| Diagonal Brace | A diagonal brace in the context of commercial construction projects in Australia is a structural element used to provide lateral stability to a building or structure. It is typically installed at an angle, connecting different parts of the structure, such as beams and columns, to resist lateral forces like wind or seismic loads. This helps in preventing deformation and maintaining the structural integrity of the building. |
| Dead Load | In the context of commercial construction projects in Australia, the term "dead load" refers to the permanent and unchanging weight of the building's structural components, such as walls, floors, roofs, and any other fixed elements. This includes the weight of the materials used in the construction, such as concrete, steel, and masonry, as well as any fixtures or equipment that are permanently installed in the building. |
| Datum | In the context of commercial construction projects in Australia, a "datum" refers to a reference point or level used as a basis for measuring elevations and depths on a construction site. This reference point is crucial for ensuring that all elements of the construction project are accurately aligned and constructed according to the design specifications. The datum is typically established relative to a known benchmark, such as the Australian Height Datum (AHD), which is a standardized reference level for elevations across Australia. |
| Damp-proof course | Impermeable barrier just above ground level at the base of the wall to prevent rising damp. Modern damp-proof courses are generally made from 0.5 millimetre thick, black, polyethylene sheeting. One of the oldest types of damp-proof courses is made up of tar and sand. Another type of impermeable barrier that was traditionally used was glazed hard-burnt ceramic, similar in size and shape to bricks. |
| Dado | In the context of commercial construction projects in Australia, a "dado" refers to the lower part of a wall, typically extending from the floor to about waist height, which is often treated differently from the upper section of the wall. This treatment can involve different materials, colors, or textures, and is often used for both aesthetic and practical purposes, such as protecting the wall from damage in high-traffic areas. |
| DA (Development Application) | In the context of commercial construction projects in Australia, a Development Application (DA) is a formal submission to the local consent authority (Council) seeking permission to carry out a new development . The DA is an application for the Council to consider a proposal for development, which includes the submission of an application form and accompanying documentation . |
| Curing | In the context of commercial construction projects in Australia, curing of concrete refers to the process of controlling the loss of moisture from concrete after it has been finished . This process is crucial to ensure that the concrete achieves its desired strength, durability, and quality. |
| Cupping | In the context of commercial construction projects in Australia, "cupping" typically refers to a type of wood deformation where the edges of a wooden board or panel curl up or down, creating a concave or convex shape. This phenomenon can occur due to moisture imbalances, improper drying, or environmental conditions. |
| Crossover | In the context of commercial construction projects in Australia, a "crossover" typically refers to a vehicular access point that connects a property to the public road network. This includes the section of the driveway that crosses over the public footpath and any verge area to reach the roadway. |
| Cross Cutting | In the context of commercial construction projects in Australia, "cross-cutting" typically refers to the process of cutting materials, such as timber, metal, or other construction elements, perpendicular to their length. This is a common practice in construction to ensure that materials fit specific dimensions and design requirements. When performing cross-cutting in commercial construction projects, it is essential to comply with Australian Standards and the Building Code of Australia (BCA) to ensure safety, quality, and structural integrity. |
| Cross Brace | In the context of commercial construction projects in Australia, a cross brace is a structural component used to enhance the stability and rigidity of a framework, such as a steel or timber structure. Cross bracing typically involves the installation of diagonal supports that intersect, forming an "X" shape, which helps to distribute loads and resist lateral forces, such as those caused by wind or seismic activity. |
| Crazing | Crazing refers to the formation of a network of fine cracks on the surface of concrete, typically caused by shrinkage or thermal stresses. In the context of commercial construction projects in Australia, crazing is an important consideration to ensure compliance with Australian standards and Building Code of Australia (BCA) requirements. |
| Cranes | In the context of commercial construction projects in Australia, a crane is defined as a plant item used to raise or lower a load, as well as move a load horizontally . Cranes can be fixed (e.g., tower, bridge, gantry, portal boom) or mobile, and are an essential part of modern civil, residential, and commercial construction . |
| Cover | The actual distance a board will cover in width after milling; notably in flooring, weatherboards and lining boards. |
| Covenant | A covenant is a legal agreement or promise between two or more parties that is typically included in a deed or contract. In the context of commercial construction projects in Australia, a covenant may be used to impose specific conditions or restrictions on the use or development of land. These covenants must comply with relevant Australian standards and the Building Code of Australia (BCA) requirements. |
