the compressive strength of the concerte brick is 5MPa for soild Concerete brick and the Hollow Concetre brick is having 3mpa . even the Surface face is better then the Stone brick. Due to stone brick is heavy when earthquake come there will be lots of damage. 

When will be do the Plaster the surface of the stone brick will be uneven and the plaster some where don't dry and due to that the crack on the wall will be obesrve. the water absorve will be more then the conbrick.

for the Luxury banglow most people should go with the hollow brick because the internal wiring and the pipeline will be done in better way.

For more details contact on 9909628229


By jigar , Harsh Engineering  | 03 02 2013 09:10:15 +0000
1
0

Concrete ECMU ie. Engineered Concrete Masonry unit also known as Load bearing Hollow Concrete blocks of minimum M7 grade are routinely used in all developed countries as a material of choice for high rise construction. In some European countries, framed construction using RCC columns is banned for structure upto 6 floors. For multi-storeyed construction, Rebar is inserted into the hollow blocks and then it is filled with concrete where required so that it becomes Structural masonry. This type of construction reduces cost by more than 25 percent. In India, most engineers are unaware of Structural masonry because very few manufacturers produce high grade ECMU blocks. Also, we are not taught about masonry design in our civil engineering curriculum. ECMUs if produced correctly do not require plastering inside or outside. The blocks have about 6 percent permeability only which means that they are water resistant. One coat of textured paint will make the outside waterproof. Electrical conduits can be inserted during construction so there is no need to chase the walls for elec wires later.  It is more earthquake resistant than a framed structure. It is thermally beneficial in our hot weather.In my opinion, for a developing country like India, load bearing hollow block masonry is the perfect choice for construction. Masonry has been proven for more than 4000 years ! 


By Ashok N R Mysore, Chief Consultant, Ace Technologies  | 11 06 2012 05:31:15 +0000
0
0
there strength can be as per reqiurement. They r gnerally stronger from bricks by 15-20times.They r made from lean concrete mix with high mechanised compaction n vibration.So there strength is grester as compared to bricks.They also posess themal insulation ,sound insulation,fire resitance,frost resistance,vermin resistant etc .They r vvv DURABLE. can be build up easily n also ECONOMICAL. So regarded superior from bri
By Rai Pranjal, B.Tech/B.E. student, K.V. DAMOH M.P  | 06 16 2012 17:36:53 +0000
0
0
IN HCB BLOCKS, LESS MORTAR CONSUMPTION, REDUCED A/C POWER CONSUPTION MEANS BETTER INSULATION IN TEMPERATE ZONES, SAVINGS IN PLASTERS, REDUCTION IN CONCRETE & STEEL IN FRAME STRUCTURE. THE MAKING OF HCB NEEDS HIGH QUALITY PRECISION MACHINES ARE COSTLY ATTRACTS ONLY ORGANISED SECTOR TO CATER THE BENEFITS. WE HAVE SEEN CRACKS IN HCB SUPPLIES FROM NON-TECHNICAL MACHINES RESULTED IN CLOSING OF FACTORIES. HCB BLCOKS NEED TO ACCOUNT SHRINKAGE FACTOR & NEED REINFORCEMENT EVEN IN INFILL WALLS TO REDUCE SHRINKAGE FACTOR & HENCE REDUCE CRACKS. THIS IS MY EXPERIENCE.
By Vikram Kothari, PROPREITOR/ENGINEER, SHREE JAIN CONSTRUCTION  | 07 12 2011 06:38:51 +0000
0
0

I am in line with Mr. Mohd Baksh,

Loads are spread out through column, beams & the direct load impact on wall is distributed evenly as such it won't be a threat for wall construction. However, for construction to the Clients is to be carried out as per the standard set in his contract deal. Because at place, it may warrant stricter standards than what is normally accepted as Bridge, Dam etc where the impacts are more from other sources.

Moreover, CBH reduces the depletion of trees for burning as fuel in Bricks & the land soil that is rich for cultivation. This environmental concern is also to be considered.


