Blockwork is the masonry construction of concrete or cement blocks. Blockwork is in use for the construction of houses since the 1930s. Block laying services recommend as they are cheap, sturdy and easily constructed. Block laying services company use blocks that are either full blocks or hollow. The hollowing of the blockwork makes the blocks lighter and easier to work with for block laying contractors. Hollowing also increases insulation capacity. Block laying service providers advise that all buildings use blockwork in one way or another. A house built with blockwork and using good quality concrete blocks can last up to 100 years. According to block laying company services, block laying contractors, block laying services and the Concrete Block Association, 60million square meters of dense and lightweight concrete building blocks produced each year.
BEGINNING YOUR BLOCKWORK
Cinder blocks, concrete blocks and hollow tile blocks are commonly known as Concrete Masonry Units (CMUs) when used in the blockwork. Block laying services direct that these blocks are much larger than ordinary bricks and are easier to lay. Because of the difference in materials, blocks have lower water absorption rates than bricks which makes them an ideal choice for block laying contractors. An advantage of block laying services using blocks rather than bricks is reinforcement. One can fill block voids with either concrete or steel rebar. Doing this increases wall strength and stability within the blockwork. Block laying services make the blocks in standard nominal sizes. These are: 400 x 300 W x 200 H, 400 x 250 W x 200 H, 400 x 200 W x 200 H, 400 x 150 W x 200 H, 400 x 100 W x 200 H. Sizes do not differ between solid and hollow blocks. Sizes include the 10mm allocation for mortar.
Block manufacture companies manufacture the blocks in steel molds. It ensures that each unit can be tightly controlled to reduce intolerances. Block laying services express the density of blocks in a kilogram per meter cubed method. Block laying company uses the blocks with the following densities: 2100 kg/m3, 1000 kg/m3 and 550 kg/m3. Block laying contractors consider 2100 kg/m3 density blocks as normal weighted blocks. Block laying services use the 2100 kg/m3 blocks as the basic block for building. Block laying company services refer to the 1000 kg/m3 block as the lightweight block. The 550 kg/m3 density blocks known as the Autoclaved Aerated blocks by block laying contractors.
Block laying services insulate blockwork by creating a cavity where a double-layered skin then sandwiches in the insulation. Because of recent changes within the block laying services industry, these cavities now need to be at least 125mm wide. Airtightness can be an issue for block laying contractors when building with blocks as it is not as airtight as timber or bricks. R-value is important when beginning any block laying services. R-value is the resistance to heat that flows through blockwork. Generally, eight-inch concrete block walls have an R-value of 0.08 per square inch. Insulated concrete blocks can increase their R-value to about 1.2 per square inch. Block laying services that use air-entrained blocks can have R-values as high as 3.9.
THE DIFFERENT TYPES OF MATERIALS FOR BLOCK LAYING, BLOCKWORK
Block laying company services promote the four most common types of blocks as being: Air Crete, ICF, concrete and thin joint. Air Crete blocks are super lightweight blocks that come into construction by pushing air into the concrete during the manufacturing process. These have been around since the 1980s and are still a steady favorite of many blocks laying company services and block laying services. Air Crete blocks offer fire protection and are do not absorb water readily. Block laying contractors review the Air Crete blocks as being easy to cut, handle and put. Block laying services have reported some issues with cracking when applying plaster, but there are ways to work around this.
ICF stands for Insulated Concrete Framework. Block laying services state that these have their base around hollow polystyrene blocks which gets the place straight into the wall. Block laying contractors then pour a ready-mix concrete into the core. These blocks have insulation included in the polystyrene.
Block laying company services advise that these blocks are easy to construct for unskilled labor. ICF blocks will cost twice more than Air Crete blocks. Concrete blockwork is the most widely used by block laying services. Concrete blocks are cheaper than Air Crete blocks and are the preferred block for foundations and beams. Block laying contractors can use the concrete blocks for achieving a high thermal mass, but it is harder to lay. One cannot include insulation. Concrete blocks have a high density but are more prone to water absorption. These blocks can withstand up to 3,500 psi. Concrete blocks get their prices by block laying company services at the rate of per square meter.
Block laying contractors apply a small amount of glue mortar, usually two to three millimeters. It is quick to set which let’s block laying contractors build the walls fast.
BLOCK TYPES WITHIN THE BLOCK LAYING SERVICES INDUSTRY
There are two main types of blocks within the block laying company services industry. These are solid and hollow. The hollow blocks further categorized into eight different subcategories. Stretcher blocks classed by block laying services as the blocks that are used to join corners. Mostly laid adjacent to the front of the wall structure. Corner blocks are those used at the end of the structure. Block laying contractors place pillar blocks when they use pillars. These also known as double corner blocks. Block laying contractors use Jamb blocks when there is an elevate window or an opening or cavity in the wall. Blocks that apply for any partition walls are partition blocks.
Block laying company services advise that these partition blocks have a more significant height than they do breadth. Where beams are there in the structure, lintel blocks get their placing by block laying contractors. These lintel blocks bear the load coming from the leading part of the blockwork structure. Block laying contractors put frogged brick blocks where extra help and bonding needed with the top blockwork. Bullnose blocks are comparable to corner blocks but have rounded edges. Paver blocks are another type used by block laying services and block laying company services for footpaths and pathways.
STEPS REQUIRED FOR COMMENCING BLOCK LAYING, BLOCKWORK MASONRY
According to block laying, services walls are the central part of any blockwork within a building. Making sure that block laying contractors investigate the options for ensuring the right blocks for load-bearing is imperative. When beginning a blockwork project, start with the block laying contractor marking the outer concrete perimeter. Measuring the entire area out, leaving a small allowance for any resistance in the blocks. Block laying services suggest that having a strong foundation is the backbone of any blockwork project. Once they lay, the concrete foundation, block laying company services recommend to then cut the blocks to size and begin to lay the blockwork. Once the laying of all blockwork gets complete, one can use mortar between the layers to cement them in. For structural reinforcement, one can pour cement into any voids of the blockwork.
ENVIRONMENTALLY FRIENDLY BLOCK LAYING, BLOCKWORK OPTIONS
Although concrete blocks have criticized as being detrimental to the environment, block laying services are making improvements. Block laying company services encourage the use of a substitute for the solid cement blocks. Fuel ash is a waste product of a coal power station. It can replace up to fifteen percent of the cement in each cement block. It makes it a great environmentally friendly substitute and gets a recommendation from block laying services and block laying company services. As renewable materials are becoming more widely known within block laying services, more people are turning to environmentally friendly options. The market for naturally occurring materials and other environmentally friendly alternatives provides an excellent opportunity for those wanting to reduce their emission footprint.
Blocks such as those made from clay and using honeycomb structure have been in for years but are only now becoming more popular. The clay honeycomb blockwork formed with a cellular structure. This cellular structure traps in the air, giving the block a high level of insulation. Hemp blocks also offer a high level of insulation, which makes them ideal for those block laying company services that are in colder areas. Hemp blocks are highly sustainable because of the ability they have for sequestering carbon but are not yet commonly available.