Brick structure when broken should be homogeneous, compact and free. Following are the advantages and disadvantages of 9 rattrap bond masonry w. Basics of rat trap bond module, ends, l and t junctions importance of laying uniform thickness of mortar correct calculation of length of walls as per rat trap modules different types of pointing use of tools in rat trap bond understand the basics of rat trap bond masonry practice limitations of rat trap bond. The cavity provides thermal comfort inside the wall. A rat trap bond is a type of wall brick masonry bond in which bricks are laid on edge i. Rat trap bond, also known as chinese bond, is a type of garden wall bond similar to flemish, but consisting of rowlocks and shiners instead of headers and stretchers the stretchers and headers are laid on their sides, with the bed face of the stretcher facing outward. A masonry unit laid flat with its longest dimension. Perforated brick masonry stabilized compressed earth blocks. Rat trap bond construction, advantages, and disadvantages. Masonry construction can provide beautiful walls and floors at economical prices. A brick bond is a pattern in which bricks are laid. The types of raking bond are diagonal brick bond and herringbone brick bond herringbone brick pattern. Pdf comparison of performance of rat trap brick bond. A modification of flemish bond with the stretchers laid on edge explanation of rowlock bond.
This video explains what raking bond in brick masonry brickwall is. Brick masonary ppt presentation by abhishek bagul 1. Types of mortar cement mortar lime mortar cementlime mortar lime surkhi mortar mud mortar. Rat trap bond it is made by placing the bricks on their sides having a cavity of 4. The adhesive strength that prevents delamination of the plies of a builtup roofing membrane. Brick masonry s brick brick in the wall brick facade brick and stone brick wall architecture concept diagram brick. Nov 20, 2019 brick masonry of various types has been used in building construction for thousands of years, and it remains one of the versatile and durable of all building materials. Rattrap bond is a special type of masonry deodhar and patel3 worked on behaviour of brick masonry construction which is economical when compared to in. Laying of bricks bonded together with mortar is known as brick masonry.
The bricks in the facing are laid in alternate courses of stretchers and headers. That in the flemish bond, the smaller bricks seem to be about half the size of the bigger ones, while in the rat trap bond, they seem to be only about a third the size. 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 conventional horizontal position and thus creating a cavity hollow space within the wall. Pdf comparison of performance of rat trap brick bond with the. Brickwork is masonry produced by a bricklayer, using bricks and mortar.
Practical action walls using the rat trap bond technology technical brief 3 corbel bench seat when constructing a corbel seat an 8 wide rattrap supporting wall must be constructed on a brick foundation of 12 width and 3 thickness to the required length of the seat. Types of bonds in brick masonry wall construction and. Typically, rows of brickscalled courses are laid on top of one another to build up a structure such as a brick wall. Subscribe and download premium stuff for free from civil engineering blog. Types of bricks modular bricks conventional bricks 4. Stretcher bond now used for most cavity brick walls but has a monotonous appearance. Brick onedge is used for rattrap bond masonry, which is considered to be stronger than flat bricks due to the production process. Patterns for paving surfaces include basket bond and herringbone bond. This small book is about the best ways of using this common burnt brick, the simplest and least complicated of all our inventions. Other variations of this alternating pattern include the english bond, rattrap bond, monk bond, and header bond. Rat trap bond is a kind of wall brick masonry bond in which bricks are sited on edge such that. If you are seeing only header bricks facing you than such a brick bond is known as a header bond.
Can make a wall of one brick thickness with fewer bricks than a solid bond. This bond is weak in strength but it is economical brick masonry is made up of brick units bonded together with mortar. Rattrap bond is a kind of wall brick masonry bond in which bricks are sited on edge such that. Masonry adhesive for specialty masonry applications. If you break one brick, then more than one brick will fall down. The simplest type of wall is constructed in solid brickwork, normally one brick thick. In this type of brick, masonry bricks are placed on edges making visible the shinner and rowlock. There are many different types of brick bonds and each has its own look, installation challenges, and in the case of walls, structural considerations.
