Aac Block Masonry

1

AAC BLOCK MASONRY

Prerequisite

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

Before starting any block work, prepare asonry layo!t on a typical "oor plan#



 $%ickness of eac% wall is arke& on plan in &i'erent colo!rs#

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Marking (C%%apka) !st be &one on e*ery "oor an& before starting of block work, concerne& site engineer !st c%eck t%e opening, roo &iensions, position of &oor fraes an& win&ows as per t%e arc%itect!ral working &rawings#



+rewetting of block s%o!l& be &one before - %rs, an& it s%o!l& be s!rface &ry at t%e tie of !sing#

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Masonry

Marking (Chhapkam) 

++C ceent wit% a proportion of 1/0 is to be !se& for 1st an& last layer of asonry %a*ing oint t%ickness of 121-#

3

Application of Chemical Mortar 

Mi4 proportion / 



5ater / C%eical 6 1/. or As per Material speci7cation#

8irst Co!rse (Non&%)/ $%e 7rst co!rse of concrete block asonry s%all be lai& wit% great care, aking s!re t%at it is properly aligne&, le*elle& an& pl!be&, as t%is ay assist t%e ason in laying s!ccee&ing co!rses to obtain a straig%t an& tr!ly *ertical wall#

9

0

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:*ery layer of c%eical ortar s%o!l& applie& wit% notc%e& trowel

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 $%ickness of layer s%o!l& be in# 9#

;

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Line, le*el an& pl!b s%o!l& be c%ecke& for e*ery layer#

<

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Ben&s, st!bs an& st!&s s%o!l& be pro*i&e& as per appro*e& &rawing

>

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 =oint s%o!l& be staggere& an& to be 7lle& !p wit% ortar

C%ecklist for AAC block Sr. No. 1. 2. 3. 4. 5. 6.

Checks Description S!rface cleaning, reo*al of nails, bin&ing wire fro RCC eber C%eck ?!ality of blocks an& &iensions (Appro*e& so!rce) C%eck type of asonry an& t%e nat!re of bon& re?!ire& Re&!ce& le*el to be arke& at eac% col!n  $%e le*el of RCC ban& arke& on t%e col!n wit% &!e consi&eration of layer t%ickness Marking of wall layo!t

7.

5etting of s!rface of block# Mortar ratio

8.

C%eck after 1st layer @ iension, rig%t angles, pl!b, o'set etc# 8or s!ccessi*e layer c%eck

9.

a.

+l!b, le*el

 b.

Consistency of ortar

c.

Raking of oints

d.

Le*el of RCC sti'ener

Yes

No

1 2 Not Applicable

1 1

+lastering

Before plastering 

+laster s%o!l& only be starte& after copletion of block asonry an& electrical works#

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+laster to be starte& only after coplete c!ring of electrical casing (ari), Repair works if any s%o!l& be &one#

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C%eck t%e &oor an& win&ow fraes alignent, le*el an& pl!b before starting t%e plaster#

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Clean t%e RCC s!rface wit% water an& reo*e tapes, nails, sl!rry leakage, s%!ttering oil an& also repair %oneycobing if any#

1 -

1 . 

C%icken es% s%o!l& be pro*i&e& at electrical casing an&  !nction of RCC an& Masonry before -3%r of plastering#

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All %ackingtanc%a work (ro!g%ing t%e s!rface) s%o!l& be 7nis%e& on R#C#C work#

+lastering 

1/3 CM s%o!l& be !se&##

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Once t%e aking of tanc%as (ro!g%ing t%e s!rface) are &one,1- to 19  t%ick plastering blockle*el pa&s ($%aiyas) s%o!l& be prepare& on asonry work for referencing p!rpose#

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5it% t%e respect to plastering blockle*el pa&s ($%aiyas), w%ole plastering acti*ity s%o!l& be carrie& o!t#

1 3

1 9 

+reparation of s!rface s%o!l& be carrie& o!t before plastering wit% c%eical ortar

1 0 

8irst coat of plaster s%o!l& be applie& wit% ortar of %ig% water content# $%en s!bse?!ent coat s%o!l& be applie& wit% ortar of low water content#

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At last it s%o!l& be 7nis%e& wit% t%e %elp of "oat an& trowel# No !ne*en s!rface s%o!l& be obser*e&#

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5rite &ate of plastering on t%e plastere& s!rface for ; &ays c!ring#

C%ecklist for plastering Sr. No. 1

Checks Description S!rface preparation a# Dacking of RCC s!rface b# +ro*ision of c%icken es% at RCC an& Masonry !nction c# Cleaning of t%e s!rface w%ere ortar is to be i4e& &# 5etting of base s!rface e# C%eck t%ickness of le*el pa&s

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C%eck t%at proper sca'ol&ing is pro*i&e&

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C%eck type of plaster

3

C%eck No# of coats an& t%ickness re?!ire&

9

C%eck i4 proportion

0

C%eck consistency of ortar

;

C%eck &iension, rig%t angles, pl!b, &oor 

Yes

1 ; No

Not Applicabl e

1 <

 $%ank yo!E