Rat trap bond
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Transcript of Rat trap bond
Estimation Of Rat-trap Bond
“Economical solutions to all brick masonry walls”
Masonry ??
“masonry means work done by masons”
Basic Terms in Masonry
Conventional Bonds Using in India
Flemish Bond English Bond
Proposed Bond
Why go for Rat-trap bond ?
1. Economical 2.Thermal Insulation
Why go for Rat-trap bond ?
3. Light weight 4. Earthquake resistance
Why go for Rat-trap bond ?
5. Sound proof 6. Fire resistance
Why go for Rat-trap bond ?
7. Environmental Friendly 8. Energy Saving
Estimation
1. Strength
S.No. Description Brick Strength () Initial Crack Ultimate
Load (kN) Stress () Load (kN) Stress ()
1. Rat-trap Bond 5.6914 204 1.166 252 1.642
2. Conventional Bond 5.6914 208 1.152 285 1.698
2. Material Saving ( for 1)
S.No. Description Bricks Quantity of Sand (for 1:6 mix) Quantity of Cement (for 1:6 mix)
1 Rat-trap Bond 84 0.0295 0.142 bags
2 Conventional Bond 100 0.0641 0.308 bags
• 16% of bricks are less used.• 54% of sand is less used.• 57% of cement is less used.
We are still working on the model…