Of bricks and bonds the rat trap bond architecturelive. Jul 10, 20 rat trap bond it is made by placing the bricks on their sides having a cavity of 4. Written by a master mason with over 40 years of professional masonry and construction experience, this allnew edition of todays bestselling guide to understanding and learning how to do masonry work is approved by the brick industry of america. Rattrap bond is a kind of wall brick masonry bond in which bricks are sited on edge such that the shiner. The rat trap bond construction is a modular type of masonry construction. 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. A solid masonry wall is a poor insulator solid masonry wall is massive and as such absorbs and stores heat during day and gives up during night.
Containing the elements of building, surveying and. Look up brickwork in wiktionary, the free dictionary. Types of brick bonds some of the different types of brick bonds are, 1. Rattrap bond saves consumption of bricks by 18% and. This rat trap bond manual is part of the practical construction knowhow transfer.
For descriptions of various masonry bonds, see american bond, basketweave bond, chinese bond, common bond, dutch bond, english bond, english cross bond, english garden wall bond, flemish bond, flemish garden wall bond, flying bond, header bond, inandout bond, monk bond, raking stretcher bond, rat trap bond, rowlock bond, running bond, silver. 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 the same wall thickness as that of the conventional brick masonry wall. Tell a friend about us, add a link to this page, or visit the webmasters page for free fun content. Oct 29, 2016 home tutorials low cost rat trap bond for brick masonry. Pdf technical report on brick masonry structures saileysh. Rat trap bond advantages and disadvantages engineering. A rattrap bond is a type of wall brick masonry bond in which bricks are laid on edge i. Rat trap masonry uses fewer bricks and mortar reducing the cost of masonry up to 30% when compared with conventional brick masonry. Pdf cost wise comparison on gap fillers in masonry walls.
Used in load bearing as well as thick partition wall. The cavities in the masonry act as thermal insulators. Rat trap bond brick wall construction by earthbound. Oct 01, 20 brick masonary ppt presentation by abhishek bagul 1. This gives the wall an internal cavity which provides effective thermal insulation. Normally the masonry units are laid with cement mortar, which binds them together to create a structure. Rattrap bond also chinese bond substantially observes the same pattern as flemish bond. The other disadvantage is in using concealed wiring and plumbing. Specification for facing brick solid masonry units made from clay or shale c 279. Pdf the aim of this paper is to address the low cost housing. 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. Building with many windows providing desired ventilation and light lintels are constructed just above the openings.
Good brick bonds can ensure the strength of a building and aesthetic beauty of brick walls, brick pillars and entire brick works depends on the quality of bonds. This gives a wall with an internal cavity bridged by the. 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. It applies to both brick walls and brick paving for patios and paths, as well as to concrete block and other types of masonry construction. Building walls with the rat trap bond posted on 6 november, 2012 by vistasp just in case ive got you visualising rodents scurrying about where theyre not wanted, ease your mind. Thermal comfort in traditional buildings composed of local. Extraordinarily complete, the author draws upon more than 25 years as an instructor to provide users with a readerfriendly, comprehensive guide to. Dec 20, 2016 we are specialist in this kind of different works which gives very economical costing to various kind of construction works. Low cost rat trap bond for brick masonry iamcivilengineer. Nov 05, 2017 this video explains what raking bond in brick masonry brickwall is. These header bond brickwork is very efficient in case of wall curving in plan.
Types of bonds in brick masonry wall construction are classified based on laying and bonding style of bricks in walls. Rowlock bond article about rowlock bond by the free dictionary. 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. Brick and cmu construction this publication 2012 masonry institute of washington. Experimental investigation of rattrap bond masonry systems under base shock excitation. Nov 06, 2012 building walls with the rat trap bond posted on 6 november, 2012 by vistasp just in case ive got you visualising rodents scurrying about where theyre not wanted, ease your mind.
