How to reduce construction cost of my house and build it by. In addition this type of wall does not need thick plastering as both front and rear face of. When a more efficient form of construction such as the rat trap bond wall construction is considered, the environmental performance of clay fired brick walls is significantly improved. One such building technique is the use of rat trap. Perhaps much of the content of the manual may be of relevance to many other parts of india. Established in 1994 and registered in 2000, society for environment protection sep is a multidisciplinary youth organization working in the fields. Top 10 energyefficient construction techniques the. This can be avoided by holding a piece of wood about 3feet x 3inches x 34inch over. The dead load on the foundation would also be reduced by at least 20%.
Rat trap bond when kept exposed, create aesthetically pleasing wall surface and cost of plastering and painting also may be avoided. 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. Cost effectiveness of using low cost housing technologies in construction vivian w. How to bond with your pet rat with pictures wikihow. Construction of an ecofriendly building using green. Cost effectiveness of using low cost housing technologies.
The load bearing tests done at the anna university has proven that a wall in rat trap bond performs as good as the usual english bond. Laurie baker took every opportunity to try and make people realise the value of this method but, by and large, the 2025% saving in brick doesnt seem to have been appealing enough. Usage of this technology leads to 20% reduction in the numbers of bricks required for the construction and this automatically brings down the price. Rat trap bond also chinese bond substantially observes the same pattern as flemish bond, but consists of rowlocks and shiners instead of headers and stretchers. Notably, it is a referred, highly indexed, online international journal with high. The present work emphasizes on use of the rat trap bond wall technique with. Pdf reduction in cost of construction of foundation along.
The virtually vibration free operation minimizes the potential for ground movement and its resulting detrimental settlement. Filler slab free download as powerpoint presentation. Rattrap bond article about rattrap bond by the free. Top down construction procedure, advantages and disadvantages. Rural houses rural housing is more complex than urban housing as it usually has to cope not only with human. Rat trap bond construction is a modular type of masonry construction.
Oct 23, 2017 learn how to construct a rattrap bond brick wall sorry about the focus, skip to 2. The present work emphasizes on use of the rat trap bond. Use of costeffective construction technologies in india. Rat trap bond technology practical action sri lanka. Rattrap bond also chinese bond substantially observes the same pattern as flemish bond, but consists of rowlocks and shiners instead of. Hope house construction low cost feature rat trap bond walls. As the construction is appealing to the eye both internally. Rat trap bond brick wall construction by earthbound. Comparative performance of masonry bond patterns by c. 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.
Brickwork is masonry produced by a bricklayer, using bricks and mortar. As you know, rats live in groups and prefer to live next to people to find food and a safe home, especially in highly populated areas. One of the core principle of the society for environment protection sep is to promote a sustainable and accountable society through scientific and technological interventions and by creative involvement of youth in social reconstruction. Homemade rat and mouse trap the easy way to get rid of. Basic construction training manual for trainers 15 ongoing brick wall rat trap bond construction 1. Pdf download rsmeans building construction cost data 2012 means building construction. While laying bricks, the manner in which they overlap is called the bond.
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. Keep your hands open and let the rat move around at will. Can make a wall of one brick thickness with fewer bricks than a solid bond. Rattrap bond saves consumption of bricks by 18% and cement by 24% as compared to conventional english bond. In addition, the air cavities act as a thermal insulation and reduce heat penetration from the external sources. Of bricks and bonds the rat trap bond architecturelive. There was a poor man who sold rattraps and earned his livelihood. As this type of masonry has 30% of cavities, the dead load of the. Rat trap bond is a modular type of masonry bond in which the bricks are placed in a vertical position. Rat trap bond information civil engineering facebook.
Never squeeze your rat and avoid restraining it for more than a few seconds at a time. 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. Or even conventional materials can become ecofriendly based on the construction technique that is used. The air medium that is created by the bond helps maintaining a good thermal comfort inside the building.
This is an excellent site for sharing opinion my dream house with the experts including the viewers of this site. Use of costeffective construction technologies in india to. Rat trap bonds this doublewall technique uses bricks on edge with a cross brick between each and produces a 9inch thick wall with an insulating air cavity in between. Rat trap bond method in construction free autocad blocks. Rattrap bond is a kind of wall brick masonry bond in which bricks are sited on edge such that the shiner. In this study, it has been found that about 12% of total bricks and 22% of materials can be saved by using modified rat trap bond for walls and modified filler slab for roofs respectively, which. Jun 21, 2015 the rat trap written by selma lagerlof is a short story about an old disheartened beggar and thief who is taken in and shown generosity by a young woman, her kindness changes his bitter attitude about life. What is rat trap bond 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. Each type is then covered separately with an explanation of its function and advice on its use. Shiner and rowlock are visible on the face of masonry. The rat trap brick wall can be constructed in 8 or 9 thicknesses its strength is compatible with to standard 9 brick wall, but consumes 20% less.
