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Superplasticizers (SPs), also known as high range water reducers, are additives used for making high-strength concrete or to place self-compacting concrete. Plasticizers are chemical compounds enabling the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.
A portfolio of concrete admixtures, cement additives, and solutions for underground construction is bundled under the Master Builders Solutions brand. Founded in 1909, the company operates 35 production sites in Europe, North America, Australia, and New Zealand. Master Builders Solutions employs about 1,600 individuals worldwide.
BASF SE (German pronunciation: [beːaːɛsˈʔɛf] ⓘ), an initialism of its original name Badische Anilin- und Sodafabrik (German for 'Baden Aniline and Soda Factory'), is a European multinational company and the largest chemical producer in the world. [2] [3] [4] Its headquarters are located in Ludwigshafen, Germany.
AMPS is made by the Ritter reaction of acrylonitrile and isobutylene in the presence of sulfuric acid and water. [2] The recent patent literature [3] describes batch and continuous processes that produce AMPS in high purity (to 99.7%) and improved yield (up to 89%, based on isobutene) with the addition of liquid isobutene to an acrylonitrile / sulfuric acid / phosphoric acid mixture at 40°C.
PVC, used extensively in sewage pipes, is only useful because of plasticizers. [1]A plasticizer (UK: plasticiser) is a substance that is added to a material to make it softer and more flexible, to increase its plasticity, to decrease its viscosity, and/or to decrease friction during its handling in manufacture.
BASF Performance Products Limited Ciba was a chemical company based in and near Basel , Switzerland . "Ciba" stood for "Chemische Industrie Basel" (Chemical Industries Basel) and was formed when the non-pharmaceuticals elements of Novartis were spun out in 1997, [ 1 ] following the merger in the previous year of Ciba-Geigy and Sandoz that ...
Compared to using Portland cement, the resulting concrete-mix using EMC does not require a higher "total cementitious content" to meet strength-development requirements. In testing by BASF, the 28-day strength-development for 55% replacement of Portland cement by a natural pozzolanic EMC was 14,000 psi / 96.5 MPa (i.e. > C95). This comprised a ...
Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]