| 摘要 |
<p>In order to increase the resistance to high temperatures of concrete produced from a concrete mix, a proportion of the cement contained in the mix is replaced by ground granular blast furnace slag (GGBFS). Alternatively, in a pavement quality concrete mix containing naturally occurring aggregates of limestone and sand, a proportion of the naturally occurring aggregates is replaced by a pulverized fuel ash (PFA) in the form of a lightweight aggregate, so as to increase the resistance to high temperatures of concrete produced from the mix. The PFA may be incorporated into the mix in combination with naturally occuring sand and cement.</p> |
