英文期刊文章.docx

英文期刊文章
Concrete international /
April 2022 59
By leo KAhl
C
oncrete contractors sometimes rof the flexible base chemistry used to make its cements, CeraTech is able to use locally available byproducts including fly ash, wood ash, crushed glass, and recycled concrete to produce its products. The raw materials used in its manufacture result in concrete that has a tan or brown color while fresh and that later fades to tan or gray.
GreatWhite contains 88% byproducts, but allows the return of repaired or replaced areas, such as roads, bridges, runways, or parking garages, to service in as little as 2 to 3 hours. The product has also been shown to reduce alkali-silica reaction, in some cases allowing the
Fast and Green
Cement for rapid setting and strength-gaining applications is also
environmentally friendly
use of local aggregates rather than having to transport acceptable aggregates from great distances.
The amount of water added to the concrete is mainly used to control workability. A proprietary activator solution is used to start the strength development process. CeraTech has also developed a modifier that works with the activator to accommodate a broad range of ambient and application temperatures.
A minimum section thickness of 3 in. (75 mm) is suggested when 1 in. (25 mm) coarse aggregate is used. This