Rat trap bond wall it is a cavity wall construction and leads to reduction in the quantity of bricks required for masonry work. Rat trap bond it is made by placing the bricks on their sides having a cavity of 4. 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. Inadequate manual compaction can lead to poor quality concrete. Brick structure when broken should be homogeneous, compact and free. 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. Construction of an ecofriendly building using green building. Rat trap bond for walls architecture et developpement.
Reduced environmental pollution associated with preconstruction earthworks. Rat trap bond is an innovational technique for efficient brick work system with many advantages over the conventional brick work system. 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. This can also usually be safely used up to 3 storeys in height and is equally load bearing. Wideskall disposable mouse mice glue sticky traps 4. 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. Cost effective construction tech ppt linkedin slideshare. Pdf experimental investigation of rattrap bond masonry. Of bricks and bonds the rat trap bond post by earthbound architecture rat trap bond is a brick masonry method of wall construction, in which bricks are placed in vertical position instead of. 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. What bonds are and are not a construction bond is a written agreement in which one party the surety guarantees that a. Jul 10, 20 rat trap bond it is made by placing the bricks on their sides having a cavity of 4. 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. A universal theme runs through all of them a belief.
Rat trap bond construction, advantages, and disadvantages. Pdf thermal comfort in different construction methods. It saves approximately 25% brick and 40% cement, and reduces the construction. By spending time in your hands, your rat will get used to your scent and bond with you. Experimental investigation of rattrap bond masonry systems under base shock excitation. In this article, we discuss the material criteria, construction, advantages, and disadvantages of rat trap bond masonry. By using rat trap bond for the construction purposes, it was able to reduce the huge usage of materials. Construction of an ecofriendly building using green building approach ashish kumar parashar, rinku parashar abstract raipur is the capital of the newly formed state of chhattisgarh, the environment of raipur city is very warm. 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. There is no one type of plan, no one set of materials, no one type of construction techniques. In door thermal comfort of a building has become very much important for tropical countries as sri lanka. The interiors remain cooler in summer and warmer in winters. A rat trap bond is a brick masonry bond in which the bricks are placed such that there are air cavities in the structure saileysh et al.
Rats can eat your food, lead to severe injury, and transmit diseases. Nov 04, 2017 this video explains what rat trap bond in brick masonry brickwall is. By adopting this method of bonding of brick masonry compared to traditional english or flemish bond. Rat trap bond wall is a cavity wall construction with added advantage of thermal comfort. What are ecofriendly building materials used in construction. Cost wise comparison on gap fillers in masonry walls. If mortar is placed carefully on the bricks some of it will fall into the cavities and be wasted. You can reduce construction cost of your house by approximately 26% by using a simple construction technology called rat trap bond. Rat trap bond when kept exposed, creates aesthetically pleasing wall surface and the cost of plastering and painting may also be avoided. 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. Thermal comfort in traditional buildings composed of local. This video is the explainer video related to tips related to building construction subjects in civil engineering. 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 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.
So the thermal comfort inside a building can be achieved by having different construction. The post rat trap bond method in construction appeared first on architecture admirers. 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. Akhtar et al 2011 concluded based on their experimental work that the values of. Pick up your rat by placing your hand under its belly. Jan 20, 2020 rat trap bond is a modular type of masonry bond in which the bricks are placed in a vertical position which creates a cavity in the wall while maintaining stay safe and healthy. Pdf comparison of performance of rat trap brick bond. Eliminates the need to underpin adjacent structures. The rat trap 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. Pdf comparison of performance of rat trap brick bond with the. Dec 24, 2015 rat trap masonry have about 20% less dead weight and hence reduced sized of structural members and cost savings. May 11, 2015 the material presented shows that the rat trap bond wall can be successfully adopted for normal buildings and will result in 25% saving in bricks and more than 30% saving in mortar.
A modification of flemish bond with the stretchers laid on edge explanation of rat trap bond. Building walls with rat trap bondtheyre really cool bt. The cavity in rat trap masonry provided added thermal comfort. A lot of people are suspicious of whether home rat. My architect had always said that rat trap bond is what hed use on our load bearing walls, but now has suddenly changed to say that you cant use it on load. A good building stone should be free from decay, flaws, veins, cracks and sandholes. 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. This gives a wall with an internal cavity bridged by the rowlocks, hence the reference to rat traps. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses. Hope house construction low cost feature rat trap bond. 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. This rat trap bond manual is part of the practical construction knowhow transfer. Pdf comparative performance of masonry bond patterns.
Popularised by the iconic architect laurie baker who died last week, this is a special arrangement of bricks that leaves air gaps between walls. Basic construction training manual for trainers join for water. Product trapper max glue traps 6 glue boards trap mouse bugs insects bed bugs spiders cockroaches nontoxic. It is a 9 inches 23 cms thick, load bea ring wall but in this type of wall construction, bricks are used in such a way tha t. Brick masonry is used for construction of buildings and other structures by using brick stone, stone blocks, brick blocks with different types of masonry. Random rubble arch foundation is used for these houses.
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