From the Desk of Executive Director


 It is indeed an honour & privilege for me to assume the charge of Executive Director, BMTPC. On this   occasion.....

read more

  New Initiatives : Emerging Technologies
 
POSTPONED: Indo-Norwegian Training Programme (Non-Residential) on Seismic Design of Multi-storey Buildings: IS 1893 vs. Eurocode 8, March 16-18, 2017 at New Delhi CPWD Inclusion of Emerging Technologies in Delhi Schedule of Rates dated 24 June 2016 Ministry of Urban Development OM regarding Adoption of New & Emerging Technologies by CPWD, DDA and NBCC CPWD OM dated 17/08/2016 regarding Adoption of New and Emerging Technologies in projects on Turnkey basis CPWD OM dated 28/12/2016 regarding Mandatorily Adoption of New and Emerging Technologies in projects Opportunity to Share Your Sustainable Building Materials/Technologies on Knowledge Portal Notice Inviting Tender for Supply, Installation and transportation of Octonorm system at IIT Kharagpur
 

  Brick Foundation in Cement Mortar 1:8
System Components
Initial Cost Structure
 
 
DESIGN EXAMPLE : Foundation for a TWO storey Building
 
 
Maximum width required = 2 x width of the wall +0. 3m
(Assuming 23cm thick brick wall) = 2 x 0.23 + 0.3 m.
                                                = 0.76m.
 
 
Minimum Depth Required = 
 
 
Assuming P
Safe permissible pressure on base) = 175 KN/sqm
 
W (weight of soil)                           = 18 KN/sqm
 
Angle of repose of the soil = 30 = 175/18x0.111 = 1 m.
 
Assuming bearing capacity of soil  = 200 Km/sqm
Width required                             = 175/200 = 0.85m
 
Thus provide a foundation width  = 85cm and depth 100 cm
 
Critical Factors
 
1. Curing
2. Width and stepping of foundation
3. Breaking of vertical joints
4. Quality of sand for mortar
5. Availability and cost of bricks
 
Tools Used
 
1. Trowels
2. Plumb bob 
3. Thread
4. Pans
5. Shovel
6. Pick axes
7. Baskets
 
DO’S
 
DON’T’S
 
·      Curing of masonry should be done on seven days
·      Vertical masonry joints should be properly broken
·      Masonry should be stepped after one day’s construction
·      Mortar should be used within 30 minutes of adding water to the mix.
 
·      Fine sand should not be used in mortar
·      Height of masonry construction should not be more than 1m per day
·      Masonry should not be allowed to dry out quickly
 
 
 
 
 
References : IS : 1080 – 1980 Simple Strip Foundation; IS : 1904 – 1973 Shallow Foundations; IS : 1077 : 1986 Bricks; IS : 2212 : 1962 Brick Work; National Building Code of India : 1983 Part VI : Sector 2; IS 2250 : 1981 Mortars .

 
Creating Enabling Environment for Affordable Housing for All…… since 1990
 
Home l BMTPC mail l Feedback l Site Map
Designed & developed by: Hollywood Multimedia Ltd. All rights reserved by: BMTPC