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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.
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 ...
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).
Sulfur concrete has a low porosity and is a poorly permeable material. Its low hydraulic conductivity slows down water ingress in its low porosity matrix and so decreases the transport of harmful chemical species, such as chloride (pitting corrosion), towards the steel reinforcements (physical protection of steel as long as no microcracks develop in the sulfur concrete matrix).
Elevated groundwater contaminant concentrations have been reported in the Fifty-Foot Sand water-bearing zone (FFSZ) at one well within the Brio Site boundary. [10] The Brio Site Task Force is completing field work for an investigation of the FFSZ groundwater at multiple locations on site in order to assess the need for further remedial action.
This is a complete list of all incorporated cities, towns, and villages and CDPs within Houston–The Woodlands–Sugar Land metropolitan area defined by the U.S. Census as of April 2010. Cities with more than 2,000,000 inhabitants
In 1970 the City of Pasadena created an industrial district that included the Bayport complex. The development, created in 1970, is among the largest private industrial complexes in the United States. [2] [3] [4] The leading center for chemical processing in the Houston area, Bayport contains more than 60 chemical plants. [3]
South Houston is a city in the U.S. state of Texas, within Houston–The Woodlands–Sugar Land metropolitan area and Harris County. The population was 16,153 at the 2020 census . [ 4 ] It is bordered by the cities of Houston and Pasadena , and geographically located southeast of Houston.
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