Caulking is a process and material (also called a sealant) to seal connections or connections in various structures and some types of piping. The oldest form of caulking is used to create layers in wooden boats or waterproof vessels, by riding fibrous material into wedge-shaped layers between boards. A previously associated process is used to incorporate cast iron drainage pipe parts.
Cultivating is also a term to describe the process used to make iron or steel vessels glued and waterproof kettles or steam.
The same term also refers to the application of flexible sealing compounds to seal gaps in buildings and other structures against water, air, dust, insects, or as a component in firestopping. In the tunneling industry, caulking refers to the sealing of connections in segmental precast concrete tunnels, usually with concrete.
Video Caulking
Historical usage
Wooden shipbuilding
Traditional canning (also spelled stalking) on ​​wooden ships using cotton and oakum fibers (hemp fibers soaked in pine tar). These fibers are pushed into wedge-shaped wedges between boards, with large hammers and a tool such as a large chisel called iron caulking. The caulking is then covered with putty, in the case of a hull layer, or the other in a deck suture with a pitch of melted pitch, in a process called as pay, or "calefaction"
Modern sea sealants are often used now in place of pitch, or even to replace the oakum and cotton itself.
Iron or steel shipbuilding
In nailed steel or iron construction, caulking is the process of making waterproof coating by moving a thick, blunt tool into a coating adjacent to the suture. This has the effect of moving the metal to be very compatible with the adjacent pieces. Originally done by hand like a caulking wooden boat, pneumatic tools are then used. With the advent of electric arc welding for ship construction, the landing of steel vessels became obsolete.
Boilermaking
Caulking of iron and steel, of the same type described above for ship hulls, is also used by boiler makers in the era of boilers glued to make waterproof and steam connections.
Maps Caulking
Modern usage under construction
Caulk may refer to the substance of caulking or to its application process. Coughing as a term has spread to the building trade, which means the activity of closing joints and cracks in buildings. The caulking function is to provide thermal insulation, water control penetration and noise mitigation.
This is mostly done with ready-made construction chemicals sold as falling asleep such as silicon, polyurethane, polysulfide, sietyl-termination polyether or polyurethane and acrylic sealant.
Backer rod
The backer rod, also called the backing-up material, is a flexible foam product used behind the caulking to improve elasticity, reduce consumption, force caulking into contact with the connecting sides creating better bonds, determining the thickness of the caulking, and determine the cross-section shape of the caulk. The support rod also acts as a bond breaker to keep it from sticking to the bottom of the hole - it is called a three-sided bond - with a sleep that is only attached to the side of the opening in the form of a clock-glass that can flex more easily and tends not to tear. Backer rods can also be used to reduce caulking consumption by filling parts of joints.
Backer rods are often round and rope-like, but many are special and shaped like square, rectangle and D-shapes are available. High temperature support rods are available. It is available in different diameters and firmness, and in polyethylene and polyurethane materials. Backer rods are also present in open cell types and closed-cell foams.
The cell foam is porous open so it will let the gas through it cause the heat of the sealant. Also, the open back rod allows air to enter the rear side of the sealant which speeds up the curing process when used with air-cured sealants such as silicon. The open cell trunk is more compressible than the closed cell foam and should be 25% larger than the junction.
Closed cell foam does not absorb water and is watertight. The enclosed cell bar is less compressible and should not be compressed by more than 25%. The closed cell bar will also lose firmness and gas if damaged during installation or over compression or on sharp turns. The gas can not pass through this support bar and can damage, weaken, and even cause a hole (leaking) in the sealant when loose. Out-gassing is the reason why back-cell backer rods are developed.
Energy efficiency
According to the American Consumer Federation, sealing unwanted leaks around the home is the best way to cut home energy costs and reduce household carbon footprint.
Also, closing cracks and cracks around the house reduces the burden on home appliances and can save time, money and hassle by preventing major repairs. In addition, increasing the life of homes and equipment also reduces waste and pollution to landfills.
Prevent infestation
Sealing cracks and cracks prevent the entry of rats.
References
External links
- New Zealand Association Standard, Glossary of Building Terminology, 1979. ISBNÃ, 0-473-00035-0
- Recommendations for Selecting and Using Caulks and Sealants in Pest Management (PDF)
- The American Consumer Federation: CFA Releases New List of 10 Ways To Reduce House Energy Bills, 2004
- Sample caulking in ship building Mendempul batana Adriatic boat north
Source of the article : Wikipedia
0 Comments