By KALIYAMOORTHY , PHSEM, CTCI Corporation  | 04 17 2011 02:26:19 +0000
0
0
Depends on geographical conditions. In central India, there's less risk of earthquake and its hot. Hollow concrete blocks are better insulators for heat. So its better option here.
By Abhijit Anand Prabhudan, Admin/Facilities Manager, Ca*****  | 04 10 2011 15:02:54 +0000
0
0
It reduced the cultivated soil to convert their bricks, comparatively strength will more on concrete block and same cost also little bit cheap.
By JAGADEESAN S, Project Leader/Managing Consultant, Project Consultant  | 04 04 2011 04:44:23 +0000
1
0
I think Mr Yogendra Singh is dealing with CHBs. Let me make it clear I do not subscribe to argument put forwarded by Anjali. Some more research need to be done on CBH.I think for builders economy more than any thing else.Brick and stones are easily available and cheaper and can finish the work early on time.I am theorizing these blocks would be immensely useful construction of residential as well as malls.Further there is no direct load coming on these walls.
By Mohammad Bakhsh, Consultant(Civil), Rail Vikas Nigam Limited  | 04 04 2011 03:51:13 +0000
0
0

I support the view of Mr. Harish.

Scarcity of supplier is the main reason for concrete hallow blocks.


By SHRIKANT MANOHAR DANKE, Zonal Manager / Sr. Project Manager ( Civil Engineering), Kumar Properties  | 03 02 2011 07:08:20 +0000
0
0
Possibly many may not be aware of engineered Concrete Masonry products. It is perfectly possible to design load bearing structures with Hollow Blocks. Structural Masonry offers tremendous scope for optimizing construction.Also, structural masonry designs are stability based. With Engineered Concrete Hollow Block masonry the scope for flexible designing is enormous.
By V.Surendra , Consultant, Denwick Overseas Pvt. Ltd.  | 02 12 2011 09:30:32 +0000
0
0
There has always been a reluctance to accept new methods & technologies, so is the case of concrete hollow blocks. Out of various advantages, the concrete hollow block carry with themselves, the main one is the cost factor. In these days of framed structure, where all the load of a building is taken by columns and beams, the masonry work is only for partition. Hence the concern of safety does not come into point here. However had it been in the earlier days, where all the walls were load bearing walls, brick would have been opted. But I certainly feel, hollow block masonry if far better than brick masonry in terms of money, time, aesthetics ec.,
By Prasanna S, Civil Engineer-Other, Dasari Builders Pvt Ltd  | 02 12 2011 09:09:43 +0000
0
0

Harish's points are well made. One of the main reasons why Hollow Block Masonry products (such as Hollow Concrete Blocks for Walls, Lintel Blocks, Architectural Blocks, Sill Blocks etc.) have not been widely used is the challenge of manufavcturing. Imported technology and lines mean exceptionally good quality but huge huge investment. Egg Laying technology simply does not have the capability to achieve the factory controlled parameters that engineered masonry technology can achieve. We have spent the last 3 years researching and have finally developed a fully automatic engineered masonry manufacturing machine and have established a pilot plant now. We also find that with this, one can produce products of very good integrity and a range of designs.


By V.Surendra , Consultant, Denwick Overseas Pvt. Ltd.  | 03 03 2010 11:26:34 +0000
2
0

I definitely agree with Yogendra Singh and others.There are more pros than cons in use of Hollow concrete blocks in lieu of conventional Clay Bricks.

Some of the pros are:-

1) HCB have less density resulting in to reduced loading hence saving in   structural steel(We have seen enormous price hike in steel in past 3-4 years)

2) Better Insulation properties,lesser u-Values result into energy savings.

3) Hollowness results in to better sound insulation.

4) Accurate dimentions resulting into reduced plaster thickness.The conventional clay bricks are always found inconsistent in dimensions.Thus saving on account of lesser cement consumption.

