Basic construction training manual for trainers 15 ongoing brick wall rat trap bond construction 1. There are many modern new technologies available in the market for low cost and genuine housing construction, one of the revolutionary technology is rapid wall panels gfrg if you use rapid wall panels you can save 2025% of the construction cos. One way to catch a lot of mice fast is to put out baited snap traps in every mouse runway in an infested building with glue traps in between. In fact, there are quite a few more obscure bond types, like rattrap bond, dutch cross bond, dearnes bond, and all manner of decorative, nonloadbearing bonds. Because baker did not like to do his jobs on drawing tables rather he preferred on site decisions. The most common is what i call the basic chunkandreel method. This trap was tossed in the green can and a freshly modified victor trap added to my trap line. This book is the most the important and complete publication on laurie baker yet. Top 10 energyefficient construction techniques the. Rat trap construction with iron rods on lateral pressure wall. The results of his work didnt so much find that one kind of trap is better than the other as they found that the two methods required vastly different amounts of work. The rat trap bond technique has been introduced in nepal by the vsbk cesef. Weve book marked it and sent it out to all of my friends since i know theyll be.
In hilly area solidhollow concrete block walls with rcc bands, as per 1. You may do so in any reasonable manner, but not in any way. Rat trap bond information civil engineering facebook. Diy brick rocket stove cooking without electrical power duration. Waggs experiment in ai, jeff and rat search for a way to destroy the insane nanny while keeping rat out of dr. Set the trap on the path next to the chewed wire, where the rat frequents. Typically, rows of brickscalled courses are laid on top of one another to build up a structure such as a brick wall bricks may be differentiated from blocks by size. For walling as alternative to conventional english flemish bond. Guide to types of brick construction cultural resource. In this article well look at the construction techniques prevalent in north india. Rattrap bond saves consumption of bricks by 18% and cement by 24% as compared to conventional english bond in addition to being lighter by 25% in weight.
This video explains what rat trap bond in brick masonry brickwall is. How effective are glue traps compared to snap traps. Rattrap bond wall, brick arches and filler slab this housing construction is the result of a technology that has been developed by the architect laurie baker see note 2 and has been tested and proven during the past 40 years in india. This file is licensed under the creative commons attribution 3. The rat trap bond looks very similar to the flemish bond in appearance. Cardstock and tray glue panels this is the simplest and most secure rat trap. Tam1 1 school of engineering, university of western sydney abstract adequate shelter for all people is one of the pressing challenges faced by the developing countries. While laying bricks, the manner in which they overlap is called the bond. The ratltrap is a bait that can be used in a variety of ways. Rattrap bond brick work definitely looks much more aesthetic than normal flatbrick solid brick work. By adopting this method of bonding of brick masonry compared to traditional english or flemish bond masonry, it is possible to reduce in the material cost of bricks by 25% and about. Concrete is good in taking compression and steel is good in tension.
Rat trap bond is a brick masonry method of wall construction, in which bricks are placed in vertical position instead of conventional horizontal position and thus creating a cavity hollow space within the wall. In addition to the basic baiting techniques for rats, these additional tips and techniques will help you to develop a more effective baiting program to target the specific behaviors of the roof rat. Traps set on a roof, right near the gap they were using to get into the house. Trapping a bass the ultimate bass fishing resource guide. Rat trap bond technology practical action sri lanka. You dont save 30% of bricks, but rather approximately 1520%, as you will have solid brickwork at the edges, corners, joints, floor level, sill. Nannys gripper arms had hurt the boy, but not as badly as the sniffers vicious beartrap jaws had hurt rats leg. Traps bolted to the wall on the pipes the rats were climbing into the attic. A rattrap bond is a type of wall brick masonry bond in which bricks are laid on edge i. Read this book and over 1 million others with a kindle unlimited membership. The t and cross junctions of the bond are available in laurie bakers.
The rattrap bond technology has been developed by architect laurie baker with the habitat resource centre in india and is a result of its experimentations in cost. Of bricks and bonds the rat trap bond architecturelive. Rat trap bond brick wall construction by earthbound. That in the flemish bond, the smaller bricks seem to be about half the size of the bigger ones, while in the rattrap bond, they seem to be only about a third the size. The author gautam bhatia tries to frame most of the works of baker in this book although it was a tough job. Filler slab technology is a simple and a very innovative technology for a slab construction. Rat trap bond wall it is a cavity wall construction with added advantage of thermal comfort and reduction in the quantity of bricks required for masonry work. Building with many windows providing desired ventilation and light. Cost effectiveness of using low cost housing technologies. The reason why, concrete and steel are used together to construct rcc slab, is in their individual properties as separate building materials and their individual limitation. The rattrap brick wall can be constructed in 8 or 9 thicknesses its strength is compatible with to standard 9 brick wall, but consumes 20% less. The load bearing tests done at the anna university has proven that a wall in rattrap bond performs as good as the usual english bond. Filler slab free download as powerpoint presentation. Usage of this technology leads to 20% reduction in the numbers of bricks required for the construction and this automatically brings down the price.
