Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and lifted into place ("tilt up"). In contrast, standard concrete is poured into site-specific forms and cured on site.
What is precast concrete slab?
A hollow core slab, also known as a voided slab, hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi-story apartment buildings.
Cast stone is a concrete masonry product simulating natural-cut stone and is used in architectural applications. Cast stone can be made from white and/or grey cements, manufactured or natural sands, crushed stone or natural gravels, and colored with mineral coloring pigments.
Prestressed concrete is a form of concrete used in construction which is "pre-stressed" by being placed under compression prior to supporting any loads beyond its own dead weight. Tendons may be located either within the concrete volume (internal prestressing), or wholly outside of it (external prestressing).
The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay.
Precast concrete composite flooring is a high quality, economical concrete floor construction where long spans and/or high load bearing capacities are required. Suspended concrete floors are constructed using prestressed planks supported by either masonry walls or a supporting steel frame structure.
Concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and Portland cement. Cement, usually in powder form, acts as a binding agent when mixed with water and aggregates.
This delivers the ready mix in a dry state and then mixes the concrete on site. Ready-mix concrete, or RMC as it's also known, refers to concrete that is specifically batched or manufactured for customers' construction projects. It is a mixture of Portland cement, water and aggregates: sand, gravel, or crushed stone.
The first is to use the liquid material to form at the building site; this is so-called in situ concrete. The other method is called precast concrete, in which building components are manufactured in a central plant and later brought to the building site for assembly.
In a tilt-up construction project, the building's walls are poured directly at the jobsite in large slabs of concrete called "tilt-up panels" or "tiltwall panels". These panels are then raised into position around the building's perimeter forming the exterior walls.
Cast-in-situ refers to a construction material, a beam or a pile, that is to be assembled or cast on site rather than prefabricated in a factory. This is the meaning in Civil Engineering.
In situ: In the normal location. An in situ tumor is one that is confined to its site of origin and has not invaded neighboring tissue or gone elsewhere in the body. For example, squamous cell carcinoma in situ is an early stage of skin cancer.
In chemistry, in situ typically means "in the reaction mixture." There are numerous situations in which chemical intermediates are synthesized in situ in various processes. This may be done because the species is unstable, and cannot be isolated, or simply out of convenience.
Situ can refer to: ?in situ, Latin phrase meaning on-site or in-place ?In-situ compaction, a term for spray forming or spray casting ?In situ oxidation, in situ chemical oxidation is a technique to clean up some types of environmental contamination ?In situ polymerization, in polymer chemistry, means "in the
Cancer in situ. An early stage cancer in which the cancerous growth or tumor is still confined to the site from which it started, and has not spread to surrounding tissue or other organs in the body. When cancer in situ involves cells that line the internal organs, or epithelial cells, it is called carcinoma in situ.
Over time, chronic inflammation can cause DNA damage and lead to cancer. For example, people with chronic inflammatory bowel diseases, such as ulcerative colitis and Crohn disease, have an increased risk of colon cancer.
Dysplasia is still a reversible process. However, once the transformation to neoplasia has been made, the process is not reversible. Thus, there is a natural history from metaplasia to dysplasia to neoplasia.
The term indicates that abnormal cells were found on the surface of the cervix. Cervical dysplasia can range from mild to severe, depending on the appearance of the abnormal cells. Dysplasia could go away on its own. Or, rarely, it could develop into cancer.
Metastases can occur in three ways: They can grow directly into the tissue surrounding the tumor; Cells can travel through the bloodstream to distant locations; or. Cells can travel through the lymph system to nearby or distant lymph nodes.
A cancer is said to be in stage 4 of cancer when it has spread far away from the origin into other organs of the body, this progression is also known as metastasis and unless a metastasis is singular—meaning that it has only spread in to one specific location—and it's still accessible, it usually means that the cancer
In the past, many people did not live long with metastatic cancer. Even with today's better treatments, recovery is not always possible. But doctors can often treat cancer even if they cannot cure it. A good quality of life is possible for months or even years.