5) The water absorbtion in HCB is only 3% while in case of Clay bricks it is as high as 19%.The Interiors can be started even if external plaster is not yet done.A very effective tool to save construction time.

 6) No Efflorescence,which is always present in case of clay bricks.

 7) Excellent as exposed material.The HCB's are available in a variety of colours,textures,styles and stone cut like finish.The surface can be painted stained or left natural.No plastering is really required.

 8) The HCB vendor can be allowed to make the blocks at site (approx.1000 Sq.m.) thus reduction in transportation cost can be achieved.

Some of the cons are:-

1) There are very few vendors available.In NCR you one can count these vendors on fingures.The conventional brick kiln owners are very large in number.Moreover,the production capacity of one vendor is at the most 8000 to 9000 blocks per day,which is very little (in fractions) in comparison to huge per day peak demand of any of the big real estate developers.To cater to demand of one big real estate developer,you require at least 6-7 dedicated vendors.

2)  Rightly said by Shri Satish Salpekar that there has been complaint of presence of cracks at joints position in some of the cases,requiring repair work and repaintng.This repainting, if done only at repired potion is conspiquously visible in broad day light due to different ages of painting.

 3) It is prefered to fix door frames along with block masonry to avoid development of cracks at hold fasts and at lintels.This hampers speed of construction and requires cash flow.

4)  While chase cutting,web of blocks gets cut and thus extra filling of mortar is required.

 5) I have been pursuing the case of HCB's since 2004.The HCB's have never been found to be economical than conventional clay bricks.The final supplied and applied cost has always been found to be costlier to conventional brickwork by  approximately Rs.100-200 per Cum.The issue is-at least at present,while there does not seem to be any shortage of conventional clay bricks and neither we are  commited to provide HCB's,why should we incur extra cost. 

So,it is only the big players in our construction industry,who can encourage more and more HCB manufacturers to come forward.This will inculcate competetion in the market and thus lowering the price of blocks and then automatically,there will be an urge to switch over to Hollow Concrete Blocks in lieu of conventional bricks.

Regards,

Harish


By Harish , Addl. GM(Planning), Unitech  | 03 03 2010 10:50:40 +0000
0
0

In may opinion using HCB (Hollow concrete block) for External and internal partition walls of building structure is with no hesitation reduces the total cost of the structure, since the weight of HCB is lighter than bricks and stone masonry, which means having lease dead load and reasonably, when we reduced dead load the earthquake load also reduced ( i.e. using HCB walls is safe and economical for building structure.) But for structures interrelated to water like water retaining structures it is recommended to use solid bricks and stone masonry.

 


By Muluken Belayneh, Structural Engineer-Building, GT Consulting Engineers  | 12 08 2009 20:23:48 +0000
1
0

Engineered Concrete Hollow Block Masonry is definitely superior.

The products are:

1) Precise

2) Properties can be engineered to meet requirement.

3) Along with reinforcement and grout, one can design structures that can withstand powerful earthquakes,wind, others. Option to design for both vertical and horizontal shear loads available only with  engineered hollow concrete masonry products.

4) Environmentally, these have the most efficient values for embodied energy and embodied carbon.

5) Dimensionally precise.

6) High density but low gross weight.

7)As against Solid Block or Brick, can save upto 50 % weight and hence drastically reduces dead load of buildings without compromising on structural integrity.

8) One can use manufactured sand, admixes and fly ash in the design mix to obtain products of consistent integrity.

9) A huge range of products such as Lintel Blocks, Architectural Blocks, Retaining Wall Blocks, Landscape products, Paving Blocks etc. possible to be manufactured in the same processing line.

10) Exposed masonry possible. In fact because of precise dimensions, plastering thickness can be minimized to even 6 mm.

11) Various features that can be introduced (such as conduit pockets etc.) make the product extremely flexible, efficient and very cost effective.

 

 

 

 

 

 

 


By V.Surendra , Consultant, Denwick Overseas Pvt. Ltd.  | 10 07 2009 09:36:12 +0000
0
0

I support the arguement that the concrete blocks are far more superior than the traditional kiln bricks used generally in our country,but needs to be used properly with right amount of concrete mix and proper curing.


