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https://www.yellowpages.com/denver-pa/mip/high-concrete-group-12204274
High Concrete Group sets high standards for precast concrete construction. The company produces high quality parking structures, architectural fa ade systems, industrial and commercial wall panels, office buildings, distribution centers, stadiums and arenas and prisons.
http://overlays.acpa.org/Concrete_Pavement/Technical/FATQ/Design/High_Early_Strength_Concrete.asp
High early strength concrete (2500-3500 psi compressive in 24 hours) is usually accomplished using Type III high-early strength cement (see Table 1), high cement content (600-1000 lb/cu yd), and lower water-cement ratios (0.3 to 0.45 by weight). Super-plasticizers are also used to make the concrete mixture more workable during placement.
http://www.engr.psu.edu/ce/courses/ce584/concrete/library/materials/Admixture/Link-settime.htm
Temperature can have a detrimental effect to concrete strength development. However, proper cold weather concrete curing will enhance concrete strength development. Hot weather is defined as any combination is high ambient temperature, high concrete temperature, low relative humidity, and wind velocity.
https://www.concreteconstruction.net/_view-object?id=00000153-8b93-dbf3-a177-9fbb64e70000
m e n t s , which raise the concrete tempera t u re to 298 de-g r ees F. ( 1 0 ) After 3 hours of heating is completed, the cured spec-imens are allowed to cool 2 hours to about 150 degre e s F( 1 1 ) b e f o r e the pre s s u r e of the jack is released and the molds are re m oved. The cured specimens are ejected
https://precast.org/2013/10/28-day-myth/
Concrete usually reaches 75% of the 28-day strength at seven days. If your concrete is not reaching the proper 28-day strength, I would troubleshoot each step of the process to determine why. Here are example questions you can ask: Q: Is the mix design correct? A high water-cement ratio will result in a concrete with reduced strength.
https://theconstructor.org/concrete/concrete-compressive-strength-variation-with-time/5933/
Variation of Concrete Strength with Time. As per studies and researches, the compressive strength of the concrete will increase with age. Most researches were conducted to study the 28th-day strength of concrete. But in reality, the strength at 28th day is less compared to the long-term strength that it can gain with age.
http://www.ce.memphis.edu/1101/notes/concrete/PCA_manual/Chap17.pdf
concrete with very high durability and very low permeability is consid-ered to have high-performance properties. Bickley and Fung (2001) demonstrated that 40 MPa (6,000 psi) high-performance concrete for bridges could be eco-Fig. 17-1. High-performance concrete is often nomically made while used in bridges (left) and tall buildings (right ...
https://theconstructor.org/concrete/achieve-high-early-strength-concrete/41909/
2. High Cement Content. The increase in cement content (400 to 600 kg/m 3) is another way of producing high early strength concrete.. 3. Low Water-cementing Materials Ratio. The reduction of water to cementing material ratio ranging from 0.20 to 0.45 by mass can produce high-early-strength concrete.
https://www.newenglandtransportationconsortium.org/wp-content/uploads/NETC_ReportFinal_High-Early-Strength-Concrete-V3.pdf
early strength and long-term durability. Two concrete mixtures were developed with a primary goal of reaching high-early strength while maintaining constructability. The secondary goal of the concrete mixtures was to be durable; therefore, measures were taken during the development of the concrete mixture to generate
https://www.highgradematerials.com/
All retail and DIY, please contact the location nearest you for sales and service.. Hours: M-F: 7AM - 5PM Sat: Call for hours Sun: Closed. sales@ null highgradematerials.com
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