You can reduce construction cost of your house by approximately 26% by using a simple construction technology called rat trap bond. A universal theme runs through all of them a belief. The rattrap bond technology has been developed by architect laurie baker with the habitat resource centre in india and is a result of its experimentations in costeffective housing technologies conducted over 40 years. As this type of masonry has 30% of cavities, the dead load of the structure is reduced which in turn reduces the structure supporting members such as column and footing. Rat trap masonry have about 20% less dead weight and hence reduced sized of structural members and cost savings. The first rule of starting any masonary whether exposed or not is to place all the units bricks, blocks, or stones in the bond decided all over the plinth even covering the door openings.
The rat trap bond is simply a method of laying bricks when building a. Perhaps much of the content of the manual may be of relevance to many other parts of india. This adds this technology to the list of green building technologies and sustainability. Throw it out there and reel it back in relatively fast, hoping to trigger a strike from a feeding fish or generate a reactionary strike from a passive fish. Rats nose twitched as his morning breath washed over her. Introduction to rat trap bond masonry rtb a rat trap bond is a type of wall brick masonry bond in which bricks are laid on edge i. The trap was located a short distance from its original location with the bait gone but with psycho rat s chewed off tail in the trap hence the name psycho rat. Rat trap bond on a low garden wall brick images, garden. In case ive got you visualising rodents scurrying about, ease your mind. Acceptable housing laurie baker 1999 this manual is mainly put together to help deal with working out inexpensive, effective and acceptable housing schemes for the homeless families in kerala. It is important that all bricks used should be adequately fired and of uniform sized to ensure. It is a dry arrangement which will give you the correct mortar thickness to be maintained throughout the building as well as avoid. Here is a picture of a rat trap bond masonary in the starting phase.
How to reduce construction cost of my house and build it. Live simple, live free tinyhouse prepper recommended for you. Using traps, if placed and used appropriately, is the foremost way of rat control, specifically if you have pets or kids at home. Posted by deepali m on december 24, 2015 december 24. If mortar is placed carefully on the bricks some of it will fall into the cavities and be wasted.
Remember above the lintel there are in most cases no openings but masonary has to continue. Rat trap bond wall, brick arches and filler slab this housing construction is the result of a technology that has been developed by the architect laurie baker see note 2 and has been tested and proven during the past 40 years in india. Rat trap bond construction, advantages, and disadvantages. The air medium that is created by the bond helps maintaining a good thermal comfort inside the building. Each nation or even region has its own developed techniques to construct the plans of the architect.
How to make low cost and genuine housing construction and. Introduction to rat trap bond masonry rtb a rattrap bond is a type of wall brick masonry bond in which bricks are laid on edge i. This publication is intended to be a resource for contractors, architects, engineers, educators, project owners and others involved with the construction process. In this sequel to space station rat 2005, daley presents another entertaining outerspace romp in which the most vivid characters happen to be artificial.
With this technique there is reduction in cost of the wall by 25% as with conventional english bond 9thk wall 350 bricks are required per cu. Few other brick bonds used for walls are brick on edge bond, raking bond, zigzag bond, garden wall bond, monk bond, sussex bond, dearnes bond, silverlocks bond, and herringbone bond. Use of costeffective construction technologies in india. This can be avoided by holding a piece of wood about 3feet x 3inches x 34inch over the middle of the wall to cover the cavities while applying the mor tar. Particularly if you have kids and household pets at home. Rat trap bond when kept exposed, create aesthetically pleasing wall surface and cost of plastering and painting also may be avoided.
Popularised by the iconic architect laurie baker who died last week, this is a special. The twelfth east asiapacific conference on structural engineering and construction cost effectiveness of using low cost housing technologies in construction vivian w. Construction techniques in indian architecture by ashish. The rat trap bond construction is a modular type of masonry construction. Building walls with rat trap bondtheyre really cool bt square peg. Rat trap bond is a brick masonry method of wall construction, in which bricks are placed in vertical position instead of conventional horizontal position and thus creating a. Rat trap bond is a brick masonry method of wall construction, in which bricks are placed in vertical position instead of conventional horizontal position and thus. This video is the explainer video related to tips related to building construction subjects in civil engineering. Skilled labor and extra care are needed to design this bond.
The southern and western walls of the building, which face the sun during the day, have been built using a type of masonry called the rattrap bond. The rattrap construction method allows for two storey construction. Special attention is often required in baiting for roof rats because of their activity at. The cavity in rat trap masonry provided added thermal comfort. Construction plays an important part in architecture. The basic bond book provides an overview of contract surety bonding. Brickwork is masonry produced by a bricklayer, using bricks and mortar. This is one of the wall constructing method of brickwork on wall construction. But then you can also have solid rattrapbond walls.
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