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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.
Water reducers are special chemical products added to a concrete mixture before it is poured. They are from the same family of products as retarders . The first class of water reducers was the lignosulfonates which has been used since the 1930s.
Self-consolidating concrete or self-compacting concrete (SCC) [1] is a concrete mix which has a low yield stress, high deformability, good segregation resistance (prevents separation of particles in the mix), and moderate viscosity (necessary to ensure uniform suspension of solid particles during transportation, placement (without external compaction), and thereafter until the concrete sets).
Anyone with information is asked to contact the Los Angeles County Sheriff's Department Homicide Bureau at (323) 890-5500. Those wishing to remain anonymous may call Crime Stoppers at (800)222 ...
The performance of a concrete mix can be altered by use of admixtures. Admixtures can be used to reduce water requirements, entrain air into a mixture, to improve surface durability, or even superplasticise concrete to make it self-levelling, as self-consolidating concrete, [14] the use of admixtures requires precision in dosing and mix design ...
“Omega-3 fatty acids reduce inflammation, lower blood pressure and decrease triglycerides, key ingredients for optimum cardiovascular health,” says Patricia Bannan, M.S., RDN, author of From ...
A man accused of attacking a Colorado reporter after questioning whether he was a citizen and saying “This is Trump’s America now” has had mental health issues for years, his lawyer said.
Texas does not have townships; areas within a county are either incorporated or unincorporated. Incorporated areas are part of a city, though the city may contract with the county for needed services. Unincorporated areas are not part of a city; in these areas the county has authority for law enforcement and road maintenance.
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