By jps kumar, Project Manager, ECI ECC Ltd.  | 07 11 2009 06:47:21 +0000
1
0

SUBJECT TO FOLLOWING

1.THEY ARE CONSTRUCTED TO THE SPECIFICATIOS WITH CURING AS REQUIRED i.e NO. OF DAYSOF CURING.

2MADE AVAILABLE AT THE TIME OF WORK AND OF REQIRED STANDARD SIZE.

3. QUALITY OF ALL MATERIALS USED ARE AS PER SPECIFICATIONS.

4.THOUGH THEY ARE COSTLIER THAN CUSTOMARY BRICKS FROM BRICK KILN


By SB DIKSHIT, STATE QUALITY MONITOR, U.P.R.R.D.A  | 07 10 2009 14:55:15 +0000
0
0

Concrete Hollow Block Masonry is certainly supirior than the conventional brick/stone masonry on many counts. However, the hollow block masonry is not seen much in India because cracks are seen very often in the hollow block masonry. The crack that appear in hollow block masonry are mostly the shrinkage cracks due to differential shrinkage coefficients of the concrete in the hollow block and the mortar used in joinery. Very often people use rich mortar for hollow concrete block masonry, whereas the mortar mix shold match with that of concrete mix of the hollow block. A properly constructed hollow block wall will never crack.


By Satish Salpekar, Vice President (West), Association of Consulting Civil Engineers (India)  | 07 10 2009 07:53:59 +0000
0
0

Concrete Hollow Block Masonry is definately supirior but In India it is not used much because people are not aware of the proper block masonry practices. Hence, most of the hollow block walls crack. Very often people use rich mortars for block masonry, thereby invite shrinkage cracks due to differetial shrinkage coefficients of Concrete in the block and the mortar used for joinery. If you follow proper practices in hollow block masony, there will be no cracks. I have been using hollow blocks for many years.


By Satish Salpekar, Vice President (West), Association of Consulting Civil Engineers (India)  | 07 10 2009 07:46:11 +0000
1
0

i quite agree with yogendra and others here the Concrete block is faster, economical and heat insulation in better compare with Brick wall. Serves the purpose.


By Anjali Bhatia, Construction-Heavy, Sobha Developers  | 06 26 2009 06:47:26 +0000
1
0

Hollow blocks are strong.......you can check the strength.........


By Yogendra Singh Chauhan, Civil Engineer-Highway Roadway, AECOM  | 06 26 2009 06:39:02 +0000
1
0

I also support the idea as hollow bricks are more convenient re. insulation,support ,quality and hardiness.These are ideal in every aspects of construction,may be its a building,room,pavement,floor,or side walks .These are in all way superior to lay brick.One should be aware of this convenient brick .


By BEENA AGARWAL, Head/VP/GM-Corporate Planning/Strategy, ANADI HI TECH AGRO PVT LTD  | 06 26 2009 05:22:50 +0000
3
0

Concrete hollow block masonry is superior.........In my opinion hollow blocks are superior to traditional masonry in many aspects i.e. economy/quick construction/heat insulation/very easy to produce and many more........and I think we must encourage hollow block masonry instead of brick or stone masonry....


By Yogendra Singh Chauhan, Civil Engineer-Highway Roadway, AECOM  | 06 25 2009 07:42:49 +0000
Leading executive search firm
Hiring DFT Professionals
ASIC Verification Engineer JOBS
 
 
More From Author
I do and I agree that "10 minutes early!" can make our life more easier and more relaxed......
I do and I agrre that "10 minutes early!" can make your life much easier and much relaxed.........
Playing sports can teach you everything.........Winning, losing, maneuvering, deceptions, joy, fighting spirit, falling, standing up again, cleverness, cunningness, tricks, team spirit, sportsman spirit, quickness, swiftness….and so on……..GO PLAY…
more...