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Parts of the certificate are optional, such as the CO2 certification -- so not all CSC certified products are low carbon. [11] The certificate is administered by "regional system operators" such as German Ready-Mixed Concrete Association in Germany. [12] [13] As of 2021, 485 concrete industry organizations had the certification. [citation needed]
In 2013, 70.8 percent of portland cement was sold as ready-mix concrete, such as is delivered in cement-mixer trucks. 11.5 percent was sold dry to contractors and construction materials stores; 11.3 percent was sold to manufacturers of concrete products; 4.6 percent was sold for oil and gas wells, and 1.8 percent was sold to government agencies ...
Portland Cement Association is a non-profit organization that promotes the use of cement and concrete. The organization conducts and sponsors research, [ 2 ] participates in setting cement manufacturing standards, [ 3 ] [ 4 ] and disseminates free designs of concrete-based architectural structures, [ 5 ] among other functions.
TXI cement plant in Midlothian, Texas on January 27, 2007 Its Midlothian plant on the south side of Midlothian, Texas ( 32°27′43″N 97°1′21″W / 32.46194°N 97.02250°W / 32.46194; -97.02250 ) is about 27 miles (43 km) south of downtown Dallas
In September 2012, the company acquired plants in Sugar Creek, Missouri and Tulsa, Oklahoma from Lafarge for $446 million. [5] In October 2014, the company acquired CRS Proppants LLC, a frac sand supplier, for $225 million. [6] In February 2017, the company acquired a cement plant in Fairborn, Ohio from Cemex for $400 million. [7]
Oldcastle Materials Inc. is a supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, [2] [3] and has approximately 18,000 employees at 1,200 locations, as of March 2018.
PTI's manuals and technical guides are designed to provide guidance on the design, construction, maintenance, and repair/rehabilitation of post-tensioned concrete structures. In addition , PTI aims to ensure that specifiers and purchasers of post-tensioning materials receive best products and services that meet a standard of quality through its ...
1920 – Effect of Storage of Cement (Investigation of storage conditions for periods up to 5 years). 1920 – Effect of Tannic Acid on Strength of Concrete ; 1921 – Quantities of Materials for Concrete, D. A. Abrams en Stanton Walker (Recipes for concrete reporting its strength after 28 days of curing ranging from 2000 to 4000 psi).