A financial guarantee by a surety company that work will be completed as described in a contract. Thus, the interiors remain cooler in summer and warmer in winter. Pdf energy efficiency and sustainability are the basic needs of modern era. Brick masonry of various types has been used in building construction for thousands of years, and it remains one of the versatile and durable of all building materials. Also see bid bond, completion bond, contract bond, labor and material payment bond, performance bond, surety bond. 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. University of calgary, canada abstract the intent of a new parametric study at the university of calgary is to. For example, in the uk a brick is defined as a unit having dimensions less than 337. Types of bonds in brick masonry wall construction and their. Compressive strength is only slightly less or equal when you use normal burnt clay bricks.
A modification of flemish bond with the stretchers laid on edge. The manner of overlapping bricks for construction of wall is called brick bond. Rat trap bond is a modular type of masonry bond in which the bricks. Masonstraining programme with house construction training in rat trap bond brickwork, selected brick elements. Rat trap bond this rare bond was used in the early to mid 19th century as a cheap form of brickwork by laying the bricks on edge. Masonry consists of building structures by laying individual masonry units brick, concrete block, stone, etc. We are specialist in this kind of different works which gives very economical costing to various kind of construction works. Fortunately most of us cannot afford these soulless wire cut bricks. Test methods for evaluating masonry bond strength c.
One such building technique is the use of rat trap. These article links provide information on different types of bricks, mortar products, and installation techniques used by masons, construction pros, and diy homeowners. Pdf comparison of performance of rat trap brick bond with. Other variations of this alternating pattern include the english bond, rat trap bond, monk bond, and header bond. Shiner and rowlock are visible on the face of masonry. Pdf experimental investigation of rattrap bond masonry. Brick driveway 40 ideas backyard patio ideas brick outdoor living for 2019 backyard brick walkway patterns mortar base brick driveway laying tips how to build a house i was just given a pile of bricks that i cant even pick up, but when i do i want to make a little area in my back yard with them. Building walls with rat trap bondtheyre really cool bt. 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.
The header course is commenced along with a quoin header followed through a queen closer that is a half brick cut longitudinally and continued with successive headers. Blockade will help create a brick wall that is built to stand the test of time and remain free from the deteriorating effects of mold and moisture that can become trapped behind brick exteriors, while preventing mortar droppings from clogging the weep holes. Following are the advantages and disadvantages of 9 rat trap bond masonry w. The rat trap bond is simply a method of laying bricks when building a wall. Many types of bonds are used in different ways for construction of brick walls or brick pillars. Brick onedge is used for rat trap bond masonry, which is considered to be stronger than flat bricks due to the production process. It saves approximately 25% brick and 40% cement, and reduces the construction cost by 25%. Header bonds are used to render brickwork of 9 thickness or the width of the brick used around 18 cm. In addition, the air cavities act as a thermal insulation and reduce heat penetration from the external sources. Some more complex patterns are selected for aesthetic reasons, while simple patterns are used for brick surfaces that will be covered with plaster or stucco. Brick bond article about brick bond by the free dictionary. The bonds in brick masonry is developed by the mortar filling between layers of bricks and in grooves when bricks are laid adjacent to each other and in layers in walls. Pier a free standing section of masonry such as pillar or panel.
Rowlock bond article about rowlock bond by the free. Types of brick bonds bonds used for bricks english. Pdf experimental investigation of rattrap bond masonry systems. We have a basement done with stone masonry 14 walls, and then will have another 3 in ashlar masonry, and then about 7 in kerala brick at 9 thick. Bond patterns such as flemish bond, english bond, dutch bond english cross, common bond 6th course header and common bond 6th course flemish header with header units and courses were traditionally used in doublewythe brick construction to bond separate wythes together for structural strength. Thus 110 mm face is exposed from front elevation for the brick size of 230mmx110mmx75mm. It can be avoided by the use of snapped headers to create other forms of brickwork.
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