Brick Masonry :Mistakes to avoid.

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Finishing work

There is no Anchorage with the column

Exposed brick work

Exposed brick work

Brick masonry. …estimation.

Hello Friends ,

Good afternoon.

Can you solve this example ?

Once you have solved this , have a look at the following slides for the correct solution .

Best of luck !

Hope your solution matches with the solution given above.

Bye

Blog Stats for reference :

ITEM RATE FOR AAC BLOCK MASONRY

READERS :

In case you are puzzled over this factor 2.43 , please this article ;

Rate analysis for brick work 

Thank you

 

How to prevent cracks between RCC & Masonry ?

Dear Friends ,

Good evening !

Yogesh Pradhan has asked a few queries.

Let us see if we can help him .

Yes Yogesh.

You have asked a very pertinent question.

Problem :

Cracks appearing on the joints between RCC and Masonry.

Reason :

Different materials joining together at a junction never become unified.

The materials are different .Their qualities are different. Their expansion & contraction coefficients are different. Their young’s modulus is different. So expecting them to be homogeneous is itself not correct.

Remedy :

Open the cracks and refill them.

Refilling can be done with cement paste or cement mortar of 1:1. Refilling and plastering make over is necessary. May be a coat of painting on the entire wall shall be needed.

Prevention of cracks :

Gulzarbandi.

Applying aggregate wrapped in cement mortar 1:1 in the joint between RCC and the masonry. This is a skilled work and hence required skilled artisans.

Provide chicken wire mesh at the joints.

Mesh can be either mild steel mesh or glass fibre.

MATERIAL FOR THIS WALL ?

Dear Friends ,

Today let us learn to find out the materials needed for the Brick wall.

 

Look at the basic sketch :

Now the solution is as follows ;

This way , we can find out the materials for the brick work.

 

 

LET US BUILD A THICK WALL

Dear friends ,

Good evening !

Today we are going to find out the material cost for a Brick wall.

Let us first write down the objective correctly .

First look at this photograph :

Just have a look at the drawing for this wall.

Since there are no details on this drawing , look at the following modified drawing.

Now just to give you more clarity about the dimensions to be considered , the sketch has been marked with details :

Now with this back ground , let us solve the exercise step by step .

 

Thank you Friends.

Bye

 

ESTIMATE ELEVATES SELF-ESTEEM

 

 

 

OH..NO..ESTIMATE AGAIN ???

PLAN OF THE ROOM 

 

SECTION THROUGH THE LOAD BEARING RRM WALL

NOW WE SHALL START CALCULATING THE QUANTITIES.

NOW LETS MAKE AN ABSTRACT :

 

Rate analysis for Stone Masonry :

Readers,

When I was standing in a car park , waiting for someone to complete the shopping ,

I got a Whatsapp message from one of my students , asking me for the Rubble masonry rates. He said he wanted to submit the quotation on the same day. There was no use of just giving him a rate which I remember because it has to match with the material and labour rates and profit margin expected by this person.

So , I had to make a rate analysis for the Rubble masonry .

I asked him to message me the basic rates which he promptly did.

I next 15 minutes , I completed the rate analysis and send back the entire analysis to him .

Thought I shall also share the same calculations with you for your quick reference.

 

RANDOM RUBBLE MASONRY USED IN THE COMPOUND WALL .
[ REAR PORTION ]

Part A : The data :

Cement: 300/bag

Aggregate:  2400/brass

Rubble : 1500/brass

Labour  :2000/brass

Sand 5500/ brass

You already know that : I brass = 100 Cft

Desired  Profit 25%

 

Specifications :

Rubble masonry Width 18″

for wall compound ht 3′ from ground level

 in cement mortar in ratio : ( 1:6 )

 

Material for 1 cum:

Cement : 300*(0.45*1.52*28.8)/7= Rs.844

Sand:   5500*0.3529*6*(0.45*1.52)/7= Rs.1138

Rubble: 2400*0.3529*1.25 = Rs.1058

Labour : 2000*0.3529= Rs.706

 

Total:                        Rs.3756

Profit:Add@ 25%:     Rs.937

                   Total:  Rs.4693 Rs/cum.

Or             Rs.133 per Cft.

 

PCC 1:4:8

Material for 1 cum:

Cement : 300*(1.52*28.8)/13 = Rs.1010

Sand:   5500*0.3529*4*1.52/13 =Rs.908

Aggregate: 2400*0.3529*8*1.52/13  = Rs.792

 Sub total:                     Rs. 2710

For Labour Add 40%    Rs.1084

Total :                            Rs. 3794

Profits Add25%               Rs.949

Total :  Rs. 4743 per Cum

Rs.   134 per  Cft.

  

Note :

1.You shall observe that the rate for Rubble masonry in cement mortar in CM 1 :6 and the rate for plain cement concrete in proportion 1:4:8 are  almost equal

2. The material wastage is a point on which I need to elaborate.

As such when we consider the factor 1.52 in the material calculations by dry mix method, we are already considering 2 % material wastage . In case you want a higher allowance for wastage , you may take the factor as 1.57 so that material wastage is 7%.

Brick work at London 02

Well , the photograph which now you are going to see is not exactly from london.

This is  a bridge on the way to the Brighton. A coastal town on the southern coast of United Kingdom.
in my rough assessment, this bridge must be built prior to year 1900 AD.

[ Exact year of construction can be found out …but is not known right now ].

Look at the marvellous arches in the bridge which have been constructed out of the brick masonry.

There is no plastering on this brick work.